Linear Technology DC2007A-A Quick setup guide

1
dc2007a_af
DEMO MANUAL DC2007A-A
DESCRIPTION
LTM4630EV
High Efficiency, PolyPhase
70A Step-Down Power
µModule Regulator
Demonstration Circuit 2007A-A features a PolyPhase
®
design using the LT M
®
4630EV, the high efficiency,
high density, dual 18A, switch mode step-down power
µModule
®
regulator. The input voltage is from 4.5V to
15V. The output voltage is jumper selectable from 0.9V
to 1.8V. The DC2007A-A can deliver a nominal 70A output
current. As explained in the data sheet, output current
derating is necessary for certain VIN, VOUT, and thermal
conditions. The LTM4630 on the DC2007A-A always
operates in continuous conduction mode. The switching
frequency can be programmed through a resistor or can
be synchronized to an external clock signal. The board
allows the user to program how its output voltage ramps
L, LT, LTC, LTM, Linear Technology, the Linear logo, PolyPhase and µModule are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
up and down through the TRACK pin. The output voltage
is tightly regulated between “VO+” and “VO-” through
remote output voltage sensing which improves output
voltage regulation at heavy loads. These features and
the availability of the LTM4630EV in a compact 16mm ×
16mm ×4.41mm LGA package make it ideal for use in
many high density point-of-load regulation applications.
The LTM4630 data sheet must be read in conjunction with
this demo manual for working on or modifying the demo
circuit DC2007A-A.
Design files for this circuit board are available at
http://www.linear.com/demo
Figure 1. 70A PolyPhase LTM4630/DC2007A-A Demo Board

2
dc2007a_af
DEMO MANUAL DC2007A-A
QUICK START PROCEDURE
PERFORMANCE SUMMARY
Specifications are at TA= 25°C
PARAMETER CONDITIONS / NOTES VALUE
Input Voltage Range 4.5V ~ 15V
Output Voltage VOUT VIN = 4.5A ~ 15V, IOUT = 0A ~ 70A, JP5: 1.0V 1.0V ±1.5% (0.985V ~ 1.015V)
Maximum Continuous Output Current Derating Is Necessary for Certain VIN, VOUT and
Thermal Conditions, See Data Sheet for Details.
70A
Default Operating Frequency 400kHz
Resistor Programmable Frequency Range 400kHz to 780kHz
External Clock Sync. Frequency Range 400kHz to 780kHz
Efficiency VIN = 12V, VOUT = 1.0V, IOUT = 70A, fSW = 400kHz 83.5% See Figure 3
Load Transient VIN = 12V, VOUT = 1.0V, ISTEP = 0A ~ 17.5A <80mV, See Figure 4
Output Voltage Ripple VIN = 12V, VOUT = 1.0V, IOUT = 70A <5mV, See Figure 5
Demonstration circuit DC2007A-A is easy to set up to
evaluate the performance of PolyPhase operation of the
LTM4630EV. Due to the high input/output current, the user
should select the proper input supply/load/cable which
can sustain the full load operation. It’s recommended to
pull the load current from J2 and J4. The load current
pulled from J5 and J6 shouldn’t exceed 18A. Please refer
to Figure 2 for proper measurement setup and follow the
procedure below:
1. Place jumpers in the following positions for a typical
1.0VOUT application:
JP1 JP2 JP4 ~ JP8
CLK RUN VOUT SELECT
INT OFF ON JP5/1.0V
2. With power off, connect the input power supply, load
and meters as shown in Figure 2. Preset the load to 0A
and VIN supply to 12V.
3. Turn on the power supply at the input. Place JP2 to the
ON position. The output voltage between “VO+” and
“VO-” should be 1.0V ±1.5% (0.985V ~ 1.015V).
4. Oncetheproperoutputvoltageisestablished,adjustthe
load within the operating range and observe the output
voltage regulation, output voltage ripple, efficiency
and other parameters. Output voltage ripple should
be measured at J7 with BNC cables. 50Ω termination
should be set on the oscilloscope or BNC cables.
5. (Optional) For an optional load transient test, apply an
adjustable pulse signal between “IOSTEP CLK” and the
“GND” test point. Pulse amplitude (3V~ 3.5V) sets the
loadstepcurrentamplitude.Theoutputtransientcurrent
canbe monitored at the BNC connector, J8(5mV/A).The
pulse signal should be a very small duty cycle (<10%)
to limit the thermal stress on the transient load circuit.
6. (Optional) The LTM4630 can be synchronized to an
external clock signal. Place the JP1 jumper on EXT
and apply a clock signal (0V~ 5V, square wave) on the
“EXT_CLK” test point.
7. (Optional) The outputs of LTM4630 can track another
supply. The output voltage tracks the voltage on TRACK
when a valid signal is applied on the test point.
8. (Optional) The DC2007A-A can be configured to a dual
output configuration with VO at 52.5A load current and
VO2 at 18A load current. Stuff a 0Ω resistor on R61
and a 0.1µF on C14. Remove R22, R23, R24, R26, R27,
R28, R32, R33, R35. Output voltage, VO2, is set by R37
based on the equation VO2 = 0.6V(1 + 60.4k/R37).

3
dc2007a_af
DEMO MANUAL DC2007A-A
QUICK START PROCEDURE
Figure 2. Test Setup of DC2007A-A

4
dc2007a_af
DEMO MANUAL DC2007A-A
PARTS LIST
QUICK START PROCEDURE
LOAD CURRENT (A)
0
60
EFFICIENCY (%)
70
80
90
100
10 20 30 40 50 60 70
VO= 1.8V
VO= 1.5V
VO= 1.2V
VO= 1.0V
VO= 0.9V
Figure 3. Measured Efficiency VIN = 12V, fSW = 400kHz
Figure 5. Measured Output Voltage Ripple at 12VIN, 1.0VOUT,
70A with Standard Demo Circuit Default Setup
Figure 6. Thermal Capture at 12VIN, 1.0VOUT, 70A
(TA= 25°C, 400 LFM Airflow and No Heat Sink)
Figure 4. Load Transient 0A to 17.5A (VIN = 12V, VOUT = 1.OV)
0A TO 17.5A LOAD
1.0V OUTPUT (20MHz BW) [50mV/DIV]
1.0V OUTPUT (20MHz BW) [5mV/DIV]
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 8 CIN3, CIN4, CIN5, CIN6, CIN7, CIN8, CIN9, CIN10, CAP, 1210 22µF 10% 25V X5R AVX, 12103D226KAT2A
2 8 CO1, CO5, CO7, CO11, CO15, CO18, CO24, CO38 CAP, 1210 100µF 20% 10V X5R TAIYO YUDEN, LMK325BJ107MM-T
3 6 CO4, CO6, CO10, CO12, CO19, CO25 CAP, 7343 470µF 20% 4V POSCAP SANYO, 4TPE470MCL
4 13 R6, R19, R20, R27, R28, R32, R33, R35, R40, R45, R46,
R62, R63
RES, 0603 0Ω JUMPER VISHAY, CRCW06030000Z0EA
5 2 U1, U2 IC, VOLTAGE REGULATOR, LGA LINEAR TECH., LTM4630EV#PBF
Additional Demo Board Circuit Components
1 1 CIN1 CAP, 150µF 25% 25V ALUM SUN ELECT., 25CE150AX
2 2 CIN2, CIN11 CAP, 1206 1µF 10% 25V X5R TAIYO YUDEN, TMK316BJ105KD-T
3 1 C1 CAP, 0603 100pF 10% 25V XNPO AVX, 06033A101KAT2A
4 0 C2, C3, C5, C8, C9, C12, C13, C14, C15, C16, C17, C20,
C21, C26, C29, C30
CAP, 0603 OPTION OPTION

5
dc2007a_af
DEMO MANUAL DC2007A-A
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
5 4 C4, C10, C18, C22 CAP, 0603 2.2µF 20% 10V X5R TAIYO YUDEN, LMK107BJ225MA-T
6 6 C6, C11, C19, C23, C27, C28 CAP, 0603 1µF 10% 10V X7R TAIYO YUDEN, LMK107BJ105KA-T
7 2 C7, C25 CAP, 0603 0.1µF 10% 25V X7R AVX, 06033C104KAT2A
8 1 C24 CAP, 0603 0.01µF 10% 100V X7R AVX, 06031C103KAT2A
9 0 CO2, CO3, CO8, CO9, CO13, CO14, CO16, CO17, CO20,
CO21, CO22, CO26, CO27, CO28, CO30, CO32, CO33,
CO34, CO35, CO36
CAP, 1210 OPTION OPTION
10 0 CO23, CO29, CO31, CO37 CAP, 7343 OPTION OPTION
11 0 CIN12, CIN13, CIN14, CIN15, CIN16, CIN17, CIN18, CIN19 CAP, 1210 OPTION OPTION
12 2 Q1, Q2 MOSFET, N-CH D-S 30V TO252 VISHAY, SUD50N04-8M8P-4GE3
13 4 R1, R3, R25, R29 RES, 0603 10Ω 5% 1/10W VISHAY, CRCW060310R0JNEA
14 5 R2, R14, R21, R39, R47 RES, 0603 121k 1% 1/10W VISHAY, CRCW0603121KFKEA
15 4 R4, R36, R41, R54 RES, 0603 10k 5% 1/10W VISHAY, CRCW060310K0JNEA
16 0 R5, R7, R8, R10, R30, R37, R38, R42, R44, R48, R49,
R50, R52, R53, R55, R61
RES, 0603 OPTION OPTION
17 4 R9, R31, R43, R51 RES, 0603 100k 1% 1/10W VISHAY, CRCW0603100KFKEA
18 1 R15 RES, 0603 90.9k 1% 1/10W VISHAY, CRCW060390K9FKEA
19 1 R16 RES, 0603 60.4k 1% 1/10W VISHAY, CRCW060360K4FKEA
20 1 R17 RES, 0603 40.2k 1% 1/10W VISHAY, CRCW060340K2FKEA
21 1 R18 RES, 0603 30.1k 1% 1/10W VISHAY, CRCW060330K1FKEA
22 4 R22, R23, R24, R26 RES, 2010 0Ω JUMPER VISHAY, CRCW20100000Z0EF
23 2 R56, R57 RES, 2512 0.010Ω 1% 1W VISHAY, WSL2512R01000FEA
24 0 R58, R59 RES, 2512 OPTION OPTION
25 1 R60 RES, 1206 0Ω JUMPER VISHAY, CRCW12060000ZOEA
26 0 U3, U4 OPTION
27 0 R13, R34 RES, 0603 OPTION OPTION
Hardware
1 11 E1, E2, E3, E4, E6, E7, E8, E9, E12, E13, E22 TURRET MILL MAX 2308-2-00-80-00-00-07-0
2 2 E19, E20 TURRET MILL MAX 2501-2-00-80-00-00-07-0
3 2 JP1, JP2 HEADER, 3-PIN 2mm SAMTEC TMM-103-02-L-S
4 5 JP4, JP5, JP6, JP7, JP8 HEADER, 2-PIN 2mm SAMTEC TMM-102-02-L-S
5 4 J1, J2, J3, J4 STUD PEM KFH-032-10
6 2 J5, J6 JACK, BANANA KEYSTONE 575-4
7 8 NUT, BRASS 10-32 ANY
8 4 LUG RING #10 KEYSTONE 8205
9 4 WASHER, TIN PLATED BRASS #10 ANY
10 2 J7, J8 CON, BNC CONNEX 112404
11 3 JP1, JP2, JP4 SHUNT SAMTEC 2SN-BK-G
12 4 STAND-OFF, NYLON KEYSTONE 8833

6
dc2007a_af
DEMO MANUAL DC2007A-A
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D D C C B B A A

VOUT SELECT
NOTE:UNLESSOTHERWISESPECIFIED,
1.ALLCAPACITORS,RESISTORS0603.
70A
VFB PGOOD COMP RUN TRACK
VOUT
VFB PGOOD COMP RUN TRACK DIFFP DIFFN
VFB
PGOOD COMP
CLKOUT_U1
RUN TRACK VFB
VIN
INTVCC_U1
INTVCC_U1
VOUT
VO+
VO-
VO+
INTVCC_U1
VIN
VO+ VO-
VOUT
EXTVCC
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
14
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
14
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
14
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
REVISION HISTORY
DESCRIPTION DATE APPROVEDECO REV
Haoran W.
PROD
-1 04/17/13
REVISION HISTORY
DESCRIPTION DATE APPROVEDECO REV
Haoran W.
PROD
-1 04/17/13
REVISION HISTORY
DESCRIPTION DATE APPROVEDECO REV
Haoran W.
PROD
-1 04/17/13
CO7
100uF 10V 1210
CO7
100uF 10V 1210
E9
TRACK
E9
TRACK
R16
60.4K
1%
R16
60.4K
1%
E8
EXTVCC
E8
EXTVCC
JP8
1.8V
JP8
1.8V
CIN5
22uF 25V
1210
CIN5
22uF 25V
1210
JP2
ON
OFF
RUN
JP2
ON
OFF
RUN
1 3 2
E1 EXT_CLK E1 EXT_CLK
R6 0 Ohm R6 0 Ohm
+
CO6
470uF 4V 7343
+
CO6
470uF 4V 7343
C6
1uF 10V
C6
1uF 10V
C1
100pF
C1
100pF
C7 0.1uF C7 0.1uF
CO5
100uF 10V 1210
CO5
100uF 10V 1210
JP4
0.9V
JP4
0.9V
CIN6
22uF 25V
1210
CIN6
22uF 25V
1210
R4
10K
R4
10K
+
CO4
470uF 4V
7343
+
CO4
470uF 4V
7343
C4
2.2uF
10V C4
2.2uF
10V
+
CIN1 150uF
25V
+
CIN1 150uF
25V
R7
(OPT)
R7
(OPT)
R2
121K
1% R2
121K
1%
C2 (OPT) C2 (OPT)
JP7
1.5V
JP7
1.5V
R9
100k
1%
R9
100k
1%
R3
10
R3
10
CO2
(OPT)
1210
CO2
(OPT)
1210
R5
(OPT)
R5
(OPT)
E4
VIN-
E4
VIN-
E6
VO-
E6
VO-
E2
VO+
E2
VO+
R15
90.9K
1%
R15
90.9K
1%
R14
121K
1%
R14
121K
1%
R13
(OPT)
R13
(OPT)
CO3
(OPT)
1210
CO3
(OPT)
1210
E22
SGND
E22
SGND
J2
0.6 - 1.8V
VOUT
J2
0.6 - 1.8V
VOUT
E10
SW2-1
E10
SW2-1
E5
SW1-1
E5
SW1-1
R17
40.2K
1%
R17
40.2K
1%
JP6
1.2V
JP6
1.2V
R62 0 Ohm R62 0 Ohm
+
CO10
470uF 4V
+
CO10
470uF 4V
CIN2
1uF 25V 1206
CIN2
1uF 25V 1206
U1 LTM4630EV U1 LTM4630EV
VOUT1
A1
VOUT1
A2
VOUT1
A3
VOUT1
A4
VOUT1
A5
VOUT1
B1
VOUT1
B2
VOUT1
B3
VOUT1
B4
VOUT1
B5
VOUT1
C1
VOUT1
C2
VOUT1
C3
VOUT1
C4
VFB1
D5
SW1
G2
PGOOD1
G9
COMP1
E6
RUN1
F5
TRACK1
E5
VOUTS1
C5
VOUT2
A8
VOUT2
A9
VOUT2
A10
VOUT2
A11
VOUT2
A12
VOUT2
B8
VOUT2
B9
VOUT2
B10
VOUT2
B11
VOUT2
B12
VOUT2
C9
VOUT2
C10
VOUT2
C11
VOUT2
C12
VFB2
D7
SW2
G11
PGOOD2
G8
COMP2
E7
RUN2
F9
TRACK2
D8
VOUTS2
C8
VIN
M2
VIN
M3
VIN
M4
VIN
M5
VIN
M6
VIN
M7
VIN
M8
VIN
M9
VIN
M10
VIN
M11
VIN
L2
VIN
L3
VIN
L4
VIN
L5
VIN
L6
VIN
L7
VIN
L8
VIN
L9
VIN
L10
VIN
L11
VIN
K2
VIN
K3
VIN
K4
VIN
K9
VIN
K10
VIN
K11
VIN
J2
VIN
J3
VIN
J4
VIN
J9
VIN
J10
VIN
J11
GND
A6
GND
A7
GND
B6
GND
B7
GND
D1
GND
D2
GND
D3
GND
D4
GND
D9
GND
D10
GND
D11
GND
D12
GND
E1
GND
E2
GND
E3
GND
E4
GND
E10
GND
E11
GND
E12
GND
F1
GND
F2
GND
F3
GND
F10
GND
F11
GND
F12
GND
G1
GND
G3
GND
G10
GND
G12
GND
H1
GND
H2
GND
H3
GND
H4
GND
H5
GND
H6
GND
H7
GND
H9
GND
H10
GND
H11
GND
H12
GND
M12
GND
M1
GND
L12
GND
J1
GND
J5
GND
J8
GND
J12
GND
K1
GND
K5
GND
K6
GND
K7
GND
K8
GND
K12
GND
L1
SGND
C7
SGND
D6
SGND
F6
SGND
F7
SGND
G6
SGND
G7
FSET
C6
PHASMD
G4
DIFFP
E8
DIFFN
E9
CLKOUT
G5
MODE-PLLIN
F4
TEMP
J6
INTVCC
H8
EXTVCC
J7
DIFFOUT
F8
CO8
(OPT)
1210
CO8
(OPT)
1210
R10
(OPT)
R10
(OPT)
E3
VIN+
E3
VIN+
J4
GND
J4
GND
CO9
(OPT)
1210
CO9
(OPT)
1210
R60
0 Ohm
1206
R60
0 Ohm
1206
R63
0 Ohm
R63
0 Ohm
E7
PGOOD
E7
PGOOD
R8
(OPT)
R8
(OPT)
C5
(OPT)
C5
(OPT)
J3
GND
J3
GND
R18
30.1K
1% R18
30.1K
1%
JP5
1.0V
JP5
1.0V
JP1
EXT
INT
CLK
JP1
EXT
INT
CLK
1 3 2
CO1
100uF 10V 1210
CO1
100uF 10V 1210
C3
(OPT)
C3
(OPT)
CIN4
22uF 25V
1210
CIN4
22uF 25V
1210
R1
10
R1
10
CIN3
22uF 25V
1210
CIN3
22uF 25V
1210
J1
4.5V -15V
VIN
J1
4.5V -15V
VIN

7
dc2007a_af
DEMO MANUAL DC2007A-A
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D D C C B B A A

REMOVE 0 OHM JUMPERS FOR SEPARATE VOUT2_U2.
COMP_U2 RUN_U2
COMP
TRACK_U2
VFB PGOOD RUN TRACK
PGOOD_U2
DIFFOUT_U2
DIFFOUT_U2
VFB_U2
PGOOD_U2 VFB_U2 RUN_U2 COMP_U2 TRACK_U2
COMP
CLKOUT_U1
CLKOUT_U2
RUN TRACK PGOOD VFB
VOUT
INTVCC_U2
VOUT2_U2
VIN
EXTVCC
INTVCC_U2
VO2+
VO2-
VO2+ VO2-
INTVCC_U2
VO2+
VOUT2_U2VOUT
VOUT2_U2
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
24
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
24
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
24
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
R29
10
R29
10
C11
1uF 10V
C11
1uF 10V
R23
0 Ohm
2010
R23
0 Ohm
2010
R38
(OPT)
R38
(OPT)
R19
0 Ohm
R19
0 Ohm
C8
(OPT)
C8
(OPT)
U2 LTM4630EV U2 LTM4630EV
VOUT1
A1
VOUT1
A2
VOUT1
A3
VOUT1
A4
VOUT1
A5
VOUT1
B1
VOUT1
B2
VOUT1
B3
VOUT1
B4
VOUT1
B5
VOUT1
C1
VOUT1
C2
VOUT1
C3
VOUT1
C4
VFB1
D5
SW1
G2
PGOOD1
G9
COMP1
E6
RUN1
F5
TRACK1
E5
VOUTS1
C5
VOUT2
A8
VOUT2
A9
VOUT2
A10
VOUT2
A11
VOUT2
A12
VOUT2
B8
VOUT2
B9
VOUT2
B10
VOUT2
B11
VOUT2
B12
VOUT2
C9
VOUT2
C10
VOUT2
C11
VOUT2
C12
VFB2
D7
SW2
G11
PGOOD2
G8
COMP2
E7
RUN2
F9
TRACK2
D8
VOUTS2
C8
VIN
M2
VIN
M3
VIN
M4
VIN
M5
VIN
M6
VIN
M7
VIN
M8
VIN
M9
VIN
M10
VIN
M11
VIN
L2
VIN
L3
VIN
L4
VIN
L5
VIN
L6
VIN
L7
VIN
L8
VIN
L9
VIN
L10
VIN
L11
VIN
K2
VIN
K3
VIN
K4
VIN
K9
VIN
K10
VIN
K11
VIN
J2
VIN
J3
VIN
J4
VIN
J9
VIN
J10
VIN
J11
GND
A6
GND
A7
GND
B6
GND
B7
GND
D1
GND
D2
GND
D3
GND
D4
GND
D9
GND
D10
GND
D11
GND
D12
GND
E1
GND
E2
GND
E3
GND
E4
GND
E10
GND
E11
GND
E12
GND
F1
GND
F2
GND
F3
GND
F10
GND
F11
GND
F12
GND
G1
GND
G3
GND
G10
GND
G12
GND
H1
GND
H2
GND
H3
GND
H4
GND
H5
GND
H6
GND
H7
GND
H9
GND
H10
GND
H11
GND
H12
GND
M12
GND
M1
GND
L12
GND
J1
GND
J5
GND
J8
GND
J12
GND
K1
GND
K5
GND
K6
GND
K7
GND
K8
GND
K12
GND
L1
SGND
C7
SGND
D6
SGND
F6
SGND
F7
SGND
G6
SGND
G7
FSET
C6
PHASMD
G4
DIFFP
E8
DIFFN
E9
CLKOUT
G5
MODE-PLLIN
F4
TEMP
J6
INTVCC
H8
EXTVCC
J7
DIFFOUT
F8
R28
0 Ohm
R28
0 Ohm
C10
2.2uF
10V
C10
2.2uF
10V
+
CO12
470uF 4V
7343
+
CO12
470uF 4V
7343
E13
VO2-
E13
VO2-
E11
SW1-2
E11
SW1-2
R21
121K
1% R21
121K
1%
CO17
(OPT)
1210
CO17
(OPT)
1210
CIN10
22uF 25V
1210
CIN10
22uF 25V
1210
R20
0 Ohm
R20
0 Ohm
R22
0 Ohm
2010
R22
0 Ohm
2010
R24
0 Ohm
2010
R24
0 Ohm
2010
E14
SW2-2
E14
SW2-2
+
CO25 470uF 4V
7343
+
CO25 470uF 4V
7343
R31
100K
1%
R31
100K
1%
CIN9
22uF 25V
1210
CIN9
22uF 25V
1210
CO16
(OPT)
1210
CO16
(OPT)
1210
R30
(OPT)
R30
(OPT)
R26
0 Ohm
2010
R26
0 Ohm
2010
C14 (OPT) C14 (OPT)
CO15 100uF 10V 1210 CO15 100uF 10V 1210
+
CO19
470uF 4V 7343
+
CO19
470uF 4V 7343
J5
VOUT/
VOUT2_U2
J5
VOUT/
VOUT2_U2
J6
GND
J6
GND
C12 (OPT) C12 (OPT)
C9
(OPT)
C9
(OPT)
E12
VO2+
E12
VO2+
R36
10K
R36
10K
R35
0 Ohm
R35
0 Ohm
CIN7
22uF 25V
1210
CIN7
22uF 25V
1210
CO38 100uF 10V 1210 CO38 100uF 10V 1210
R61
(OPT)
R61
(OPT)
R27
0 Ohm
R27
0 Ohm
R33
0 Ohm
R33
0 Ohm
C15 (OPT) C15 (OPT)
CO11
100uF 10V 1210
CO11
100uF 10V 1210
CO18 100uF 10V 1210 CO18 100uF 10V 1210
R37 (OPT) R37 (OPT)
C13 (OPT) C13 (OPT)
CO13
(OPT)
1210
CO13
(OPT)
1210
CIN8
22uF 25V
1210
CIN8
22uF 25V
1210
R34 (OPT) R34 (OPT)
R25
10
R25
10
CO14
(OPT)
1210
CO14
(OPT)
1210
R32
0 Ohm
R32
0 Ohm

8
dc2007a_af
DEMO MANUAL DC2007A-A
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D D C C B B A A

COMP RUN
COMP
CLKOUT_U2 CLKOUT_U3
VFB
PGOOD
RUN
VFB TRACK PGOOD
TRACK
COMP
CLKOUT_U2 CLKOUT_U3
RUN VFB PGOOD TRACK
VOUT
INTVCC_U3
VOUT
VIN
EXTVCC
INTVCC_U3
INTVCC_U3
INTVCC_U3
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
34
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
34
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
34
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
C16
(OPT)
C16
(OPT)
CIN14
(OPT)
1210
CIN14
(OPT)
1210
+
CO23
(OPT)
7343
+
CO23
(OPT)
7343
CO27
(OPT) 1210
CO27
(OPT) 1210
CIN13
(OPT)
1210
CIN13
(OPT)
1210
CO28
(OPT) 1210
CO28
(OPT) 1210
CIN12
(OPT)
1210
CIN12
(OPT)
1210
C19
1uF 10V
C19
1uF 10V
C17
(OPT)
C17
(OPT)
E15
SW1-3
E15
SW1-3
U3 (OPT) U3 (OPT)
VOUT1
A1
VOUT1
A2
VOUT1
A3
VOUT1
A4
VOUT1
A5
VOUT1
B1
VOUT1
B2
VOUT1
B3
VOUT1
B4
VOUT1
B5
VOUT1
C1
VOUT1
C2
VOUT1
C3
VOUT1
C4
VFB1
D5
SW1
G2
PGOOD1
G9
COMP1
E6
RUN1
F5
TRACK1
E5
VOUTS1
C5
VOUT2
A8
VOUT2
A9
VOUT2
A10
VOUT2
A11
VOUT2
A12
VOUT2
B8
VOUT2
B9
VOUT2
B10
VOUT2
B11
VOUT2
B12
VOUT2
C9
VOUT2
C10
VOUT2
C11
VOUT2
C12
VFB2
D7
SW2
G11
PGOOD2
G8
COMP2
E7
RUN2
F9
TRACK2
D8
VOUTS2
C8
VIN
M2
VIN
M3
VIN
M4
VIN
M5
VIN
M6
VIN
M7
VIN
M8
VIN
M9
VIN
M10
VIN
M11
VIN
L2
VIN
L3
VIN
L4
VIN
L5
VIN
L6
VIN
L7
VIN
L8
VIN
L9
VIN
L10
VIN
L11
VIN
K2
VIN
K3
VIN
K4
VIN
K9
VIN
K10
VIN
K11
VIN
J2
VIN
J3
VIN
J4
VIN
J9
VIN
J10
VIN
J11
GND
A6
GND
A7
GND
B6
GND
B7
GND
D1
GND
D2
GND
D3
GND
D4
GND
D9
GND
D10
GND
D11
GND
D12
GND
E1
GND
E2
GND
E3
GND
E4
GND
E10
GND
E11
GND
E12
GND
F1
GND
F2
GND
F3
GND
F10
GND
F11
GND
F12
GND
G1
GND
G3
GND
G10
GND
G12
GND
H1
GND
H2
GND
H3
GND
H4
GND
H5
GND
H6
GND
H7
GND
H9
GND
H10
GND
H11
GND
H12
GND
M12
GND
M1
GND
L12
GND
J1
GND
J5
GND
J8
GND
J12
GND
K1
GND
K5
GND
K6
GND
K7
GND
K8
GND
K12
GND
L1
SGND
C7
SGND
D6
SGND
F6
SGND
F7
SGND
G6
SGND
G7
FSET
C6
PHASMD
G4
DIFFP
E8
DIFFN
E9
CLKOUT
G5
MODE-PLLIN
F4
TEMP
J6
INTVCC
H8
EXTVCC
J7
DIFFOUT
F8
+
CO29 (OPT)
7343
+
CO29 (OPT)
7343
CO20 (OPT) 1210 CO20 (OPT) 1210
C18
2.2uF
10V
C18
2.2uF
10V
R42
(OPT)
R42
(OPT)
R39
121K
1% R39
121K
1%
R41
10K
R41
10K
R43
100K
1%
R43
100K
1%
CO22 (OPT)
1210
CO22 (OPT)
1210
R44
(OPT)
R44
(OPT)
CO21 (OPT)
1210
CO21 (OPT)
1210
CIN15
(OPT)
1210
CIN15
(OPT)
1210
CO24 100uF 10V 1210 CO24 100uF 10V 1210
CO26
(OPT) 1210
CO26
(OPT) 1210
CIN11
1uF 25V 1206
CIN11
1uF 25V 1206
R40 0 Ohm R40 0 Ohm
E16
SW2-3
E16
SW2-3

9
dc2007a_af
DEMO MANUAL DC2007A-A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D D C C B B A A

LOAD TRANSIENT CIRCUIT
CLKOUT_U4
CLKOUT_U4
COMP RUN COMP TRACK VFB
PGOOD
RUN VFB TRACK PGOOD
CLKOUT_U3
VFB COMP
CLKOUT_U3
RUN TRACK PGOOD
INTVCC_U4
VOUT
VOUTVIN
EXTVCC
INTVCC_U4
VOUT
VO+
VO-
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
44
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
44
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: [phone]
Milpitas, CA 95035 Phone: [phone]
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
DEMO CIRCUIT 2007A-A
Wednesday, August 07, 2013
44
HIGH EFFICIENCY, POLYPHASE,
N/A
LTM4630EV
MI/RB
Haoran W.
STEP-DOWN POWER MODULE REGULATOR
CIN17
(OPT)
1210
CIN17
(OPT)
1210
E18
SW2-4
E18
SW2-4
R56 0.010 1% 2W
2512
R56 0.010 1% 2W
2512
C28 1uF 10V C28 1uF 10V
R52
(OPT)
R52
(OPT)
CO30 (OPT) 1210 CO30 (OPT) 1210
J7
VOUT
J7
VOUT
CIN19
(OPT)
1210
CIN19
(OPT)
1210
CIN16
(OPT)
1210
CIN16
(OPT)
1210
CO32 (OPT)
1210
CO32 (OPT)
1210
C29
(OPT)
C29
(OPT)
R58
(OPT) 2512
R58
(OPT) 2512
C25 0.1uF C25 0.1uF
U4 (OPT) U4 (OPT)
VOUT1
A1
VOUT1
A2
VOUT1
A3
VOUT1
A4
VOUT1
A5
VOUT1
B1
VOUT1
B2
VOUT1
B3
VOUT1
B4
VOUT1
B5
VOUT1
C1
VOUT1
C2
VOUT1
C3
VOUT1
C4
VFB1
D5
SW1
G2
PGOOD1
G9
COMP1
E6
RUN1
F5
TRACK1
E5
VOUTS1
C5
VOUT2
A8
VOUT2
A9
VOUT2
A10
VOUT2
A11
VOUT2
A12
VOUT2
B8
VOUT2
B9
VOUT2
B10
VOUT2
B11
VOUT2
B12
VOUT2
C9
VOUT2
C10
VOUT2
C11
VOUT2
C12
VFB2
D7
SW2
G11
PGOOD2
G8
COMP2
E7
RUN2
F9
TRACK2
D8
VOUTS2
C8
VIN
M2
VIN
M3
VIN
M4
VIN
M5
VIN
M6
VIN
M7
VIN
M8
VIN
M9
VIN
M10
VIN
M11
VIN
L2
VIN
L3
VIN
L4
VIN
L5
VIN
L6
VIN
L7
VIN
L8
VIN
L9
VIN
L10
VIN
L11
VIN
K2
VIN
K3
VIN
K4
VIN
K9
VIN
K10
VIN
K11
VIN
J2
VIN
J3
VIN
J4
VIN
J9
VIN
J10
VIN
J11
GND
A6
GND
A7
GND
B6
GND
B7
GND
D1
GND
D2
GND
D3
GND
D4
GND
D9
GND
D10
GND
D11
GND
D12
GND
E1
GND
E2
GND
E3
GND
E4
GND
E10
GND
E11
GND
E12
GND
F1
GND
F2
GND
F3
GND
F10
GND
F11
GND
F12
GND
G1
GND
G3
GND
G10
GND
G12
GND
H1
GND
H2
GND
H3
GND
H4
GND
H5
GND
H6
GND
H7
GND
H9
GND
H10
GND
H11
GND
H12
GND
M12
GND
M1
GND
L12
GND
J1
GND
J5
GND
J8
GND
J12
GND
K1
GND
K5
GND
K6
GND
K7
GND
K8
GND
K12
GND
L1
SGND
C7
SGND
D6
SGND
F6
SGND
F7
SGND
G6
SGND
G7
FSET
C6
PHASMD
G4
DIFFP
E8
DIFFN
E9
CLKOUT
G5
MODE-PLLIN
F4
TEMP
J6
INTVCC
H8
EXTVCC
J7
DIFFOUT
F8
+
CO37 (OPT) 7343
+
CO37 (OPT) 7343
C24 0.01uF C24 0.01uF
C23
1uF 10V
C23
1uF 10V
R49
(OPT)
R49
(OPT)
R57 0.010 1% 2W
2512
R57 0.010 1% 2W
2512
CO33 (OPT)
1210
CO33 (OPT)
1210
E19
IOSTEP CLK
E19
IOSTEP CLK
R45
0 Ohm
R45
0 Ohm
R51
100K
1%
R51
100K
1%
R59
(OPT) 2512
R59
(OPT) 2512
Q1
SUD50N04-8M8P-4GE
Q1
SUD50N04-8M8P-4GE
C22
2.2uF
10V
C22
2.2uF
10V
Q2 SUD50N04-8M8P-4GE Q2 SUD50N04-8M8P-4GE
C21
(OPT)
C21
(OPT)
R53
(OPT)
R53
(OPT)
+
CO31
(OPT) 7343
+
CO31
(OPT) 7343
CIN18
(OPT)
1210
CIN18
(OPT)
1210
E20
GND
E20
GND
R48
(OPT)
R48
(OPT)
R46
0 Ohm
R46
0 Ohm
R55
(OPT)
R55
(OPT)
C30
(OPT)
C30
(OPT)
J8
IOSTEP
J8
IOSTEP
CO36
(OPT) 1210
CO36
(OPT) 1210
C26 (OPT) C26 (OPT)
CO34
(OPT)
1210 CO34
(OPT)
1210
R47
121K
1% R47
121K
1%
E17
SW1-4
E17
SW1-4
R54
10K
R54
10K
C27
1uF 10V
C27
1uF 10V
R50
(OPT)
R50
(OPT)
CO35
(OPT) 1210
CO35
(OPT) 1210
C20
(OPT)
C20
(OPT)

10
dc2007a_af
DEMO MANUAL DC2007A-A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ●FAX: [phone] ●www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2013
LT 1013 • PRINTED IN USA
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LT C ) provides the enclosed product(s) under the following AS IS conditions:
This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT
OR EVALUATION PURPOSES ONLY and is not provided by LT C for commercial use. As such, the DEMO BOARD herein may not be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety
measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union
directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date
of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LT C from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or
agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LT C assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LT C currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and
observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LT C applica-
tion engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation