Texas Instruments TPS25740EVM-741 User manual

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TPS25740EVM-741 and TPS25740AEVM-741 Evaluation Module User
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USB Type-C is a trademark of USB Implementers Forum, Inc.
User's Guide
SLVUAP7A–April 2016–Revised September 2016
TPS25740EVM-741 and TPS25740AEVM-741 Evaluation
Module User Guide
This user’s guide describes the TPS25740 and TPS25740A evaluation module (TPS25740EVM-741 and
TPS25740AEVM-741). The TPS25740EVM-741 and TPS25740AEVM-741 contain evaluation and
reference circuitry for the TPS25740 and TPS25740A, which are dedicated USB Type-C™ Power Delivery
(PD) downstream facing port (DFP) controllers. The TPS25740 and TPS25740A rely on an upstream
converter to output 5 V, 12 V, and 20 V (TPS25740) or 5 V, 9 V, and 15 V (TPS25740A). These EVMs
use an LM5175-based buck boost converter as the power supply for TPS25740 and TPS25740A. The
TPS25740 and TPS25740A portion of the circuit will be very similar in an adapter application where an
AC/DC input power stage is used. Note that this EVM does not support BC1.2 charging. A TPS2514A can
be added to DP and DM lines of the type C connector for BC1.2 charging support. In addition this EVM
features a barrel jack input to allow for easy demonstration. The recommended adapter is listed in the
features section.
Contents
1 Introduction ................................................................................................................... 3
2 Description.................................................................................................................... 4
3 Schematic..................................................................................................................... 5
4 Configuring the EVM ........................................................................................................ 7
5 Operation ..................................................................................................................... 9
6 Test Results .................................................................................................................. 9
7 EVM Assembly Drawings and Layout Guidelines...................................................................... 15
8 Component Placement and Routing Guidelines ....................................................................... 18
9 Bill of Materials ............................................................................................................. 19
List of Figures
1 Block Diagram................................................................................................................ 3
2 LM5175 Buck-Boost Power Supply ....................................................................................... 5
3 TPS25740 DFP .............................................................................................................. 6
4 Power Select Header – J7 ................................................................................................. 8
5 Voltage and Current Select Header – J8................................................................................. 8
6 UFP Plug-In (5 V)............................................................................................................ 9
7 UFP Unplug (5 V)............................................................................................................ 9
8 UFP Unplug (12 V) .......................................................................................................... 9
9 UFP Unplug (20 V) .......................................................................................................... 9
10 5-V to 12-V Transition....................................................................................................... 9
11 5-V to 20-V Transition....................................................................................................... 9
12 12-V to 20-V Transition.................................................................................................... 10
13 12-V to 5-V Transition ..................................................................................................... 10
14 20-V to 5-V Transition ..................................................................................................... 10
15 20-V to 12-V Transition.................................................................................................... 10
16 Start Into Short on Output................................................................................................. 10
17 Start Into Short on Output (Extra 1000 µF Between DCDC_out and GND)........................................ 10
18 Load Step From 0 A to 3 A (12 V) ....................................................................................... 11

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19 Load Step From 0 A to 3 A (20 V) ....................................................................................... 11
20 Load Step From 0 A to 3 A (5 V)......................................................................................... 11
21 Raise VIN With UFP Already Plugged In................................................................................. 11
22 5-V Hot Short on UFP Side............................................................................................... 11
23 12-V Hot Short on UFP Side ............................................................................................. 11
24 20-V Hot Short on UFP Side ............................................................................................. 12
25 Overvoltage at 5-V Contract (With External Supply) .................................................................. 12
26 Overvoltage at 12-V Contract (With External Supply)................................................................. 12
27 Overvoltage at 20-V Contract (With External Supply)................................................................. 12
28 Remove Input Power ...................................................................................................... 12
29 Unplug Then Replug in Quickly .......................................................................................... 12
30 5.5-A Load Step Triggers OCP (5 V).................................................................................... 13
31 5.5-A Load Step Triggers OCP (12 V) .................................................................................. 13
32 5.5-A Load Step Triggers OCP (20 V) .................................................................................. 13
33 Plug In to MacBook (5-V, 12-V, 20-V Advertised) ..................................................................... 13
34 Plug In to MacBook (5-V and 12-V Advertised)........................................................................ 13
35 Unplug MacBook (5-V, 12-V, 20-V Advertised) ........................................................................ 13
36 Unplug MacBook (5-V and 12-V Advertised)........................................................................... 14
37 Power Cycle MacBook Plugged In (5-V, 12-V, 20-V Advertised).................................................... 14
38 Power Cycle With MacBook (5-V and 12-V Advertised).............................................................. 14
39 Top Side Placement ....................................................................................................... 15
40 Top Side Routing........................................................................................................... 16
41 Layer Two Routing......................................................................................................... 16
42 Layer Three Routing....................................................................................................... 17
43 Bottom Side Routing....................................................................................................... 17
List of Tables
1 TPS25740 and TPS25740A EVM Electrical and Performance Specifications at 25°C ............................ 3
2 Connector and LED Functionality ......................................................................................... 7
3 Jumpers Functionality....................................................................................................... 7
4 Test Points.................................................................................................................... 8
5 TPS25740EVM-741 Bill of Materials .................................................................................... 19

LM5175
Buck Boost
(Always ON)
TPS25740 -
USB PD
Controller
USB Type C
Receptacle
VIN (9 V to 16 V) VBUS
CC1
CC2
CTL1
CTL2
DCDC_OUT
Vpwr
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1 Introduction
The TPS25740EVM-741 and TPS25740AEVM-741 allows the user to evaluate performance of the
TPS25740 and TPS25740A in an adapter-like application. Note that the TPS25740 and TPS25740A are
powered from the output of the DC/DC converter and do not require an external LDO. The upstream
converter remains ON at all times to ensure that the TPS25740 and TPS25740A remain powered and can
detect the UFP connection.
Figure 1. Block Diagram
1.1 Features
The TPS25740x features include:
• Type C PD communication protocol via CC1 and CC2 pins.
• Variable output voltage depending on request.
– 5 V, 12 V, and 20 V for TPS25740EVM-741
– 5 V, 9 V, and 15 V for TPS25740AEVM-741
• Up to 5-A output current for all voltage levels. Default is 3 A.
• Smooth voltage transitions per USB PD specification.
• Barrel jack input. (The ETSA190342UDC-P5P-SZ adapter has been tested with the EVM.)
1.2 Applications
The TPS25740x can be used in the following applications:
• Automotive USB ports
• Power banks
• USB power delivery adaptors
1.3 Electrical Specifications
Table 1 lists the EVM electrical specifications.
Table 1. TPS25740 and TPS25740A EVM Electrical and Performance Specifications at 25°C
Characteristic TPS25740EVM-741 TPS25740AEVM-741
Input voltage range (Recommended) 9 V to 16 V 9 V to 16 V
Input voltage range (Absolute Maximum) 0 V to 40 V 0 V to 40 V
Operating output current Default: 3 A Default: 3 A
Configurable to 5 A Configurable to 5 A
Overcurrent protection Default: 4.2 A Default: 4.2 A
Configurable to 6.3 A Configurable to 6.3 A
Output voltages 5 V, 12 V, 20 V 5 V, 9 V, 15 V
UVLO rising on input 7.75 V 7.75 V
UVLO falling on input 7.25 V 7.25 V
Advertised voltages 5 V, 12 V, 20 V 5 V, 9 V, 15 V
Advertised current 3 A (default) 3 A (default)

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2 Description
Referring to the schematic in Figure 2 and Figure 3, a 12-V DC input is applied at the J1/J3 terminals or
J4 connector. The voltage at the DCDC_OUT node is regulated by the LM5175PWP buck-boost regulator
(U1) and associated circuitry. This provides a nominal 5-V, 5-A output for the TPS25740/TPS25740A (U2)
and associated output load.
A type C upstream facing port (UFP) is plugged in at J9. When TPS25740/TPS25740A detects the UFP
via CC1 or CC2 then it will activate Q6/Q10 with the GDNG signal. This will apply the default VBUS
voltage of 5 V at J9 to the UFP. A USB PD capable device can now request the power delivery
capabilities from the TPS25740/TPS25740A which are programmed by J7 and J8. Once the UFP knows
the voltage capabilities of the DFP then it can now request a different VBUS voltage.
The voltage change request gets processed by the TPS25740/TPS25740A and is relayed to the LM5175
regulator through the CTL1 and CTL2 pins. R21 and R24 program the default 5-V output at DCDC_OUT.
R22 and R19 are switched in by CTL1 and CTL2 respectively and are placed in parallel with R24 to
change the feedback voltage regulation point. Capacitors C31 and C32 provide slew rate control in order
to comply with the USB PD specification.
For more information and detailed design information, refer to the TPS25740/TPS25740A datasheet,
(SLVSDG8).

12V to 24V (Tip +)
GND
VIN
1
3
2
J4
GND
0.1µF
C15
VCC
4.7µH
L1
10
R2
64.9k
R12
93.1k
R11
R7
0
DNP
VCC
10
R6
130k
R1
4.7µF
C37
4.7µF
C38
GND
4.7µF
C33
68µF
C9
4.7µF
C36
LDRV2
BIAS
BOOT1
BOOT2
LDRV1
J1
VIN
VIN
VINSNS
MODE
DITH
SS
COMP
J3
GND
5V, 9V, 12V, 15V, or 20V Output @ 5A
30V
D1
VCC
10
R3
100µF
C41
0.22µF
C1
0.22µF
C8
100pF
C10
0.22µF
C16
C12
100p
DNP
4.7µF
C21
4.7µF
C18
GND
TP6
SYNC
HDRV1_N
LDRV1
HDRV1_P HDRV2_P
HDRV2_N
LDRV2
10
R32
100pF
C3
SYNC
100V
D2
100V
D3
TP8
EN_DCDC
GND
GND
GND
EN
1
VIN
2
VINSNS
3
MODE
4
DITH
5
RT/SYNC
6
SLOPE
7
SS
8
COMP
9
AGND
10
FB
11
VOSNS
12
ISNS-
13
ISNS+
14
CSG 15
CS 16
PGOOD 17
SW2 18
HDRV2 19
BOOT2 20
LDRV2 21
PGND 22
VCC 23
BIAS 24
LDRV1 25
BOOT1 26
HDRV1 27
SW1 28
PAD
U1 LM5175PWP
1.0k
R10
0.027µF
C13
0
RH2
0
RL1 GND
DCDC_OUT
GND
LDRV1
LDRV2
HDRV1_P
HDRV2_P
HDRV2_N
0.1µF
C4
HDRV1_N 0.22µF
C2
GND
BIAS
GND
100
R13
100
R15
CS_P
CS_N
DCDC_OUT
9.53k
R24
49.9k
R21
GND
TP7
PGOOD
1µF
C6
TP1
VIN
TP3
GND
TP2
DCDC_OUT
TP4
GND
0
RL2
220pF
C14
FB
VIN_IC
NT1
Net-Tie
NT2
Net-Tie
VOSNS
SLOPE
9V to 16V Input, 42V Maximum
47
R18
23.7k
R4
GND
7,8
1,2,3
5,6,
Q2
7,8
1,2,3
5,6,
Q4
7,8
1,2,3
5,6,
Q1
7,8
1,2,3
5,6,
Q3
GND GND
VRS
4.7µF
C34
4.7µF
C35
4.7µF
C39
4.7µF
C40
Q5
DNP
TP5
UFPb
CTL2
CTL1
UFPb
VOSNS
0.006
RS1
2.94
RH1
1µF
C19
DNP
1µF
C20
DNP
220pF
C17
0.047µF
C11
510
R17
DNP
VBUS 100k
R44
DNP
200k
R16
DNP
1
3
2
30V
D9
220pF
C24
GND
Q9
DNP
0
R20
0
R23
0
R40
5.62k
R19
0.022µF
C31
0.1µF
C32
200k
R8
ENMVb
GND
1µF
C42
DNP
R49
DNP 0
R50
DNP
49.9k
R55
PGOOD_DCDC
4.99k
R22
( R19: 9.76 k for TPS25740A )Ω
( R22: 6.65 k for TPS25740A )Ω
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3 Schematic
Figure 2 and Figure 3 illustrate the EVM schematic.
Figure 2. LM5175 Buck-Boost Power Supply

GND
A1
SSTXP1
A2 SSTXN1
A3
VBUS
A4
CC1
A5
DP1
A6 DN1
A7
RFU1
A8
VBUS
A9
SSRXN2
A10
SSRXP2
A11
GND
A12 GND B1
SSTXP2 B2
SSTXN2 B3
VBUS B4
CC2 B5
DP2 B6
DN2 B7
RFU2 B8
VBUS B9
SSRXN1 B10
SSRXP1 B11
GND B12
Shield
S1
Shield
S2
Shield
S3
Shield
S4
Shield S5
Shield S6
Shield S7
Shield S8
J9
898-43-024-90-310000
10µF
C23
GND
Vbus
VTX
VAUX
DVDD
GND
0.1µF
C26
0.1µF
C27
0.22µF
C25
40V
D4
TP12
CTL2
TP11
CTL1
120
R5
0.1µF
C28
1
3
2
NC 20V
D5
DNP
499
R27
DNP
UFPb
J2
VBUS
CC1
CC2
TP9
VBUS
HIPWR
PSEL
ENMVb
TP15
GND
0.005
1%
R31
TP14
DSCG
CTL1 CTL2
UFPb
TP13
GDNG
0.1µF
C7
GND
Q8 Q7
3.2V
D6
3.2V
D7
3.2V
D8
100k
R36
100k
R37
49.9k
R38 49.9k
R39
NT3
Net-Tie
NT4
Net-Tie
0
R42
DNP
VBUS
CC1 CC2
GND
5.1k
R9
5.1k
R34
5.1k
R35
0.33µF
C22
7,8 1,2,3
5,6,
Q6
24.9
R46
100
R45
DNDN
DPDP
0
R33
VIN
1.00k
R48
10.0
R53
J5
GND
GDNS
GDNG
PCTRL
GND
GDb
VPWR
DSCG
ISNS
560pF
C29
560pF
C30
1 2
3 4
5 6
7 8
J8
100kR28
100kR30
GND HDVDD
HIPWR
1 2
3 4
5 6
7 8
J7
100kR29GND
PCTRL
VAUX
PSEL
100kR25 HDVDD
PVBUS
J6
DCDC_OUT
220k
R41
220k
R43
GND
0
R51 ENMV1bENMVb
7,8
1,2,3
5,6,
Q10
ENMVb
499
R52
TP10
VPWR
HDVDD
10.0
R47
0.01µF
C5
24.9k
R54
TP16
GND
221k
R14
137k
R26
4.7µF
C43
DNP
DCDC_OUT VIN VBUS
VTX
1
CC1
2
CC2
3
GND 4
HIPWR 5
CTL1
6
CTL2
7
EN12V 8
NC
9
NC
10
UFP 11
PSEL 12
DVDD
13
PCTRL 14
GD
15
VAUX
16
VDD
17
AGND 18
ISNS 19
VPWR
20
VBUS
21
GDNG 22
GDNS 23
DSCG 24
PAD 25
U2
TPS25740RGER
TPS25740ARGER
or
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Figure 3. TPS25740 DFP

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4 Configuring the EVM
4.1 Physical Access
Table 2 lists the TPS25740EVM-741 connector and LED functionality, Table 3 describes jumper
functionality, and Table 4 describes the test point availability.
Table 2. Connector and LED Functionality
Connector Label Description
J1 VIN Power bus input. Apply bus input voltage between J1 and J3.
J2 VBUS Output voltage that is applied to the VBUS of the USB type C cable. J2 along with J5 can be
used to apply an external load.
J3 GND Power bus input return connector. Apply bus input voltage between J1 and J3.
J4 J4 Barrel jack input from an AC to DC power supply. The center tip is positive.
J5 GND Switch bus output return connector. Apply the load between J2 and J5
J9 J9 Type C receptacle.
D6 DCDC_OUT This Green LED indicates when the output of the DC/DC converter is above approximately 3 V.
D7 D7 This Green LED indicates when an input voltage is present at J1/J3 or J4.
D8 D8 This Green LED indicates when VBUS is above approximately 3 V.
Table 3. Jumpers Functionality
Jumper Label Description
J7 PSEL/PCTRL Used to program the PSEL and PCTRL pins of the TPS25740 and
TPS25740A. This advertises the power level to the UFP. Install a single
shunt in the P1, P2, P3, or P4 position. Optionally, a second shunt can be
installed in the PCTRL position. The position locations are shown in Figure 4
and also on the PCB silkscreen near J7.
spacP1 position: PSEL = 93 W
spacP2 position (default): PSEL = 65 W
spacP3 position: PSEL = 45 W
spacP4 position: PSEL = 36 W
spacPCTRL position (shunt installed): PMAX = PSEL/2
spacPCTRL position (no shunt installed-default): PMAX = PSEL
J8 HIPWR/ENMVb Used to program the HIPWR and EN12Vb/EN9Vb pins of the TPS25740 and
TPS25740A. This advertises maximum voltage and maximum current to the
UFP. Install a single shunt in the H1, H2, H3, or H4 position. Optionally, a
second shunt can be installed in the ENMVb position. The position locations
are shown in Figure 5 and also on the PCB silkscreen near J8. V1 = 5 V, V2
= 9 V or 12 V, V3 = 15 V or 20 V
spacENMVb position (shunt installed-default): V1 and V2
spacENMVb position (no shunt installed): No V2
spacH1 position: V3 and IMAX = 5A (OCP = 6.3 A)
spacH2 position (default): V3 and IMAX = 3A (OCP = 4.2A)
spacH3 position: No V3 and IMAX = 5A (OCP = 6.3A)
spacH4 position: No V3 and IMAX = 3A (OCP = 4.2A)
Advertised current at Vx: Ix = min (PMAX/Vx, IMAX)
J6 LED Power Used to disconnect the LED power. This allows for more accurate
measurement of the board’s efficiency especially at light loads or when UFP
is disconnected.

EN12Vb
Or
EN9Vb
HIPWR
DVDD
H1 H2
H3 H4
J8
100 kŸ
220 kŸ
100 kŸ
HIPWR DVDD
DVDD
PCTRL
PSEL
VAUX
DVDD
PSEL
P1 P2
P3 P4
J7
100 kŸ
100 kŸ
220 kŸ
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Table 4. Test Points
J7 J8 Description
TP1 VIN Input voltage
TP2 DCDC_OUT Output of the Buck Boost and input to the TPS25740 and TPS25740A circuitry.
TP3/TP4 GND Input ground test points.
TP15/TP16 GND Output ground test points.
TP6 SYNC Capacitive coupled measurement of SYNC pin.
TP7 PGOOD Power good output of the DC/DC. High = power good
TP5 UFPb Active low signal which is asserted when a UFP is connected on the other side of the cable.
TP11, TP12 CTL1, CTL2 Control signals coming from the TPSP25740 and TPS25740A that adjust the output voltage of the buck
boost converter based on the following table:
Voltage contained in PDO requested by UFP CTL2 State CTL1 State
5 V High-Z High-Z
12 V or 9 V Low High-Z
20 V or 15 V Low Low
TP13 GDNG NFET gate drive signal
TP9 VBUS Voltage that is applied to the Vbus of the type C receptacle and cable.
TP10 VPWR Voltage tied to VPWR, which is used to power the TPS2574x chip.
TP14 DSCG The TPS25740 and TPS25740A discharge VBUS with this pin.
TP8 EN_DCDC Tied to the enable pin of the DC DC.
4.2 Setting Advertisement Levels with J7 and J8
The advertised power, voltages, and currents can be configured using J7 and J8 as shown in Figure 4 and
Figure 5.
Figure 4. Power Select Header – J7 Figure 5. Voltage and Current Select Header –
J8
4.3 Equipment Setup
The following equipment is required to set up the EVM:
• Power supply capable of 12 V and preferably 10 A (120 W)
• Resistive or electronic load
• PD capable UFP to negotiate voltages, in this case the TPS25720 EVM was used
• Type C cable

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5 Operation
Use the following steps for EVM operation:
1. Turn on the input power supply to 12 V.
2. Connect the UFP to the TPS25740 and TPS25740A EVM through a type C cable.
3. Make desired voltage requests from the UFP to TPS25740 and TPS25740A EVM.
4. Connect load between J2 and J5 as desired to test efficiency and other performance.
6 Test Results
This section provides typical performance waveforms for the TPS25740EVM-741 and TPS25740AEVM-
741 with VIN = 12 V at no load (unless otherwise specified). Actual performance data is affected by
measurement techniques and environmental variables; therefore, these curves are presented for
reference and may differ from actual results obtained.
Figure 6. UFP Plug-In (5 V) Figure 7. UFP Unplug (5 V)
Figure 8. UFP Unplug (12 V) Figure 9. UFP Unplug (20 V)

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Figure 10. 5-V to 12-V Transition Figure 11. 5-V to 20-V Transition
Figure 12. 12-V to 20-V Transition Figure 13. 12-V to 5-V Transition
Figure 14. 20-V to 5-V Transition Figure 15. 20-V to 12-V Transition

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Figure 16. Start Into Short on Output Figure 17. Start Into Short on Output (Extra 1000 µF
Between DCDC_out and GND)
Figure 18. Load Step From 0 A to 3 A (12 V) Figure 19. Load Step From 0 A to 3 A (20 V)
Figure 20. Load Step From 0 A to 3 A (5 V) Figure 21. Raise VIN With UFP Already Plugged In

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Figure 22. 5-V Hot Short on UFP Side Figure 23. 12-V Hot Short on UFP Side
Figure 24. 20-V Hot Short on UFP Side Figure 25. Overvoltage at 5-V Contract (With External
Supply)
Figure 26. Overvoltage at 12-V Contract (With External
Supply) Figure 27. Overvoltage at 20-V Contract (With External Supply)

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Figure 28. Remove Input Power Figure 29. Unplug Then Replug in Quickly
Figure 30. 5.5-A Load Step Triggers OCP (5 V) Figure 31. 5.5-A Load Step Triggers OCP (12 V)
Figure 32. 5.5-A Load Step Triggers OCP (20 V) Figure 33. Plug In to MacBook (5-V, 12-V, 20-V
Advertised)

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Figure 34. Plug In to MacBook (5-V and 12-V Advertised) Figure 35. Unplug MacBook (5-V, 12-V, 20-V Advertised)
Figure 36. Unplug MacBook (5-V and 12-V Advertised) Figure 37. Power Cycle MacBook Plugged In (5-V, 12-V,
20-V Advertised)
Figure 38. Power Cycle With MacBook (5-V and 12-V Advertised)

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7 EVM Assembly Drawings and Layout Guidelines
Figure 39 through Figure 43 show component placement and layout of the EVM.
Figure 39. Top Side Placement

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Figure 40. Top Side Routing
Figure 41. Layer Two Routing

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Figure 42. Layer Three Routing
Figure 43. Bottom Side Routing

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8 Component Placement and Routing Guidelines
This section contains component placement instructions and EVM layout guidelines.
8.1 Power Pin Bypass Capacitors
Place the power pin bypass capacitors as instructed in the following:
•C28: Place close to pin 20 (VPWR) and connect with low inductance traces and vias according to
Figure 39.
•C25: Place close to pin 13 (DVDD) and connect with low inductance traces and vias according to
Figure 39.
•C26: Place close to pin 16 (VAUX) and connect with low inductance traces and vias according to
Figure 39
•C27: Place close to pin 1 (VTX) and connect with low inductance traces and vias according to
Figure 39.
8.2 Supporting Components
The following list provides instructions for installing the other components:
•CRX: Place C29 and C30 inline with the CC1 and CC2 traces as shown in Figure 39. These should be
placed within one inch from the Type C connector. Minimize stubs and tees from on the trace routes.
•Q1: Place Q6/Q10 in a manner such that power flows uninterrupted from Q6/Q10 drain to the Type C
connector VBUS connections. Provide adequate copper plane from Q6/Q10 drain and source to the
interconnecting circuits.
•RS: Place R31, as shown in Figure 39, to facilitate uninterrupted power flow to the Type C connector.
Orient RS for optimal Kelvin sense connection/routing back to the TPS25740/TPS25740A. In high
current applications where the power dissipation is over 250 mW, provide an adequate copper feed to
the pads of R31.
•RG: Place R47 and R53 near Q6 and Q10 as shown in Figure 39. Minimize stray leakage paths as the
GDNG sourcing current could be affected.
•RSLEW/CSLEW: Place R48 and C5 near R47/R53 as shown in Figure 39.
•R5: Place on top of the VBUS copper route and connect to the DSCG pin with a 15-mil trace.
•RF/CF: When required, place R46 and C22 as shown in Figure 39 to facilitate the Kelvin sense
connection back to the TPS25740/TPS25740A.
•CVBUS/DVBUS: Place C23 and D4 within one inch of the Type C connector and connect them to
VBUS and GND using adequate copper shapes.

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9 Bill of Materials
Table 5 lists the EVM BOM.
Table 5. TPS25740EVM-741 Bill of Materials
Designator Quantity
(TPS25740) Quantity (TPS25740A) Value Description Package Reference Part Number Manufacturer Alternate Part Number Alternate Manufacturer
C1, C2 2 2 0.22uF CAP, CERM, 0.22uF, 50V, +/-10%, X7R, 0603 0603 C1608X7R1H224K080AB TDK
C3, C10 2 2 100pF CAP, CERM, 100 pF, 50 V, +/- 5%, C0G/NP0, 0603 0603 GRM1885C1H101JA01D Murata
C4, C15 2 2 0.1uF CAP, CERM, 0.1 µF, 25 V, +/- 5%, X7R, 0603 0603 06033C104JAT2A AVX
C5 1 1 0.01uF CAP, CERM, 0.01 µF, 50 V, +/- 10%, X7R, AEC-
Q200 Grade 1, 0402 0402 CGA2B3X7R1H103K050BB TDK
C6 1 1 1uF CAP, CERM, 1uF, 16V, +/-10%, X7R, 0603 0603 GRM188R71C105KA12D Murata
C7, C26, C27, C28 4 4 0.1uF CAP, CERM, 0.1 µF, 50 V, +/- 10%, X7R, 0402 0402 C1005X7R1H104K TDK
C8, C16 2 2 0.22uF CAP, CERM, 0.22 µF, 50 V, +/- 10%, X7R, 0603 0603 C1608X7R1H224K080AB TDK
C9 1 1 68uF CAP, AL, 68 µF, 63 V, +/- 20%, 0.65 ohm, SMD SMT Radial F EEE-FK1J680UP Panasonic
C11 1 1 0.047uF CAP, CERM, 0.047 µF, 25 V, +/- 10%, X7R, 0603 0603 C1608X7R1E473K TDK
C13 1 1 0.022uF CAP, CERM, 0.022 µF, 50 V, +/- 10%, X7R, 0603 0603 GRM188R71H223KA01D Murata
C14, C17 2 2 220pF CAP, CERM, 220 pF, 50 V, +/- 5%, C0G/NP0, 0603 0603 GRM1885C1H221JA01D Murata
C18, C21, C33, C34,
C35, C36, C37, C38,
C39, C40
10 10 4.7uF CAP, CERM, 4.7 µF, 50 V, +/- 10%, X7R, 1206 1206 GRM31CR71H475KA12L Murata
C22 1 1 0.33uF CAP, CERM, 0.33 µF, 16 V, +/- 10%, X7R, 0603 0603 GRM188R71C334KA01D Murata
C23 1 1 10uF CAP, CERM, 10 µF, 25 V, +/- 10%, X7R, 1210 1210 12103C106KAT2A AVX
C24 1 1 220pF CAP, CERM, 220 pF, 100 V, +/- 10%, X7R, 0603 0603 06031C221KAT2A AVX
C25 1 1 0.22uF CAP, CERM, 0.22 µF, 6.3 V, +/- 20%, X5R, 0402 0402 C1005X5R0J224M TDK
C29, C30 2 2 560pF CAP, CERM, 560 pF, 50 V, +/- 5%, C0G/NP0, 0402 0402 GRM1555C1H561JA01D Murata
C31 1 1 0.022uF CAP, CERM, 0.022 µF, 50 V, +/- 10%, X7R, 0603 0603 C0603C223K5RACTU Kemet
C32 1 1 0.1uF CAP, CERM, 0.1 µF, 25 V, +/- 10%, X5R, 0603 0603 06033D104KAT2A AVX
C41 1 1 100uF CAP, AL, 100 µF, 50 V, +/- 20%, 0.34 ohm, SMD SMT Radial F EEE-FK1H101P Panasonic
D1 1 1 30V Diode, Schottky, 30V, 0.2A, SOD-323 SOD-323 BAT54HT1G ON
Semiconductor
D2, D3 2 2 100V Diode, Switching, 100V, 0.25A, SOD-523 SOD-523 BAS516,115 NXP
Semiconductor
D4 1 1 40V Diode, Schottky, 40 V, 3 A, SMA SMA B340A-13-F Diodes Inc.
D6 1 1 DCDC_OUT LED, Green, SMD LED_0603 150060GS75000 Wurth Elektronik
D7 1 1 VIN LED, Green, SMD LED_0603 150060GS75000 Wurth Elektronik
D8 1 1 VBUS LED, Green, SMD LED_0603 150060GS75000 Wurth Elektronik
D9 1 1 30V Diode, Schottky, 30 V, 0.2 A, SOT-23 SOT-23 BAT54SLT1G ON
Semiconductor
H1, H2, H3, H4 4 4 Machine Screw, Round, #4-40 x 1/4, Nylon, Philips
panhead Screw NY PMS 440 0025 PH B&F Fastener Supply
H5, H6, H7, H8 4 4 Standoff, Hex, 0.5"L #4-40 Nylon Standoff 1902C Keystone - -
J1, J2, J3, J5 4 4 Standard Banana Jack, Uninsulated, 5.5mm Keystone_575-4 575-4 Keystone
J4 1 1 Connector, DC Jack 2.1X5.5 mm, TH Conn, DC Jack,
pin 2mm Dia. PJ-202AH CUI Inc.

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Table 5. TPS25740EVM-741 Bill of Materials (continued)
Designator Quantity
(TPS25740) Quantity (TPS25740A) Value Description Package Reference Part Number Manufacturer Alternate Part Number Alternate Manufacturer
J6 1 1 Header, 100mil, 2x1, Gold with Tin Tail, SMT 2x1 Header TSM-102-01-L-SV Samtec
J7, J8 2 2 Header, 2.54mm, 4x2, Gold, SMT Header, 2.54mm,
4x2, SMT TSM-104-01-L-DV Samtec
J9 1 1 Connector, Receptacle, USB Type C, R/A, TH Connector,
Receptacle, USB
Type C, R/A, TH
898-43-024-90-310000 Mill-Max
L1 1 1 4.7uH Inductor, Shielded Drum Core, Ferrite, 4.7 µH, 15.5
A, 0.0064 ohm, SMD 12.1x9.5x11.4mm 7443320470 Wurth Elektronik
LBL1 1 1 Thermal Transfer Printable Labels, 0.650" W x 0.200"
H - 10,000 per roll PCB Label 0.650"H x
0.200"W
THT-14-423-10 Brady - -
Q1, Q2, Q3, Q4 4 4 60V MOSFET, N-CH, 60 V, 17 A, PG-TSDSON-8 PG-TSDSON-8 BSZ042N06NS Infineon
Technologies None
Q6, Q10 2 2 30V MOSFET, N-CH, 30 V, 14 A, SON 3.3x3.3mm SON 3.3x3.3mm CSD17578Q3A Texas
Instruments None
Q7, Q8 2 2 60V MOSFET, N-CH, 60 V, 0.17 A, SOT-23 SOT-23 2N7002-7-F Diodes Inc. None
R1 1 1 130k RES, 130 k, 5%, 0.1 W, 0603 0603 CRCW0603130KJNEA Vishay-Dale
R2, R3, R6, R32 4 4 10 RES, 10, 5%, 0.1 W, 0603 0603 CRCW060310R0JNEA Vishay-Dale
R4 1 1 23.7k RES, 23.7 k, 1%, 0.1 W, 0603 0603 CRCW060323K7FKEA Vishay-Dale
R5 1 1 120 RES, 120 ohm, 5%, 0.25W, 1206 1206 CRCW1206120RJNEA Vishay-Dale
R8 1 1 200k RES, 200 k, 1%, 0.1 W, 0603 0603 CRCW0603200KFKEA Vishay-Dale
R9, R34, R35 3 3 5.1k RES, 5.1 k, 5%, 0.125 W, 0805 0805 CRCW08055K10JNEA Vishay-Dale
R10 1 1 3.3k RES, 3.3 k, 5%, 0.1 W, 0603 0603 CRCW06033K30JNEA Vishay-Dale
R11 1 1 93.1k RES, 93.1 k, 1%, 0.1 W, 0603 0603 CRCW060393K1FKEA Vishay-Dale
R12 1 1 64.9k RES, 64.9 k, 1%, 0.1 W, 0603 0603 CRCW060364K9FKEA Vishay-Dale
R13, R15 2 2 100 RES, 100, 1%, 0.1 W, 0603 0603 CRCW0603100RFKEA Vishay-Dale
R14 1 1 221k RES, 221 k, 1%, 0.063 W, 0402 0402 CRCW0402221KFKED Vishay-Dale
R18 1 1 47 RES, 47, 5%, 0.1 W, 0603 0603 CRCW060347R0JNEA Vishay-Dale
R19 1 0 5.62k RES, 5.62 k, 1%, 0.1 W, 0603 0603 CRCW06035K62FKEA Vishay-Dale
R19 0 1 9.76k RES, 9.76 k, 1%, 0.1 W, 0603 0603 CRCW06039K76FKEA Vishay-Dale
R20, R23, R40 3 3 0 RES, 0, 5%, 0.1 W, 0603 0603 CRCW06030000Z0EA Vishay-Dale
R21, R55 2 2 49.9k RES, 49.9 k, 1%, 0.1 W, 0603 0603 CRCW060349K9FKEA Vishay-Dale
R22 1 0 4.99k RES, 4.99 k, 1%, 0.1 W, 0603 0603 CRCW06034K99FKEA Vishay-Dale
R22 0 1 6.65k RES, 6.65 k, 1%, 0.1 W, 0603 0603 CRCW06036K65FKEA Vishay-Dale
R24 1 1 9.53k RES, 9.53 k, 1%, 0.1 W, 0603 0603 CRCW06039K53FKEA Vishay-Dale
R25, R28, R29, R30,
R36, R37 6 6 100k RES, 100 k, 5%, 0.063 W, 0402 0402 CRCW0402100KJNED Vishay-Dale
R26 1 1 137k RES, 137 k, 1%, 0.063 W, 0402 0402 CRCW0402137KFKED Vishay-Dale
R31 1 1 0.005 RES, 0.005, 1%, 0.5 W, 1206 1206 WSL12065L000FEA18 Vishay-Dale
R33, R51 2 2 0 RES, 0, 5%, 0.063 W, 0402 0402 RC0402JR-070RL Yageo America
R38, R39 2 2 49.9k RES, 49.9 k, 1%, 0.063 W, 0402 0402 CRCW040249K9FKED Vishay-Dale
R41, R43 2 2 220k RES, 220 k, 5%, 0.063 W, 0402 0402 CRCW0402220KJNED Vishay-Dale
R45 1 1 100 RES, 100, 5%, 0.063 W, 0402 0402 CRCW0402100RJNED Vishay-Dale