Renesas RTKA211630DE0010BU User manual

Evaluation Board Manual
R16UZ0036EU0101 Rev.1.01 Page 1
Apr 27, 2022 © 2022 Renesas Electronics
The RTKA211630DE0010BU board evaluates the
RAA211630 (HTSSOP version), a DC/DC
synchronous step-down regulator with programmable
switching frequency.
The RAA211630 supports a wide input voltage range
(from 4.5V to 60V) and adjustable output voltage. It
delivers up to continuous 3A output current with
premium load regulation and line regulation
performance.
Features
▪Simple and flexible design
▪4.5V to 60V VIN range
▪Convenient power conversion
Specifications
The following are the design specifications for the
RTKA211630DE0010BU:
▪Input voltage (VIN): 4.5V to 60V
▪Output voltage (VOUT): 3.3V
▪Maximum output current: 3A
Figure 1. Block Diagram
VIN
EN
BST
SW
FB
V
OUT
V
IN
Up to 60V
PGND
R
IN1
R
IN2
C
IN1
C
BOOT
LC
OUT1
22µF
R
FB1
R
FB2
RAA211630
C
OUT2
22µF
EBIAS
FS
VCCAGND
C
VCC
C
IN2
VCC
SS
VCC
PG
RTKA211630DE0010BU

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RTKA211630DE0010BU Evaluation Board Manual
Contents
1. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Operational Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Setup and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Board Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Layout Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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RTKA211630DE0010BU Evaluation Board Manual
1. Functional Description
The RAA211630 (HTSSOP version) is an easy-to-use synchronous Buck switching regulator with integrated
145mΩ(high-side) and 45mΩ(low-side) MOSFETs. The RTKA211630DE0010BU board demonstrates the
operations of RAA211630. The board allows you to evaluate the performance of the part with different application
circuits, and it also provides you a reference for board layout.
The schematic is shown in Figure 4 and PCB layers for reference in Figure 5 through Figure 8. Figure 9 through
Figure 16 show performance data and waveforms take from the evaluation board. See Bill of Materials (BOM) for
the full list of materials used.
1.1 Operational Characteristics
The board input voltage range is from 4.5V to 60V. The output voltage is set to 3.3V by default and can be
changed by R9and R10, as shown in Equation 1:
Renesas recommends using a 20kΩresistor for R10 and choose R9based on Equation 1.
1.2 Setup and Configuration
1. Populate a jumper on JP1(VIN shorted to EN).
2. Connect the power supply to the input terminals VIN(T1) and GND(T2). Connect the load to the output
terminals VOUT(T3) and GND(T4). Make sure the setup is correctly connected before applying any power or
load to the board.
3. Turn on the power supply and the part should start operating.
4. Verify that the output voltage is 3.3V and phase node waveforms can be monitored at J1.
(EQ. 1)
Figure 2. RTKA211630DE0010BU Board Setup
R9R10
Vout 0.8–
0.8
--------------------------
=
+‐
LOAD
+‐
A

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RTKA211630DE0010BU Evaluation Board Manual
2. Board Design
2.1 Layout Guidelines
For detailed layout guidelines reference the Layout Guidelines section in the RAA211630 Datasheet.
Figure 3. RTKA211630DE0010BU Evaluation Board (Top)

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RTKA211630DE0010BU Evaluation Board Manual
2.2 Schematic Diagram
Figure 4. Schematic
ENGINEER: DATE:DRAW N
BY:
DATE:
ZHUANGYAO TANGZHUANGYAO TANG
C2
4.7UF
0.1UF
C6
20K
R10
TP1
0
R3
22UF
C9
0.039UF
C13
62K
R9
JP1
12
100K
R4
T4
4.7UF
C3
R12
0
TBD
C12
R5
0
C10
22UF
TP3
12
J1
1 2
DNP
R11
DNP
R2
T3
C4
0.1UF
R1
DNP
12
J2
12
1UF
C7
47UF
C1
12
R6
DNP
TBD
C11
C5
4.7UF
0
R7
T2
20
R8
TP4
6.8UH
L1
1 2
T1
EPAD PGND PGND PGND VIN EN VCC FS PG
SW SW SW
BST
EBIAS
SS FB
AGND
U1
RAA2116304GSP
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16
17
TP2
22UF
C8
EN
EN
FB
FB
UNNAMED_1_POWERI ND_I15_AA
UNNAMED_1_RAA211630_I 47_11 UNNAMED_1_RAA211630_I 47_12 UNNAMED_1_RAA211630_I 47_13
UNNAMED_1_RAA211630_I 47_7
UNNAMED_1_SMCAP_I23_A
UNNAMED_1_SMRES_I10_A
UNNAMED_1_SMRES_I10_B
UNNAMED_1_SMRES_I 24_B
VCC
VCC VCC
VIN
VOUT
VOUT

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RTKA211630DE0010BU Evaluation Board Manual
2.3 Bill of Materials
Qty Ref Des Description Manufacturer Part Number
1 C13 CAP, SMD, 0603, 39000pF, 25V, 10%, X7R, ROHS Panasonic ECJ-1VB1E393K
3C8, C9,
C10 CAP, SMD, 1210, 22µF, 16V, 10%, X7R, ROHS Murata GRM32ER71C226KE18L
1 C7 CAP, SMD, 0603, 1.0µF, 16V, 10%, X7R, ROHS TDK C1608X7R1C105K
1 C6 CAP, SMD, 0603, 0.1µF, 16V, 10%, X7R, ROHS Murata GCM188R71C104KA37D
1 C5 CAP, SMD, 0603, 4.7µF, 10V, 10%, X7S, ROHS Murata GRM188C71A475KE11D
1 C4 CAP, SMD, 0603, 0.1µF, 100V, 10%, X7R, ROHS Murata GRM188R72A104KA35J
2 C2, C3 CAP, SMD, 1210, 4.7µF, 100V, 10%, X7R, ROHS TDK CNA6P1X7R2A475K250AE
1L1
COIL-PWR INDUCTOR, SMD, 6.6mmx6.4mm, 6.8uH,
20%, 6.5A, ROHS
Wurth
Electronics 74439346068
4T1, T2, T3,
T4
CONN-DBL TURRET, TH, 0.218x0.078 PCB MNT,
TIN/BRASS, ROHS Keystone 1502-1
2J1,J2
CONN-BRD-BRD, 1x2, TH, SOCKET, 1X64 STRIP,
2.54mm, ST Mill-max 310-43-164-41-001000
1 TP3, TP4 CONN-MINI TEST PT, VERTICAL, BLK, ROHS Keystone 5001
1 TP1, TP2 CONN-MINI TEST POINT, VERTICAL, WHITE, ROHS Keystone 5002
1JP1
CONN-HEADER, 1x2, RETENTIVE, 2.54mm, 0.230X
0.120, ROHS BERG/FCI 69190-202HLF
1 R10 RES, SMD, 0603, 20kΩ, 1/10W, 1%, ROHS Various Generic
1 R9 RES, SMD, 0603, 62kΩ, 1/10W, 1%, ROHS Panasonic ERJ-3EKF6202V
1 R8 RES, SMD, 0603, 20Ω, 1/10W, 1%, ROHS Panasonic ERJ-3EKF20R0V
4R3, R5,
R7, R12 RES, SMD, 0603, 0Ω, 1/10W, ROHS Various VARIOUS
1 R4 RES, SMD, 0603, 100kΩ, 1/10W, 1%, ROHS Various VARIOUS
1U1
IC-60V, 3A SWITCHING REGULATOR, 16P, HTSSOP,
ROHS Renesas RAA211630GSP
0C1
CAP, SMD, 12x10, 47µF, 100V, 20%, ALUM.ELEC.,
ROHS Vishay MAL214699904E3
0
C11, C12,
R1, R2,
R6, R11
DO NOT POPULATE N/A N/A

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RTKA211630DE0010BU Evaluation Board Manual
2.4 Board Layout
Figure 5. Top Layer
Figure 6. Second Layer

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RTKA211630DE0010BU Evaluation Board Manual
Figure 7. Third Layer
Figure 8. Bottom Layer

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RTKA211630DE0010BU Evaluation Board Manual
3. Typical Performance Curves
VIN = 24V, VOUT = 3.3V, TA= +25°C, unless otherwise noted.
Figure 9. Efficiency vs Load Figure 10. Load Regulation
Figure 11. Output Ripple at No Load Figure 12. Output Ripple at Full Load
Figure 13. Enable On at Full Load with External SS Figure 14. Enable Off at Full Load with External SS
50
55
60
65
70
75
80
85
90
95
100
0.001 0.01 0.1 1
Efficiency (%)
Output Current (A)
VIN = 7V VIN = 12V
VIN = 24V VIN = 48V
VIN = 60V
3.28
3.29
3.30
3.31
3.32
0.0 0.5 1.0 1.5 2.0 2.5
3.0
Output Voltage (V)
Output Current (A)
VIN = 7V VIN = 12V
VIN = 24V VIN = 48V
VIN = 60V
VOUT 100mV/Div
IL1A/Div
VPHASE 10V/Div
2ms/Div
VOUT 50mV/Div
IL2A/Div
VPHASE 10V/Div
1µs/Div
VOUT 2V/Div
IL2A/Div
VPHASE 20V/Div
EN 5V/Div
PG 5V/Div
4ms/Div
VOUT 2V/Div
IL2A/Div
VPHASE 20V/Div
EN 5V/Div
PG 5V/Div
20µs/Div

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RTKA211630DE0010BU Evaluation Board Manual
4. Ordering Information
5. Revision History
Figure 15. Load Ramp from 0A to 3A Figure 16. Short VOUT and Recovery at Full load (Hiccup)
Part Number Description
RTKA211630DE0010BU RAA211630 (HTSSOP Version) Evaluation Board
Revision Date Description
1.01 Apr 27, 2022 Minor update to Figure 1.
1.00 Apr 20, 2022 Initial release
VIN = 24V, VOUT = 3.3V, TA= +25°C, unless otherwise noted. (Cont.)
VOUT 50mV/Div
IL2A/Div
VPHASE 10V/Div
2ms/Div
VOUT 2V/Div
IL5A/Div
VPHASE 20V/Div
10ms/Div
Short Signal 20V/Div