Renesas RTKA211630DE0000BU User manual

Evaluation Board Manual
R16UZ0037EU0100 Rev.1.00 Page 1
Apr 20, 2022 © 2022 Renesas Electronics
The RTKA211630DE0000BU board evaluates the
RAA211630 (QFN 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
can deliver 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
RTKA211630DE0000BU:
▪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
5V
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
RTKA211630DE0000BU

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RTKA211630DE0000BU 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
3. Typical Performance Graphs (if required) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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RTKA211630DE0000BU Evaluation Board Manual
1. Functional Description
The RAA211630 (QFN version) is an easy-to-use synchronous Buck switching regulator with integrated 115mΩ
(high-side) and mΩ(low-side) MOSFETs. The RTKA211630DE0000BU board demonstrates the operations of
RAA211630 (QFN version). It allows you to evaluate the performance of the part with different application circuits.
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 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. RTKA211630DE0000BU Board Setup
R9R10
Vout 0.8–
0.8
--------------------------
=
+‐LOAD
+‐
A

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RTKA211630DE0000BU 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. RTKA211630DE0000BU Evaluation Board (Top)

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RTKA211630DE0000BU Evaluation Board Manual
2.2 Schematic Diagram
Figure 4. Schematic
TITLE: ENGINEER:
RELEASED BY:
DRAW N BY:
DATE: DATE:
ZHUANGYAO TANG
20 PIN QFN RAA21163
ZHUANGYAO TANG
TP1
JP1
12
R2
DNP
R1
DNP
C1
47UF
12
T2 T1
C2
4.7UF
TP3
C3
4.7UF
C4
0.1UF
TP4
C5
4.7UF
TP2
0
R3
PGND
EN VIN VIN
VCC
EBIAS
SW
BST
FB
VIN
AGND
PG
FS
RAA2116304GNP
U1
1
2
3 4
5 6
7
8
9
10
11 12
13
14
15
16
17
18
19
20
R4
100K
R5
0
DNP
R6
C7
1UF
C6
0.1UF
R7
0
L1
6.8UH
1 2
12
J1
1 2
C8
22UF
C9
22UF
T4
C10
22UF
T3
12
J2
12
C11
TBD
R8
20
R10
20K
R9
62K
C12
TBD
R11
DNP
EN
EN
FB
FB
UNNAMED _1_POWERIN D_I15_AA
UNNAMED_1_RAA211630_I1_4 UNNAMED_1_RAA211630_I1_5
UNNAMED_1_RAA211630_I1_8
UNNAMED_1_RAA211630_I1_9
UNNAMED_1_SMCAP_I23_A
UNNAMED_1_SMRES_I10_B
UNNAMED_1_SMR ES_I24_B
VCC
VCC
VIN
VOUT
VOUT

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RTKA211630DE0000BU Evaluation Board Manual
2.3 Bill of Materials
Qty Ref Des Description Manufacturer Part Number
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, 6.8µH, 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
3R3, R5,
R7 RES, SMD, 0603, 0Ω, 1/10W, ROHS Various Generic
1 R4 RES, SMD, 0603, 100kΩ, 1/10W, 1%, ROHS Various Generic
1U1
IC-60V, 3A SWITCHING REGULATOR, 16P, HTSSOP,
ROHS Renesas RAA211630GSP
0 C1 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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2.4 Board Layout
Figure 5. Top Layer
Figure 6. Second Layer

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RTKA211630DE0000BU Evaluation Board Manual
Figure 7. Third Layer
Figure 8. Bottom Layer

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RTKA211630DE0000BU Evaluation Board Manual
3. Typical Performance Graphs (if required)
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 Internal SS Figure 14. Enable Off at Full Load with Internal 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
3.26
3.27
3.28
3.29
3.30
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
400µs/Div
VOUT 2V/Div
IL2A/Div
VPHASE 20V/Div
EN 5V/Div
PG 5V/Div
20µs/Div

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RTKA211630DE0000BU 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
RTKA211630DE0000BU RAA211630 (QFN Version) Evaluation Board
Revision Date Description
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