Renesas RTKA223012DR0010BU User manual

Demonstration Board Manual
X0119847 Rev.1.0 Page 1
Mar 10, 2021 © 2021 Renesas Electronics
The RAA223012 demonstration boards
(RTKA223012DR0010BU and
RTKA223012DR0020BU) are high voltage Buck
converters that demonstrate low-cost high
performance non-isolated AC/DC conversion from a
universal input of 85VAC to 265VAC, to a 5V output
with the output current up to 150mA.
The board has built-in overcurrent, short-circuit, input
brownout, and over-temperature protection, and is
designed on a compact PCB with a low-cost
half-wave input rectification. It is pre-compliant with
conducted and radiated EMI requirements by
EN55022/CISPR 22 and the 1.5kV surge test by
IEC61000-4-5 standard.
RTKA223012DR0010BU comes with a RAA223012
in SO8 package. RTKA223012DR0020BU comes
with a RAA223012 in SOT23-5 package.
Features
▪Universal input range
▪Compact PCB with low-cost external components
▪EMI compliance for EN55022/CISPR22
▪Surge test compliance to IEC61000-4-5 up to
1.5kV
▪Standby power less than 10mW
▪No audible noise
Specifications
This board is optimized for the following operating
conditions:
Input voltage: 85VAC ~ 265VAC
Output voltage: 5VDC
Output current: 150mA maximum
Output power: 0.75W
Efficiency: >62.5% at 100% load; 65% at 50% load
No-load power: <10mW at 230VAC
Load regulation: -3%, load range 10% to 100%
Operating temperature: -45~85°C
Board dimension: 48mm x 29mm
RTKA223012DR0010BU, RTKA223012DR0020BU

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RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
Contents
1. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Recommended Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Setup and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Board Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Layout Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.1 RTKA223012DR0010BU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.2 RTKA223012DR0020BU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3. Typical Performance Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4. EMI Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
1. Functional Description
The RTKA223012DR0010BU and RTKA223012DR0020BU are high side float-switching buck regulators. Its input
has D1 and D7 as a low-cost rectification (with optional full bridge rectifier foot-print). FR is a 1W fusible resistor
providing input overcurrent protection and inrush current limiting. It also helps to absorb the input line surge
energy together with DC buffer caps, C1 and C2.
C1, L1, and C2 consists of the input filter that provides the energy buffer after rectification and reduces conducted
EMI noises to the input. L2, D2, and COUT are the buck converter components. RFB1, RFB2, CFB2, and CFB1
provide the output feedback signal to the IC. D4 and R2 provide VCC biasing current after startup to increase the
efficiency. They can be optional for low-cost low power applications. CVCC is the IC supply capacitor.
1.1 Recommended Equipment
▪AC Power supply capable of generating AC voltage from 85VAC to 265VAC at 60Hz/50Hz, with at least 100mA
output current capability.
▪Load resistor box with adjustable value of 33Ωand up, or an electronics load that can emulate a resistor load or
current load up to 150mA.
▪Multimeters to measure the output voltage and current.
▪Power meter to measure the AC input power.
1.2 Setup and Configuration
▪Program the AC power supply with a voltage between 85VAC to 265VAC at the corresponding frequency of
60Hz or 50Hz.
▪While the AC power supply is off, connect the output cables of the AC power supply to the L and N terminal of
the RTKA223012DR0010BU (or RTKA223012DR0020BU). An optional power meter can be added in between
the AC power supply output and the input of the board.
▪Connect the load to the output terminals VOUT and GND.
▪Connect a voltage meter to VOUT+ and GND and connect a current meter between board outputs and the load.
▪Turn on the AC power supply.
Figure 1. RTKA223012DR0010BU/RTKA223012DR0020BU Connection Diagram
VOUT +
VIN
85VAC ~ 265VAC
RLOA D
Power
Meter
Power
Meter
V
A

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RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
2. Board Design
Figure 2. RTKA223012DR0010BU Evaluation Board (Top)
Figure 3. RTKA223012DR0010BU Evaluation Board (Bottom)

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RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
2.1 Layout Guidelines
For detailed PCB guidelines, see the RAA223012 datasheet.
Figure 4. RTKA223012DR0020BU Evaluation Board (Top)
Figure 5. RTKA223012DR0020BU Evaluation Board (Bottom)

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2.2 Schematic Diagrams
Figure 6. RTKA223012DR0010BU Schematic
N
VOUT
85VAC~265VAC
L
DNP
DNP
GND
DNP
DNP
DNP
L1
1000UH
COUT 220UF
J1
RFB2
100K
C2
4.7UF
0.47UF
C3
J2
118K
RFB1
U1
RAA2230124GSP#JA0
1
VCC
2
FB
3
GND
4
SOURCE
5
NC
6
NC
7
DRAIN
8
NC
10K
R1
FR
15
CFB1
0.22UF
SOURCE
DRAIN
GND
FB
VCC
U2
J4
1N4007
D7
D8
D2
J3
D6
JP1
1UF
CVCC
D5
D4
CVCC_A
D1
1N4007
D3
1N4007
470PF
CFB2
4.7UF
C1
470UH
L2
0
R2
UNNAMED _2_AXIALDIODE_I14_ANUNNAMED _2_AXIALDIODE_I14_CATUNNAMED _2_AXIALDIODE_I32_AN
UNNAMED _2_AXIALDIODE_I59_AN
UNNAMED _2_AXIALDIODE_I61_AN
UNNAMED _2_FUSEANDFIREPROOF_I25_2 UNNAMED_2_INDRADIAL_I27_1 UNNAME D_2_INDRADIAL_I27_2
UNNAMED _2_JUMPER2_I47_IN1UNNAMED _2_JUMPER2_I47_IN2
UNNAMED _2_RAA223012_I64_2
UNNAMED _2_SMCAP_I21_A
UNNAMED _2_SMDIODE_I15_CAT

X0119847 Rev.1.0 Page 7 Mar 10, 2021 RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
Figure 7. RTKA223012DR0020BU Schematic
85VAC~265VAC
DNP
GND
DNP
N
L
VOUT
DNP
DNP
DNP
L1
1000UH
220UF COUT
J1
RFB2
100K
4.7UF
C2
0.47UF
C3
J2
RFB1
118K
U1
1
VCC
2
FB
3
GND
4
SOURCE
5
NC
6
NC
7
DRAIN
8
NC
10K
R1
FR
15
0.22UF
CFB1
SOURCE
DRAIN
GND
FB
VCC
RAA2230124GNP#JA0
U2
J4
1N4007
D7
D8
D2
J3
D6
JP1
CVCC
D5
D4
CVCC_A
1UF
1N4007
D1 D3
1N4007
470PF
CFB2
C1
4.7UF
470UH
L2
0
R2
UNNAMED _2_AXIALDIODE_I14_ANUNNA MED_2_AX IALDIODE_I14_CATUNNAMED_2_AXIALDIODE_I32_AN
UNNAMED _2_AXIALDIODE_I59_AN
UNNAMED _2_AXIALDIODE_I61_AN
UNNAMED _2_ FUSEANDFIREPROOF_I25_2 UNNAMED _2_INDRADIAL_I27_1 UNNAMED_2_INDRADIAL_I27_2
UNNAMED _2_JUMPER2_I47_IN1UNNAMED_2_JUMPER2_I47_IN2
UNNAMED _2_RAA223012_I64_2
UNNAMED _2_SMCAP_I21_A
UNNAMED _2_SMDIODE_I15_CAT

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RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
2.3 Bill of Materials
2.3.1 RTKA223012DR0010BU
Qty Designator Description Value Manufacturer Manufacturer Number
1 COUT Aluminum Electrolytic 105C
rated 5khrs
220µF, 20%, 16V,RADIAL Rubycon 16YXJ220MT16.3X11
3 D1, D3, D7 Generic Diode 1A 1000V, AXIAL Various 1N4007
0 D5-D6 Generic Diode 1A 1000V, AXIAL Various 1N4007
1 C3 Multilayer Ceramic Cap 0.47µF, 10%, 16V, 0603 TDK C1608X7R1C474K
1 FR Fusible Metal Film Resistor 15, 1%, 1W, AXIAL Yageo FKN1WSJR-52-15R
0 D4 Fast Recovery Diode 1A, 600V, DO214 Fairchild ES1J
2 C1, C2 Alum Cap 105C rated 5kHrs 4.7µF, 20%,400V,RADIAL Kemet ESG475M400AH2AA
1 CFB2 Multilayer Ceramic Cap 470PF, 5%, 50V, 0603 Various Generic
1 CFB1 Multilayer Ceramic Cap 0.22µF, 20%, 25V, 0603 Various Generic
0 CVCC_A Multilayer Ceramic Cap 1µF, 10%, 25V, 0805 Various Generic
1 CVCC Multilayer Ceramic Cap 1µF, 10%, 25V, 0805 Various Generic
1 R2 Thick Film Chip Resistor 0, 1%, 1/16W, 0603 Various Generic
1 RFB2 Thick Film Chip Resistor 100k, 1%, 1/16W, 0603 Various Generic
1 R1 Thick Film Chip Resistor 10k, 1%, 1/16W, 0603 Various Generic
1 RFB1 Thick Film Chip Resistor 118k, 1%, 1/10W, 0805 Various Generic
1 D8 Switching Diode SOD123 ON-Semi MMSD4148T1
1 D2 Ultrafast Power Rectifier SMB On
Semiconductor
MURS160T3
1 U1 700V, Offline Regulator SO8 Renesas RAA2230124GSP#AA0
0 U2 700V, Offline Regulator SOT23-5 Renesas RAA2230124GP3#AA0
1 L2 Fixed Inductor 470µH, 15%, 0.47A, Radial Sumida RCH855NP-471K
1 L1 Fixed Inductor 1mH, 10%, 0.1A, Radial Bourns RLB0608-102KL

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RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
2.3.2 RTKA223012DR0020BU
Qty Designator Description Value Manufacturer Manufacturer Number
1 COUT Aluminum Electrolytic 105C
rated 5khrs
220µF, 20%, 16V,RADIAL Rubycon 16YXJ220MT16.3X11
3 D1, D3, D7 Generic Diode 1A 1000V, AXIAL Various 1N4007
0 D5-D6 Generic Diode 1A 1000V, AXIAL Various 1N4007
1 C3 Multilayer Ceramic Cap 0.47µF, 10%, 16V, 0603 TDK C1608X7R1C474K
1 FR Fusible Metal Film Resistor 15, 1%, 1W, AXIAL Yageo FKN1WSJR-52-15R
0 D4 Fast Recovery Diode 1A, 600V, DO214 Fairchild ES1J
2 C1, C2 Cap Alum 105C rated 5kHrs 4.7µF, 20%,400V,RADIAL Kemet ESG475M400AH2AA
1 CFB2 Multilayer Ceramic Cap 470PF, 5%, 50V, 0603 Various Generic
1 CFB1 Multilayer Ceramic Cap 0.22µF, 20%, 25V, 0603 Various Generic
1 CVCC_A Multilayer Ceramic Cap 1µF, 10%, 25V, 0805 Various Generic
0 CVCC Multilayer Ceramic Cap 1µF, 10%, 25V, 0805 Various Generic
1 R2 Thick Film Chip Resistor 0, 1%, 1/16W, 0603 Various Generic
1 RFB2 Thick Film Chip Resistor 100k, 1%, 1/16W, 0603 Various Generic
1 R1 Thick Film Chip Resistor 10k, 1%, 1/16W, 0603 Various Generic
1 RFB1 Thick Film Chip Resistor 118k, 1%, 1/10W, 0805 Various Generic
1 D8 Switching Diode SOD123 ON-Semi MMSD4148T1
1 D2 Ultrafast Power Rectifier SMB On
Semiconductor
MURS160T3
0 U1 700V, Offline Regulator SO8 Renesas RAA2230124GSP#AA0
1 U2 700V, Offline Regulator SOT23-5 Renesas RAA2230124GP3#AA0
1 L2 Fixed Inductor 470µH, 15%, 0.47A, Radial SUMIDA RCH855NP-471K
1 L1 Fixed Inductor 1mH, 10%, 0.1A, Radial BOURNS RLB0608-102KL

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RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
2.4 Board Layout
Figure 8. Top Layer
Figure 9. Bottom Layer

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RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
3. Typical Performance Graphs
4. EMI Test Results
RTKA223012DR0010BU/RTKA223012DR0020BU Buck regulator is compliant to the conducted and radiated EMI
requirements of FCC Part 22 and CISPR22.
VIN = 85VAC~265VAC, VOUT = 5V, IOUT = 150mA (max), TA= +25°C
Figure 10. Efficiency Overload Current Figure 11. Load Regulation
Table 1. Typical No-load Power Consumption
Power Supply Standby Power Energy Star
120VAC/60Hz 4.5mW 300mW
230VAC/50Hz 8.5mW 300mW
Figure 12. Line, 120VAC Figure 13. Line, 230VAC
45
50
55
60
65
70
75
0306090120150
Efficiency (%)
Load Current (mA)
120Vac
230Vac
4.5
4.7
4.9
5.1
5.3
5.5
5.7
0306090120150
Output Voltage (V)
Load Current (mA)
120Vac
230Vac

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RTKA223012DR0010BU, RTKA223012DR0020BU Demonstration Board Manual
5. Ordering Information
6. Revision History
Figure 14. Neutral, 120VAC Figure 15. Neutral, 230VAC
Part Number Description
RTKA223012DR0010BU RAA223012 SOIC-8 Demonstration Board
RTKA223012DR0020BU RAA223012 SOT23-5 Demonstration Board
Revision Date Description
1.0 Mar 10, 2021 Initial release

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(Rev.1.0 Mar 2020)