Renesas RTKA223012DR0050BU User manual

Demonstration Board Manual
R16UZ0016EU0102 Rev.1.2 Page 1
Jul 28, 2021 © 2021 Renesas Electronics
The RAA223012 demonstration boards
(RTKA223012DR0050BU and
RTKA223012DR0060BU) are high voltage buck or
buck/boost converters that demonstrate low-cost high
performance non-isolated AC/DC conversion from a
universal input of 85VAC to 265VAC, to a 5V output or
a -5V with the output current up to 150mA.
The board can be configured to a Buck or a
Buck/Boost converter by using jumper (JP1) without
changing the output polarity. It 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/CISPR22
and the 1.5kV surge test by IEC61000-4-5 standard.
RTKA223012DR0050BU comes with a RAA223012
in a SO8 package. RTKA223012DR0060BU comes
with a RAA223012 in aSOT23-5 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 or -5VDC
▪ Output current: 150mA maximum
▪ Output power: 0.75W
▪ Efficiency: >62.5% at 100% load; 65% at 50% load
(Buck); >61% at 100% load; 63% at 50% load
(Buck/Boost)
▪ No-load power: <10mW at 230VAC
▪ Load regulation: -3%, load range 10% to 100%
▪ Operating temperature: -45~85°C
▪ Board dimension: 48mm x 29mm
RTKA223012DR0050BU, RTKA223012DR0060BU

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RTKA223012DR0050BU, RTKA223012DR0060BU 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 RTKA223012DR0050BU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.2 RTKA223012DR0060BU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3. Typical Performance Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4. EMI Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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RTKA223012DR0050BU, RTKA223012DR0060BU Demonstration Board Manual
1. Functional Description
The RTKA223012DR0050BU and RTKA223012DR0060BU are high-side float-switching buck regulators when
JP1 is on Pin 1 and Pin 2, and can be configured to a Buck/Boost converter when JP1 is on Pin 2 and Pin3, as
shown on the schematic and connection diagram (Figure 1 and Figure 6). Its input has D1 and D6 as a low-cost
rectification (with optional full-bridge rectifier footprint). 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, D,2 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 33Ω and 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 and 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 RTKA223012DR0050BU (or RTKA223012DR0060BU). 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 VOUT-.
▪ Connect a voltage meter to VOUT+ and VOUT-, and connect a current meter between board outputs and the
load.
▪ Turn on the AC power supply.
Figure 1. RTKA223012DR0050BU/RTKA223012DR0060BU Connection Diagram

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RTKA223012DR0050BU, RTKA223012DR0060BU Demonstration Board Manual
2. Board Design
Figure 2. RTKA223012DR0050BU Evaluation Board (Top)
Figure 3. RTKA223012DR0050BU Evaluation Board (Bottom)

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RTKA223012DR0050BU, RTKA223012DR0060BU Demonstration Board Manual
2.1 Layout Guidelines
For detailed PCB guidelines, see the RAA223012 datasheet.
Figure 4. RTKA223012DR0060BU Evaluation Board (Top)
Figure 5. RTKA223012DR0060BU Evaluation Board (Bottom)

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2.2 Schematic Diagrams
Figure 6. RTKA223012DR0050BU Schematic
85VAC~265VAC
DNP
DNP
L
N
VOUT-
VOUT+
Buck/Boost
Buck
J4
U1
RAA2230124GSP#JA0
1
VCC
2
FB
3
GND
4
SOURCE
5
NC
6
NC
7
DRAIN
8
NC
118K
RFB1
J2
J3
SOURCE
DRAIN
GND
FB
VCC
U2
0.22UF
CFB1
J1
JP1
1
2
3
D2
1 2
10
FR
1 2
1UF
CVCC
1N4007
D3
1 2
1N4007
D1
12
560UH
L2
1 2
ES1J
D4
1 2
1N4007
D5
12
CVCC_A
COUT 220UF
1 2
2.2UF
C1
12
CFB2
470PF
C3
0.47UF
L1
1000UH
1 2
0
R2
15K
R1
C2
2.2UF
12
RFB2
100K
UNNAMED _2_AXIALDIODE_I14_ANUNNAMED _2_AXIALDIODE_I14_CATUNNAMED _2_ AXIAL DIODE _I32_ANUNNAMED _2_AXIALDIODE_I32_CATUNNAMED _2_AXIALRES_I25_1 UNNAMED_2_INDRADIAL_I27_1 UNNAMED_2_INDRADIAL_I27_2
UNNAMED _2_INDRADIAL_I28_B
UNNAMED _2_JUMPER3_I70_IN2
UNNAMED _2_MURS160T3_I16_A N
UNNAMED _2_RAA223012_I64_2
UNNAMED _2_SMCAP_I21_A
UNNAMED _2_SMDIODE_I15_CAT

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Figure 7. RTKA223012DR0060BU Schematic
85VAC~265VAC
DNP
DNP
L
N
VOUT-
VOUT+
Buck
Buck/Boost
U1
1
VCC
2
FB
3
GND
4
SOURCE
5
NC
6
NC
7
DRAIN
8
NC
J4J2
118K
RFB1
SOURCE
DRAIN
GND
FB
VCC
U2
RAA2230124GNP#JA0
J3
J1
0.22UF
CFB1
JP1
1
2
3
10
FR
1 2
D2
1 2
CVCC
1N4007
D1
12
1N4007
D3
1 2
560uH
L2
1 2
1N4007
D5
12
ES1J
D4
1 2
1UF
CVCC_A
2.2UF
C1
12
COUT 220UF
1 2
CFB2
470PF
L1
1000UH
1 2
C3
0.47UF
0
R2
C2
2.2UF
12
15K
R1
RFB2
100K
UNNAMED _2_AXIALDIODE_I14_ANUNNAMED _2_AXIALDIODE_I14_CATUNNAMED_2_AXIALDIODE_I32_ANUNNAMED _2_AXIALDIODE_I32_CATUNNAMED _2_AXIALRES_I25_1 UNNAMED _2_INDRADIAL_I27_1UNNA MED _2_INDRADIAL_I27_2
UNNAMED _2_INDRADIAL_I28_B
UNNAMED _2_JUMPER3_I70_IN2
UNNAMED _2_ MURS160T3_I16_AN
UNNAMED _2_RAA223012_I64_2
UNNAMED _2_SMCAP_I21_A
UNNAMED _2_SMDIODE_I15_CAT

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RTKA223012DR0050BU, RTKA223012DR0060BU Demonstration Board Manual
2.3 Bill of Materials
2.3.1 RTKA223012DR0050BU
Qty Designator Description Manufacturer Manufacturer Part
1 C3 CAP, SMD, 0603, 0.47µF, 16V, 10%, X7R, ROHS TDK C1608X7R1C474K080AC
1 CFB2 Multilayer Ceramic CAP, SMD, 0603, 470pF, 50V,
10%, ROHS
Various Generic
1 CFB1 CAP, SMD, 0603, 0.22µF, 25V, 10%, X7R, ROHS TDK C1608X7R1E224K
1 CVCC CAP, SMD, 0805, 1.0µF, 25V, 10%, X5R, ROHS AVX 08053C105KAT2A
2 C1, C2 CAP-ALUM ELEC., TH, RADIAL, 2.2µF, 400V, 20%,
3.5mmLS, ROHS
Rubycon 400LLE2R2MEFC8X11.5
1 L2 COIL-PWR INDUCTOR, TH, RADIAL, 560µH, 10%,
0.16A, ROHS
Sumida RCH855NP-561K
1 L1 COIL-PWR INDUCTOR, TH, RADIAL, 5x7, 1000µH,
0.1A, WW, ROHS
Bourns RLB0608-102KL
1 JP1 CONN-HEADER,1x3, BREAKAWY 1x36, 2.54mm,
ROHS
BERG/FCI 68000-236HLF
3 D1, D3, D5 DIODE-RECTIFIER, AXIAL, DO-41, 1000V, 1A,
ROHS
Diodes Inc. 1N4007
1 D4 DIODE-RECTIFIER, SMD, 2P, SMA, 600V, 1A, ROHS Fairchild ES1J
1 D2 DIODE-RECTIFIER, SMD, SMB, 2P, 1A, 600V, ROHS On Semiconductor MURS160T3G
1 U1 IC-700V BUCK REGULATOR, 8P, SOICN, 200mA,
ROHS
Renesas Electronics RAA2230124GSP#AA0
1 FR RES-FUSIBLE, TH, AXIAL, 3.3x9, 15Ω, 1W, 5%, WW,
ROHS
Yageo FKN1WSJR-52-15R
1 R2 RES, SMD, 0603, 0Ω,1/10W, TF, ROHS Venkel CR0603-10W-000T
1 RFB2 RES, SMD, 0603, 100k, 1/10W, 1%, TF, ROHS Venkel CR0603-10W-1003FT
1 R1 RES, SMD, 0603, 15k, 1/10W, 1%, TF, ROHS Panasonic ERJ-3EKF1502V
1 RFB1 RES, SMD, 0805, 118k, 1/8W, 1%, TF, ROHS Yageo RC0805FR-07118KL
1 COUT CAP, TH, RADIAL, 220µF, 16V, 20%, 220mΩ,
ALUM.ELEC., ROHS
Rubycon 16YXJ220MT16.3X11

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RTKA223012DR0050BU, RTKA223012DR0060BU Demonstration Board Manual
2.3.2 RTKA223012DR0060BU
Qty Designator Description Manufacturer Manufacturer Part
1 C3 CAP, SMD, 0603, 0.47µF, 16V, 10%, X7R, ROHS TDK C1608X7R1C474K080AC
1 CFB2 Multilayer Ceramic CAP, SMD, 0603, 470pF, 50V,
10%, ROHS
Various Generic
1 CFB1 CAP, SMD, 0603, 0.22µF, 25V, 10%, X7R, ROHS TDK C1608X7R1E224K
1 CVCC A CAP, SMD, 0805, 1.0µF, 25V, 10%, X5R, ROHS AVX 08053C105KAT2A
2 C1,C2 CAP-ALUM,ELEC., TH, RADIAL, 2.2µF, 400V, 20%,
3.5mmLS, ROHS
Rubycon 400LLE2R2MEFC8X11.5
1 L2 COIL-PWR INDUCTOR, TH, RADIAL, 560µH, 10%,
0.16A, ROHS
Sumida RCH855NP-561K
1 L1 COIL-PWR INDUCTOR, TH, RADIAL, 5x7, 1000µH,
0.1A, WW, ROHS
Bourns RLB0608-102KL
1 JP1 CONN-HEADER, 1x3, BREAKAWY 1x36, 2.54mm,
ROHS
BERG/FCI 68000-236HLF
3 D1,D3,D5 DIODE-RECTIFIER, AXIAL, DO-41, 1000V, 1A,
ROHS
Diodes Inc. 1N4007
1 D4 DIODE-RECTIFIER, SMD, 2P, SMA, 600V, 1A,
ROHS
Fairchild ES1J
1 D2 DIODE-RECTIFIER, SMD, SMB, 2P, 1A, 600V,
ROHS
On Semiconductor MURS160T3G
1 U1 IC-700V BUCK REGULATOR, 8P, SOT23, 200mA,
ROHS
Renesas Electronics RAA2230124GP3#AA0
1 FR RES-FUSIBLE, TH, AXIAL, 3.3x9, 15Ω, 1W, 5%,
WW, ROHS
Yageo FKN1WSJR-52-15R
1 R2 RES, SMD, 0603, 0Ω, 1/10W, TF, ROHS Venkel CR0603-10W-000T
1 RFB2 RES, SMD, 0603,100k, 1/10W, 1%, TF, ROHS Venkel CR0603-10W-1003FT
1 R1 RES, SMD, 0603, 15k, 1/10W, 1%, TF, ROHS Panasonic ERJ-3EKF1502V
1 RFB1 RES, SMD, 0805, 118k, 1/8W, 1%, TF, ROHS Yageo RC0805FR-07118KL
1 COUT CAP, TH, RADIAL, 220µF, 16V, 20%, 220mΩ,
ALUM.ELEC., ROHS
Rubycon 16YXJ220MT16.3X11

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RTKA223012DR0050BU, RTKA223012DR0060BU Demonstration Board Manual
2.4 Board Layout
Figure 8. Top Layer
Figure 9. Bottom Layer

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RTKA223012DR0050BU, RTKA223012DR0060BU Demonstration Board Manual
3. Typical Performance Graphs
VIN = 85VAC~265VAC, VOUT = 5V, IOUT = 150mA (maximum), TA = +25°C
Figure 10. Buck Efficiency Overload Current Figure 11. Load Regulation 5V Buck
Figure 12. Buck/Boost Efficiency Overload Current Figure 13. Load Regulation Buck/Boost
Table 1. Typical No-load Power Consumption
Power Supply Standby Power Energy Star
120VAC/60Hz 4.5mW 300mW
230VAC/50Hz 8.5mW 300mW
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
45
50
55
60
65
70
75
0306090120
150
Efficiency (%)
Load Current (mA)
120Vac
230Vac
-5.7
-5.5
-5.3
-5.1
-4.9
-4.7
-4.5
0306090120150
Output Voltage (V)
Load Current (mA)
120Vac
230Vac

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RTKA223012DR0050BU, RTKA223012DR0060BU Demonstration Board Manual
4. EMI Test Results
RTKA223012DR0050BU/RTKA223012DR0060BU Buck regulator is compliant to the conducted EMI
requirements of FCC Part 15 and CISPR22 Class B.
5. Ordering Information
Figure 14. Line, 120VAC Figure 15. Line, 230VAC
Figure 16. Neutral, 120VAC Figure 17. Neutral, 230VAC
Part Number Description
RTKA223012DR0050BU RAA223012 SOIC-8 Demonstration Board
RTKA223012DR0060BU RAA223012 SOT23-5 Demonstration Board

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RTKA223012DR0050BU, RTKA223012DR0060BU Demonstration Board Manual
6. Revision History
Revision Date Description
1.2 Jul 28, 2021 Updated Figure 13.
Completed other minor changes.
1.1 Jun 25, 2021 Updated Schematics
Updated Bill of Materials
Updated top photos.
1.0 Mar 10, 2021 Initial release

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