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1
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D D
C C
B B
A A
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Efficient Power Conversion
909 N. Pacific Coast Hwy, Ste. 230
El Segundo, CA 90245
United States
www.epc-co.com
4
EPC90152_B5343_Rev2_0
1
1
12/23/2022
D0727_B5343_Rev2_0.SCHDOC
Title
Size:
Date:
File:
Revision:
Sheet of
A
GND
Evaluation Board Main Schematic
12VDC
Vdd12
Logic Supply
GND
Vdd12
5 V Logic Regulator
In1
In2
GND
SW Output
Main Supply Input
GND
Sync Buck Output
VCC
GND
VOUT
H
High Voltage
H
High Voltage
GND
VCC
In1
In2
Qup
Qlow
DT
AP1010_Rev3_02_GeneralDeadtime.SCHDOC
5V
GND
VCC
V1
AP1006_Rev2_01_12Vto5VlinPSU.SCHDOC
GND
In1
In2
DTQlow
DTQup
E
PCB1
D0727 B5343 Rev. 2.0
W
X
For evaluation only;
not FCC approved for resale
dead-time and buffers
E
Power Stage
GND GND
SW
VCC
GND
VIN
GND GND
SW
Bootstrap Voltage
SW
Switch-node
GND
Heatspreader Mount
GND
VDRV
PWMH
PWML
GND
VIN
SW
Vboot
nEN
VDD
GD
D0727_Rev1_0_ePowerStage.SCHDOC
VCC
GND
VOUT
Signal Inputs
Intermediate Capacitors
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
GND
VIN
VIN
SW
GND
VIN
VINVIN
VINVIN
VINVIN
SW
SWSW
SWSW
SWSW
GND
© EPC
FD1
PCB Fiducial
FD2
PCB Fiducial
FD3
PCB Fiducial
1 2
3
5
7
4
6
8
Bottom Side install
Amphenol
67997-272HLF
J3A
17 18
19
21
23
20
22
24
Bottom Side install
J3C
9 10
11
13
15
12
14
16
Bottom Side install
J3B
0805
1uF 100V
Cm1
0805
1uF 100V
Cm2
0805
1uF 100V
Cm3
0805
1uF 100V
Cm4
0805
1uF 100V
Cm5
0805
1uF 100V
Cm6
0805
1uF 100V
Cm7
0805
1uF 100V
Cm8
0805
1uF 100V
Cm9
0805
1uF 100V
Cm10
SMD MMCX
J11
EMPTY
TBD
L1
EMPTY
TBD
Cout
EMPTY
1
2
7.62mm TH
J9
EMPTY
SMD TP
Keystone5015
TP2
SMD TP
Keystone5015
TP4
SMD TP
Keystone5015
TP3SMD TP
Keystone5015
TP1
0402
0E 1/16W
R11
EMPTY
1
2
Hole 100mil 1 row, 2 pos.
J33
1
2
3
4
100mil TH
J80
1
2
100mil TH
J90
0603
0E 0.1W
R90
0603
1uF 25V
C11
9774010243R
Spacer M2 1mm
SO1
9774010243R
Spacer M2 1mm
SO2
9774010243R
Spacer M2 1mm
SO3
EFFICIENT POWER CONVERSION
Vboot
VIN
eGaN® IC
Vboot
Vdd
0402
0E 1/16W
R22
EMPTY
Vdd
GND
nEN
Vdd
nEN
1
2
100mil TH
J81
EMPTY
GND
GND
GND
1
2
Hole 100mil 1 row, 2 pos.
J2
SMD MMCX
J22
EMPTY
0402
10k 1/16W
R73