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DC473A

P1-P3P4-P4
QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 473
HIGH EFFICIENCY DUAL OUTPUT POWER SUPPLY
Burst
1.8V
Cont.
SGND PGND
1.8V @ 5A
3V-7Vin
VIN
VIN
VIN
VIN
R11
10K
C6
1uF
6.3V
E8
Pwrgd1
C19
27pF
Q1B
Si4922DY
4
6
53
R1
10
5%
Q1A
Si4922DY
2
8
71
E11
SD2
C21
3300pF
R17
10K
R14
10K
R12
4.75K
E10
SD1
U1
LTC1702ACGN
5
8
1
2
3
4
7
6
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
SW1
FCB
PVCC
BOOST1
BG1
TG1
PWRGD1
IMAX1
RUN/SS1
COMP1
SGND
FB1
IMAX2
BOOST2
BG2
TG2
SW2
PGND
PWRGD2
FAULT
RUN/SS2
COMP2
FB2
VCC
L2
1.5uH
IHLP-2525CZ-01-1.5uH
+
C10
180uF
4V
SP
C17
1uF
6.3V
E6
Gnd
C7
1uF
6.3V
R16
68K
D1
MBR0520LT1
1 2
R8
14K
R3
10
R4
10
L1
1.5uH
IHLP-2525CZ-01-1.5uH
C11
1uF
6.3V
E1
Vin
E3
Vout1+
E4
Vout2+
2.5V @ 5A
E2
Gnd
Q2A
Si4922DY
2
8
71
R15
47K
C18
27pF
+
C9
180uF
4V
SP
E7
Pwrgd2
R2
14K
C20
680pF
JP1
1
2
3
C5
1uF
6.3V
C14
4700pF
+
C1
150uF
6.3V
SP
R7
1
R9
1
C4
1uF
6.3V
E5
Gnd
C13
4700pF
E9
Fault
R6
10K
C16
1uF
6.3V
R10
1.6K
R5
1.2K
D2
MBR0520LT1
1 2
C3
10uF
Cer
C2
1uF
6.3V
C15
680pF
R13
8.06K
C8
1uF
6.3V
Q2B
Si4922DY
4
6
53
C12
820pF
Figure 8. Demo Circuit Schematic
4
P1-P3P4-P4

DC473A

Mfr. #:
Buy DC473A
Manufacturer:
Analog Devices Inc.
Description:
Power Management IC Development Tools LTC1702ACGN - High Efficiency Dual Outpu
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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