Datasheet

ADP1621 Data Sheet
Rev. B | Page 26 of 32
ADP1621
PIN
GATE
CS
AGND
PGND
SDSN
COMP
FREQ
GND
IN
FB
R1
324kΩ
1%
R2
10.2kΩ
1%
R3
649Ω
C1
22µF
16V
×2
L1
15µH
M1
C
COMP
18pF
f
OSC
= 560kHz
C1 = MURATA GRM32ER61C226K
C
OUT1
= MURATA GRM31CR72A105K
C
OUT2
= MURATA GRM55ER71H475K
C
OUT3
= RUBYCON 63ZL220M10x23
M1 = VISHAY Si7478DP
D1 = MBRB7H50
L1 = COILCRAFT MSS1278-153ML
R
S
442Ω
R
CS
0.01Ω
R
FREQ
34.8Ω
D1
C3
1µF
10V
C4
0.1µF
10V
C2
120pF
R
COMP
2MΩ
V
IN
= 12V
C
OUT1
1µF
100V
C
OUT2
4.7µF
50V
C
OUT3
220µF
63V
×2
V
OUT
= 40V
1A
06090-037
Figure 38. High Input Voltage and High Output Voltage Converter