Datasheet

Data Sheet ADP1874/ADP1875
Rev. A | Page 41 of 44
300 kHz HIGH CURRENT APPLICATION CIRCUIT
10kΩ
V
REG
MURATA: (HIGH VOLTAGE INPUT CAPACITORS)
22µF, 25V, X7R, 1210 GRM32ER71E226KE15L
PANASONIC: (OUTPUT CAPACITORS)
270µF, SP-SERIES, 4V, 7mΩ EEFUE0G271LR
INFINEON MOSFETs:
BSC042N03MS G (LOWER SIDE)
BSC080N03MS G (UPPER SIDE)
WÜRTH INDUCTORS:
1.2µH, 2.00mΩ, 20A 744325120
Q3 Q4
Q1 Q2
HIGH VOLTAGE INPUT
V
IN
= 13V
C
BST
100nF
V
OUT
= 1.8V, 12A
C3
22µF
C4
22µF
C5
22µF
C6
22µF
C7
22µF
C8
N/A
C9
N/A
C23
270µF
+
C22
270µF
+
C21
270µF
+
C20
270µF
+
C27
N/A
C14 TO C19
N/A
+
C26
N/A
+
C25
N/A
+
C24
N/A
+
1.2µH
R
SNB
2Ω
C
SNB
1.5nF
R
TOP
2kΩ
R7 10kΩ
R
BOT
1kΩ
V
OUT
1
VIN
16
BST
2
COMP
15
SW
3
EN
14
DRVH
5
GND
12
DRVL
ADP1874/
ADP1875
C
C
560pF
C
PAR
56pF
R
C
49.3kΩ
C1
1µF
C
VIN
22µF
C2
0.1µF
JP3
R
RES
100kΩ
4
FB
13
PGND
6
RES
11
PGOOD
7
VREG
10
SS
8
VREG_IN
9
TRACK
5kΩ
V
REG
C
SS
34nF
V
REG
09347-090
Figure 99. Application Circuit for 13 V Input, 1.8 V Output, 12 A, 300 kHz (Q2/Q4 No Connect)