Data Sheet
ADP1878/ADP1879
TYPICAL APPLICATION CIRCUITS
12 A, 300 kHz HIGH CURRENT APPLICATION CIRCUIT
HIGH VOLTAGE INPUT
= 12V
V
IN
JP3
C
C3
22µF
C4
22µF
C5
22µF
C6
22µF
C7
22µF
C8
N/A
C9
N/A
VIN
22µF
C
560pF
R
C
ADP1878/
ADP1879
C
100nF
BST
C
56pF
PAR
C
1
2
3
14
13
12
Q1
Q3
Q2
VIN
BST
49.3kΩ
COMP
EN
SW
1.2µH
V
= 1.8V, 12A
+
C23
OUT
R7 10kΩ
2kΩ
V
DRVH
REG
+
+
+
R
C20
270µF
C21
270µF
C22
270µF
SNB
2Ω
R
TOP
270µF
V
Q4
4
5
11
10
FB
PGND
DRVL
OUT
C
SNB
1.5nF
R
BOT
1kΩ
GND
+
+
+
+
C24
N/A
C25
N/A
C26
N/A
C27
N/A
C14 TO C19
N/A
5kΩ
6
7
9
8
RES
PGOOD
SS
V
REG
R
RES
MURATA: (HIGH VOLTAGE INPUT CAPACITORS)
22µF, 25V, X7R, 1210 GRM32ER71E226KE15L
100kΩ
VREG
C
SS
PANASONIC: (OUTPUT CAPACITORS)
270µF (SP-SERIES), 4V, 7mΩ, EEFUE0G271LR
C2
0.1µF
C1
1µF
34nF
INFINEON MOSFETs:
BSC042N03MS G (LOWER SIDE)
BSC080N03MS G (UPPER SIDE)
WÜRTH INDUCTORS:
1.2µH, 2mΩ, 20A, 744325120
Figure 93. Application Circuit for 12 V Input, 1.8 V Output, 12 A, 300 kHz (Q2/Q4 No Connect)
5.5 V INPUT, 600 kHz CURRENT APPLICATION CIRCUIT
HIGH VOLTAGE INPUT
= 5.5V
V
IN
JP3
C
C3
22µF
C4
22µF
C5
22µF
C6
22µF
C7
22µF
C8
N/A
C9
N/A
VIN
22µF
C
220pF
R
C
ADP1878/
ADP1879
C
100nF
BST
C
22pF
F
C
1
2
3
14
Q1
Q3
Q2
VIN
BST
56.9kΩ
COMP
EN
SW 13
0.47µH
V
= 2.5V, 12A
+
C23
OUT
R7 10kΩ
32kΩ
V
12
11
DRVH
PGND
REG
+
+
+
R
C20
180µF
C21
180µF
C22
180µF
SNB
2Ω
R
TOP
N/A
V
Q4
4
5
FB
OUT
C
SNB
1.5nF
R
BOT
1kΩ
GND
DRVL 10
+
+
+
+
C24
N/A
C25
N/A
C26
N/A
C27
N/A
C14 TO C19
N/A
5kΩ
6
7
9
8
RES
PGOOD
SS
V
REG
R
RES
MURATA: (INPUT CAPACITORS)
22µF, 25V, X7R, 1210 GRM32ER71E226KE15L
100kΩ
VREG
C
SS
PANASONIC: (OUTPUT CAPACITORS)
180µF (SP-SERIES), 4V, 10mΩ, EEFUE0G181XR
C2
0.1µF
C1
1µF
34nF
INFINEON MOSFETs:
BSC042N03MS G (LOWER SIDE)
BSC080N03MS G (UPPER SIDE)
WÜRTH INDUCTORS:
0.47µH, 0.8mΩ, 30A, 744355147
Figure 94. Application Circuit for 5.5 V Input, 2.5 V Output, 12 A, 600 kHz (Q2/Q4 No Connect)
Rev. A | Page 37 of 40