Datasheet

Data Sheet ADP1870/ADP1871
Rev. B | Page 39 of 44
TYPICAL APPLICATIONS CIRCUITS
15 A, 300 kHz HIGH CURRENT APPLICATION CIRCUIT
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:
1µH, 3.3mΩ, 20A 7443552100
R5
100kΩ
Q3
Q4
Q1
Q2
HIGH VOLTAGE INPUT
V
IN
= 12V
C12
100nF
V
OUT
= 1.8V, 15A
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
+
1.0µH
R6
2Ω
C13
1.5nF
R1 30kΩ
R2
15kΩ
R4
0Ω
V
OUT
1
VIN
10
BST
2
COMP/EN
9
SW
3
FB
8
DRVH
4
GND
7
PGND
5
VREG
6
DRVL
ADP1870/
ADP1871
C
C
571pF
C
F
57pF
R
C
47kΩ
C1
1µF
C28
10µF
C2
0.1µF
JP3
08730-088
Figure 92. Application Circuit for 12 V Input, 1.8 V Output, 15 A, 300 kHz (Q2/Q4 No Connect)
5.5 V INPUT, 600 kHz APPLICATION CIRCUIT
MURATA: (HIGH VOLTAGE INPUT CAPACITORS)
22µF, 25V, X7R, 1210 GRM32ER71E226KE15L
PANASONIC: (OUTPUT CAPACITORS)
180µF, SP-SERIES, 4V, 10mΩ EEFUE0G181XR
INFINEON MOSFETs:
BSC042N03MS G (LOWER SIDE)
BSC080N03MS G (UPPER SIDE)
WÜRTH INDUCTORS:
0.47µH, 0.8mΩ, 50A 744355147
R5
100kΩ
Q3 Q4
Q1 Q2
HIGH VOLTAGE INPUT
V
IN
= 5.5V
C12
100nF
V
OUT
= 2.5V, 15A
C3
22µF
C4
22µF
C5
22µF
C6
22µF
C7
22µF
C8
N/A
C9
N/A
C23
N/A
+
C22
180µF
+
C21
180µF
+
C20
180µF
+
C27
N/A
C14 TO C19
N/A
+
C26
N/A
+
C25
N/A
+
C24
N/A
+
0.47µH
R6
2Ω
C13
1.5nF
R1 30kΩ
R2
15kΩ
R4
0Ω
V
OUT
1
VIN
10
BST
2
COMP/EN
9
SW
3
FB
8
DRVH
4
GND
7
PGND
5
VREG
6
DRVL
ADP1870/
ADP1871
C
C
571pF
C
F
57pF
R
C
47kΩ
C1
1µF
C28
10µF
C2
0.1µF
JP3
08730-089
Figure 93. Application Circuit for 5.5 V Input, 2.5 V Output, 15 A, 600 kHz (Q2/Q4 No Connect)