ADP1875 Analog Devices, ADP1875 Datasheet - Page 41

• Manufacturer Part Number: ADP1875
• Description: Synchronous Buck Controller with Constant On-Time, Valley Current Mode, and Power Saving Mode
• Manufacturer: Analog Devices

300 kHz HIGH CURRENT APPLICATION CIRCUIT
V
V
REG
OUT
C
56pF
PAR
0.1µF
R
C2
R7 10kΩ
TOP
R
1kΩ
2kΩ
BOT
C
560pF
100kΩ
R
49.3kΩ
R
1µF
C
C
RES
C1
Figure 99. Application Circuit for 13 V Input, 1.8 V Output, 12 A, 300 kHz (Q2/Q4 No Connect)
JP3
1
2
3
4
5
6
7
8
C
22µF
VIN
COMP
EN
FB
GND
RES
VREG
VREG_IN
VIN
ADP1874/
ADP1875
PGOOD
TRACK
PGND
DRVH
DRVL
BST
SW
SS
16
15
14
13
12
11
10
9
C
100nF
5kΩ
BST
10kΩ
HIGH VOLTAGE INPUT
Rev. 0 | Page 41 of 44
V
V
REG
REG
V
Q1
Q3
IN
= 13V
C
34nF
Q2
Q4
SS
22µF
C3
R
2Ω
C
1.5nF
1.2µH
SNB
SNB
MURATA: (HIGH VOLTAGE INPUT CAPACITORS)
PANASONIC: (OUTPUT CAPACITORS)
INFINEON MOSFETs:
WÜRTH INDUCTORS:
22µF
22µF, 25V, X7R, 1210 GRM32ER71E226KE15L
270µF, SP-SERIES, 4V, 7mΩ EEFUE0G271LR
BSC042N03MS G (LOWER SIDE)
BSC080N03MS G (UPPER SIDE)
1.2µH, 2.00mΩ, 20A 744325120
C4
C24
N/A
270µF
22µF
C20
+
C5
C25
N/A
+
22µF
270µF
C6
C21
+
C26
N/A
V
22µF
+
OUT
270µF
C7
C22
+
= 1.8V, 12A
C27
N/A
N/A
+
C8
270µF
ADP1874/ADP1875
C23
+
C14 TO C19
N/A
N/A
C9
+