ADP1883 Analog Devices, ADP1883 Datasheet - Page 38
ADP1883
Manufacturer Part Number
ADP1883
Description
Synchronous Current-Mode Buck Controller with Constant On-time, 0.8 V Reference Voltage, and Power Saving Mode
Manufacturer
Analog Devices
Datasheet
1.ADP1882.pdf
(40 pages)
- Current page: 38 of 40
- Download datasheet (2Mb)
ADP1882/ADP1883
DUAL-INPUT, 300 kHz HIGH CURRENT APPLICATIONS CIRCUIT
HIGH VOLTAGE INPUT
70pF
V
OUT
C
F
V
0.1µF
DD
R1 7.5kΩ
C2
= 5V
15kΩ
R
24.9kΩ
C
1000pF
C
R2
C
1µF
C1
Figure 92. Applications Circuit for 13 V Input, 1.8 V Output, 20 A, 300 kHz (Q2/Q4 No Connect)
JP1
1
2
3
4
5
VIN
COMP/EN
FB
GND
VDD
ADP1882/
ADP1883
DRVH
PGND
DRVL
BST
SW
10
9
8
7
6
100kΩ
C12
100nF
R5
HIGH VOLTAGE INPUT
Rev. 0 | Page 38 of 40
V
Q1
Q3
IN
= 13V
Q2
Q4
22µF
MURATA: (HIGH VOLTAGE INPUT CAPACITORS)
PANASONIC: (OUTPUT CAPACITORS)
INFINEON MOSFETs (NO CONNECTION FOR Q2/Q4:
WURTH INDUCTORS:
C3
22µF, 25V, X7R, 1210 GRM32ER71E226KE15 L
270µF SP-SERIES, 4V, 7mΩ EEFUE0G271LR
BSC042N03MS G (LOWER SIDE)
BSC080N03MS G (UPPER SIDE)
0.8µH, 27.5mΩ, SUMIDA CEP125U-0R8
R6
2Ω
C13
1.5nF
0.8µH
22µF
C4
+
270µF
C14 TO C19
N/A
22µF
C20
C5
+
22µF
270µF
C6
C21
V
22µF
+
OUT
270µF
C7
C22
= 1.8V, 20A
22µF
+
C8
270µF
C23
+
270µF
C24
+
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