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ADP1877ACPZ-R7 Datasheet(PDF) 29 Page - Analog Devices

Part # ADP1877ACPZ-R7
Description  Dual Output Synchronous Buck PWM Controller With Tracking
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP1877ACPZ-R7 Datasheet(HTML) 29 Page - Analog Devices

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ADP1877
Rev. 0 | Page 29 of 32
VCCO
84.5kΩ
VCCO
698kΩ
EN1
SYNC
100nF
TO
VIN
VIN
VCCO
VDL
AGND
FREQ
EN2
SW1
DH1
PGND1
DL1
DL2
PGND2
DH2
SW2
ADP1877
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
32
31
30
29
28
27
26
25
9
10
11
12
13
14
15
16
22.6kΩ
68pF
820pF
8.25kΩ
120pF
2.2nF
100nF
1µF
0.1µF
0.1µF
1µF
1µF
RILIM2
2.8kΩ
L2
M2B
M2A
RCSG2
22kΩ
COUT2
CIN2
VOUT2
1.8V
5A
VIN
RILIM1
2.8kΩ
L1
M1B
M1A
RCSG1
22kΩ
COUT1
CIN1
VOUT1
5V
5A
VIN = 10V TO 14V
RTOP2
20kΩ
RBOT2
10kΩ
CIN1, CIN2: 10µF/X5R/16V/1206 × 2, GRM31CR61C106KA88, MURATA
M1, M2: Si4944DY OR BSON03MD
COUT1: 22µF/X5R/1210/6.3V × 3, GRM32DR60J226KA01, MURATA
COUT2: 22µF/X5R/1210/6.3V × 3, GRM32DR60J226KA01, MURATA
fSW = 750kHz
L1: 2µH, 744310200, WURTH ELEKTRONIK
L2: 1.15µH, 744310115, WURTH ELEKTRONIK
RTOP1
73.2kΩ
RBOT1
10kΩ
3Ω
1MΩ
1MΩ
Figure 43. Typical Low Current Operating Circuit



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