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ADP1877ACPZ-R7 Datasheet(PDF) 28 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) 28 Page - Analog Devices

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ADP1877
Rev. 0 | Page 28 of 32
VCCO
VCCO
VCCO
845kΩ
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
18.7kΩ
220pF
2.2nF
12.7kΩ
220pF
3.9nF
100nF
1µF
0.1µF
0.1µF
1µF
1µF
RILIM2
3.7kΩ
RDH2
3Ω
L2
M4
M3
RCSG2
22kΩ
COUT22
COUT21
CIN2
VOUT2
1.05V
20A
VIN
RILIM1
3.7kΩ
L1
M2
M1
RCSG1
22kΩ
COUT12
1.2nF
4Ω
COUT11
CIN1
CIN
VOUT1
1.8V
20A
VIN = 10V TO 14V
RTOP2
7.5kΩ
RBOT2
10kΩ
CIN1, CIN2: 10µF/X7R/25V/1210 × 2, GRM32DR71E106KA12, MURATA
COUT11, COUT21: 680µF/2.5V/POSCAP × 2, 2R5TPD680M5, SANYO
COUT12, COUT22: 22µF/X5R/0805/6.3V × 3, GRM21BR60J226ME39, MURATA
fSW = 300kHz
CIN = 180µF/20V, 20SP180M, OSCON, SANYO
L1, L2: 1.3µH, WURTH ELEKTRONIK, 7443551130
M1, M3: BSC080N03LS
M2, M4: BSC030N03LS
RTOP1
20kΩ
RBOT1
10kΩ
2Ω
1.2nF
4Ω
RDH1
3Ω
RDL1
3Ω
RDL2
3Ω
1MΩ
1MΩ
Figure 42. Typical 20 A Operating Circuit



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