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ADP1877ACPZ-R7 Datasheet(PDF) 27 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) 27 Page - Analog Devices

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ADP1877
Rev. 0 | Page 27 of 32
TYPICAL OPERATING CIRCUITS
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
66.5kΩ
47pF
330pF
36.5kΩ
47pF
680pF
100nF
1µF
0.1µF
0.1µF
1µF
1µF
RILIM2
4kΩ
L2
M4
M3
RCSG2
4kΩ
COUT22
COUT21
CIN2
VOUT2
1.8V
10A
VIN = 10V TO 14V, OR CAN BE CONNECTED
TO A SEPARATE POWER SUPPLY 5V
RILIM1
4kΩ
L1
M2
M1
RCSG1
4kΩ
COUT12
COUT11
CIN1
VOUT1
3.3V
10A
VIN = 10V TO 14V
RTOP2
20kΩ
RBOT2
10kΩ
CIN1, CIN2: 10µF/X7R/25V/1210 × 2, GRM32DR71E106KA12, MURATA
COUT11, COUT21: 330µF/6.3V/POSCAP × 2, 6TPF330M9L, SANYO
COUT12, COUT22: 22µF/X5R/0805/6.3V, GRM21BR60J226ME39, MURATA
fSW = 600kHz
L1, L2: 1.2µH, WURTH ELEKTRONIK, 744325120
M1, M2, M3, M4: IRLR7821
RTOP1
45.3kΩ
RBOT1
10kΩ
2Ω
1MΩ
1MΩ
Figure 41. Typical Medium Current Operating Circuit



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