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ADP1877ACPZ-R7 Datasheet(PDF) 30 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) 30 Page - Analog Devices

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ADP1877
Rev. 0 | Page 30 of 32
VCCO
78.7kΩ
VCCO
121kΩ
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
5.34kΩ
33pF
1.8nF
8.66kΩ
33pF
1nF
100nF
1µF
0.1µF
0.1µF
1µF
1µF
RILIM2
4.99kΩ
L2
M4
M3
RCSG2
47kΩ
COUT2
CIN2
VOUT2
1.8V
1.8A
VIN
RILIM1
4.99kΩ
L1
M2
M1
RCSG1
47kΩ
COUT1
CIN1
VOUT1
1.05V
1.8A
VIN = 3V TO 5.5V
CIN1, CIN2: 4.7µF/X5R/16V/0805 × 2, GRM219R60J475KE19, MURATA
M1, M2, M3, M4: Si2302ADS, SOT23
COUT1, COUT2: 22µF/X5R/0805/6.3V, GRM21BR60J226ME39, MURATA
fSW = 800kHz
L1, L2: 1µH, D62LCB1R0M, TOKO
5Ω
RTOP2
20kΩ
RBOT2
10kΩ
RTOP1
73.2kΩ
RBOT1
10kΩ
1MΩ
1MΩ
Figure 44. Typical Low Current Application with VIN < 5.5 V



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