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ADP1850 Datasheet(PDF) 27 Page - Analog Devices

Part # ADP1850
Description  Wide Range Input, Dual/Two-Phase, DC-to-DC Synchronous Buck Controller
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP1850 Datasheet(HTML) 27 Page - Analog Devices

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ADP1850
Rev. 0 | Page 27 of 32
TYPICAL OPERATING CIRCUITS
VCCO
VCCO
187k
Ω
EN1
SYNC
100nF
TO
VIN
VIN
VCCO
VDL
AGND
FREQ
EN2
SW1
DH1
PGND1
DL1
DL2
PGND2
DH2
SW2
ADP1850
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
42.2k
Ω
47pF
330pF
23.2k
Ω
47pF
560pF
100nF
22pF
1µF
0.1µF
0.1µF
1µF
1µF
2.1k
Ω
L2
M4
M3
22k
Ω
COUT22
COUT21
CIN2
VOUT2
1.8V
14A
VIN
2.1k
Ω
L1
M2
M1
22k
Ω
COUT12
COUT11
CIN1
VOUT1
3.3V
14A
VIN = 10V TO 18V
20k
Ω
10k
Ω
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 × 3, GRM21BR60J226ME39, MURATA
fSW = 600kHz
CIN: 150µF/20V, OS-CON, 20SEP150M, SANYO
L1, L2: 1.2µH, WURTH ELEKTRONIK, 744325120
M1, M3: BSC080N03LS
M2, M4: BSC030N03LS
45.3k
Ω
10k
Ω
2
Ω
2
Ω
CIN
22pF
Figure 44. Typical 14 A Operating Circuit



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