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ADP1851ACPZ-R7 数据表(PDF) 22 Page - Analog Devices

部件名 ADP1851ACPZ-R7
功能描述  Wide Range Input, Synchronous, Step-Down DC-to-DC Controller
PDF  24 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP1851ACPZ-R7 数据表(HTML) 22 Page - Analog Devices

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ADP1851
Data Sheet
Rev. B | Page 22 of 24
TYPICAL OPERATING CIRCUITS
M2
M1
VIN = 9V TO 15V
L
1
2
3
4
5678
9
10
14
15
16
12
DL
SW
DH
EN
ADP1851
13
11
BST
SS/TRK
COMP
FB
CIN
COUT
EP
TO VIN
1µF
2Ω
1µF
4.99kΩ
21kΩ
75pF
620pF
0.1µF
0.1µF
fSW = 600kHz
CIN: OS-CON 150µF/20V, 20SEP150M, SANYO + 2× CAP CER 10µF 25V X7R 1210, MURATA GRM32DR71E106KA12
L: 0.3µH COILCRAFT SER1408-301ME
M1: 2× INFINEON BSC052N03LS
M2: 2× INFINEON BSC0902NS
COUT: 2× POSCAP 330µF/2.5V SANYO 2R5TPE330M7 + 2× CAP CER 47µF 10V X5R 1210 MURATA GRM32ER61A476KE20 L
2.49kΩ
1.15kΩ
VOUT
1.8V
25A
140kΩ
2Ω
TO
VCCO
Figure 34. 25 A Circuit Operating in Current Mode
M2
M1
VIN = 9V TO 15V
L
100kΩ
1
2
3
4
56
78
9
10
14
15
16
12
DL
SW
DH
EN
ADP1851
13
11
BST
SS/TRK
COMP
FB
CIN
COUT
EP
TO VIN
1µF
2Ω
1µF
32.4kΩ
21.5kΩ
75pF
1600pF
0.1µF
0.1µF
fSW = 300kHz
CIN: OS-CON 150µF/20V, 20SEP150M, SANYO + CAP CER 10µF 25V X7R 1210, MURATA GRM32DR71E106KA12
L: 1µH COILCRAFT SER1412-102ME
M1: INFINEON BSC052N03LS
M2: INFINEON BSC0902NS
COUT: POSCAP 330µF/6.3V SANYO 6TPE330MFL + CAP CER 22µF 10V X5R 1210 MURATA GRM32ER61A226KE20L
7.15kΩ
2.74kΩ
VOUT
3.3V
25A
196kΩ
2kΩ
510pF
Figure 35. 25 A Circuit Operating in Voltage Mode



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