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LP2951ACDM Datenblatt(PDF) 10 Page - ON Semiconductor

Teilenummer LP2951ACDM
Bauteilbeschribung  Micropower Voltage Regulators
PDF  16 Pages
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Hersteller  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LP2951ACDM Datenblatt(HTML) 10 Page - ON Semiconductor

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LP2950
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10
TYPICAL APPLICATIONS
Figure 18. Lithium Ion Battery Cell Charger
1N4001
Gnd
4.2 V
± 0.025 V
NC
NC
50 k
5
3
Error
SD
Gnd
FB
47
6
VO T
SNS
2
Vout
Vin
8
1
0.1
µF
NC
LP2951CN
2.2
µF
330 pF
806 k
1.0%
2.0 M
1.0%
Lithium Ion
Rechargeable
Cell
Unregulated Input
6.0 to 10 Vdc
Figure 19. Low Drift Current Sink
Error
Output
Shutdown
Input
+V = 2.0 to 30 V
1.0
µF
R
5
3
Error
SD
Gnd
FB
47
6
VO T
SNS
2
Vout
Vin
8
1
0.1
µF
Load
IL = 1.23/R
IL
Figure 20. Latch Off When Error Flag Occurs
Reset
+Vin
Vout
1.0
µF
NC
NC
R2
R1
470 k
5
3
Error
SD
Gnd
FB
47
6
VO T
SNS
2
Vout
Vin
8
1
LP2951CN
470 k
Error flag occurs when Vin is too low to
maintain Vout, or if Vout is reduced by
excessive load current.
Normally
Closed
2N3906
Figure 21. 5.0 V Regulator with 2.5 V Sleep Function
*Sleep
Input
+Vin
Vout
3.3
µF
NC
NC
100 k
100 k
470 k
5
3
Error
SD
Gnd
FB
47
6
VO T
SNS
2
Vout
Vin
8
1
LP2951CN
200 k
100 pF
2N3906
47 k
CMOS
Gate
Error
Output
Shutdown
Input
LP2951CN



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