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LP2981 Datasheet(PDF) 3 Page - Texas Instruments

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Part # LP2981
Description  100-mA ULTRA-LOW DROPOUT REGULATOR WITH SHUTDOWN
PDF  17 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP2981 Datasheet(HTML) 3 Page - Texas Instruments

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VIN
VOUT
GND
ON/OFF
Overcurrent/
Overtemperature
Protection
VREF
1.23 V
−
+
R1
R2
VOUT
3.3
µF
(see Note A)
1
µF
(see Note A)
VIN
1
ON/OFF
(see Note B)
2
GND
3
5
4
NC
(see Note C)
LP2981
LP2981
www.ti.com ......................................................................................................................................................... SLVS521F – JULY 2004 – REVISED AUGUST 2008
FUNCTIONAL BLOCK DIAGRAM
BASIC APPLICATION CIRCUIT
A.
Minimum COUT value for stability (can be increased without limit for improved stability and transient response)
B.
ON/OFF must be actively terminated. Connect to VIN if shutdown feature is not used.
C.
Pin 4 (NC) must be left open. Do not connect anything to this pin.
Figure 1.
Copyright © 2004–2008, Texas Instruments Incorporated
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