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LP2951-33DRG4 Datasheet(PDF) 3 Page - Texas Instruments

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Part # LP2951-33DRG4
Description  ADJUSTABLE MICROPOWER VOLTAGE REGULATORS WITH SHUTDOWN
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP2951-33DRG4 Datasheet(HTML) 3 Page - Texas Instruments

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background image
1
2
3
4
8
7
6
5
INPUT
FEEDBACK
VTAP
ERROR
OUTPUT
SENSE
SHUTDOWN
GND
LP2951
D OR P PACKAGE
(TOP VIEW)
OUTPUT
GND
INPUT
LP2950
LP PACKAGE
(BOTTOM VIEW)
LP2951
DRG PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
INPUT
FEEDBACK
V
TAP
ERROR
OUTPUT
SENSE
SHUTDOWN
GND
Thermal
Pad
LP2950, LP2951
www.ti.com
SLVS582I – APRIL 2006 – REVISED NOVEMBER 2014
5 Pin Configuration and Functions
Pin Functions
PIN
TYPE
DESCRIPTION
NAME
LP2950
LP2951
Active-low open-collector error output. Goes low when VOUT drops by 6% of its
ERROR
—
5
O
nominal value.
Determines the output voltage. Connect to VTAP (with OUTPUT tied to SENSE)
FEEDBACK
—
7
I
to output the fixed voltage corresponding to the part version, or connect to a
resistor divider to adjust the output voltage.
GND
2
4
—
Ground
INPUT
3
8
I
Supply input
OUTPUT
1
1
O
Voltage output.
Senses the output voltage. Connect to OUTPUT (with FEEDBACK tied to VTAP)
SENSE
—
2
I
to output the voltage corresponding to the part version.
SHUTDOWN
—
3
I
Active-high input. Shuts down the device.
VTAP
—
6
O
Tie to FEEDBACK to output the fixed voltage corresponding to the part version.
Copyright © 2006–2014, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Links: LP2950 LP2951


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