LP2957IT

Obsolete

Texas Instruments

IC REG LINEAR 5V 250MA TO220-5

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LP2957IT

Obsolete

Texas Instruments

IC REG LINEAR 5V 250MA TO220-5

Find alt

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Description Specifications Series Pricing CAD Documents

Description

General part information

LP2957 Series

The LP2957 is a 5V micropower voltage regulator with electronic shutdown, error flag, very low quiescent current (150 µA typical at 1 mA load), and very low dropout voltage (470 mV typical at 250 mA load current).

Output can be wired for snap-on/snap-off operation to eliminate transition voltage states where µP operation may be unpredictable.

Output crowbar (50 mA typical pull-down current) will bring down the output quickly when the regulator snaps off or when the shutdown function is activated.

Technical Specifications

Parameters and characteristics for this part

Specification	LP2957IT

Control Features	Enable
Current - Output	250 mA
Current - Quiescent (Iq)	200 µA
Current - Supply (Max)	33 mA
Mounting Type	Through Hole
Number of Regulators	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package / Case	TO-220-5 Formed Leads
Package Name	TO-220-5
Protection Features	Over Temperature, Reverse Polarity, Over Current
Voltage - Input (Max)	30 V p-p
Voltage - Output (Min/Fixed)	5 V
Voltage Dropout (Max)	0.8 V

LP2957 Series

250-mA, 30-V, low-dropout voltage regulator with high accuracy & power good

Part	Voltage - Input (Max)	Control Features	Output Configuration	Current - Output	Output Type	Mounting Type	Current - Quiescent (Iq)	Package / Case	Protection Features	Operating Temperature (Max)	Operating Temperature (Min)	Voltage Dropout (Max)	Package Name	Number of Regulators	Current - Supply (Max)	Voltage - Output (Min/Fixed)	Package Leads
Texas Instruments LP2957AIT	30 V p-p	Enable	Positive	250 mA	Fixed	Through Hole	200 µA	TO-220-5 Formed Leads	Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	TO-220-5	1	33 mA	5 V
Texas Instruments LP2957AIT/NOPB	30 V p-p	Enable	Positive	250 mA	Fixed	Through Hole	200 µA	TO-220-5 Formed Leads	Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	TO-220-5	1	33 mA	5 V
Texas Instruments LP2957IT	30 V p-p	Enable	Positive	250 mA	Fixed	Through Hole	200 µA	TO-220-5 Formed Leads	Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	TO-220-5	1	33 mA	5 V
Texas Instruments LP2957ISX	30 V p-p	Enable	Positive	250 mA	Fixed	Surface Mount	200 µA		Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	D2PAK TO-263 (DDPAK-5)	1	33 mA	5 V	5 Leads
Texas Instruments LP2957IS/NOPB	30 V p-p	Enable	Positive	250 mA	Fixed	Surface Mount	200 µA		Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	D2PAK DDPAK/TO-263-5 TO-263 (DDPAK-5)	1	33 mA	5 V	5 Leads
Texas Instruments LP2957AIT	30 V p-p	Enable	Positive	250 mA	Fixed	Through Hole	200 µA	TO-220-5 Formed Leads	Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	TO-220-5	1	33 mA	5 V
Texas Instruments LP2957AISX/NOPB	30 V p-p	Enable	Positive	250 mA	Fixed	Surface Mount	200 µA		Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	D2PAK TO-263 (DDPAK-5)	1	33 mA	5 V	5 Leads
Texas Instruments LP2957AISX	30 V p-p	Enable	Positive	250 mA	Fixed	Surface Mount	200 µA		Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	D2PAK TO-263 (DDPAK-5)	1	33 mA	5 V	5 Leads
Texas Instruments LP2957IS	30 V p-p	Enable	Positive	250 mA	Fixed	Surface Mount	200 µA		Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	D2PAK TO-263 (DDPAK-5)	1	33 mA	5 V	5 Leads
Texas Instruments LP2957AIS/NOPB	30 V p-p	Enable	Positive	250 mA	Fixed	Surface Mount	200 µA		Over Current Over Temperature Reverse Polarity	125 °C	-40 °C	0.8 V	D2PAK TO-263 (DDPAK-5)	1	33 mA	5 V	5 Leads

Pricing

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CAD

3D models and CAD resources for this part

Documents

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