LP2957AIS/NOPB

Obsolete

Texas Instruments

IC REG LIN 5V 250MA DDPAK/TO263

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LP2957AIS/NOPB

Obsolete

Texas Instruments

IC REG LIN 5V 250MA DDPAK/TO263

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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	LP2957AIS/NOPB

Control Features	Enable
Current - Output	250 mA
Current - Quiescent (Iq)	200 µA
Current - Supply (Max)	33 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package Leads	5 Leads
Package Name	D2PAK, TO-263 (DDPAK-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

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Documents

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