LM2931AM-5.0/NOPB

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Texas Instruments

100-MA, 26-V, HIGH-PSRR, LOW-DROPOUT VOLTAGE REGULATOR

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LM2931AM-5.0/NOPB

Active

Texas Instruments

100-MA, 26-V, HIGH-PSRR, LOW-DROPOUT VOLTAGE REGULATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM2931-N Series

The LM2931-N positive voltage regulator features a very low quiescent current of 1mA or less when supplying 10mA loads. This unique characteristic and the extremely low input-output differential required for proper regulation (0.2V for output currents of 10mA) make the LM2931-N the ideal regulator for standby power systems. Applications include memory standby circuits, CMOS and other low power processor power supplies as well as systems demanding as much as 100mA of output current.

Designed originally for automotive applications, the LM2931-N and all regulated circuitry are protected from reverse battery installations or 2 battery jumps. During line transients, such as a load dump (60V) when the input voltage to the regulator can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both internal circuits and the load. The LM2931-N cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

The LM2931-N family includes a fixed 5V output (±3.8% tolerance for A grade) or an adjustable output with ON/OFF pin. Both versions are available in a TO-220 power package, DDPAK/TO-263 surface mount package, and an 8-lead SOIC package. The fixed output version is also available in the TO-92 plastic package.

Technical Specifications

Parameters and characteristics for this part

Specification	LM2931AM-5.0/NOPB

Current - Output	100 mA
Current - Quiescent (Iq)	15 mA
Current - Supply (Max)	30 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package Length	0.154 in
Package Name	8-SOIC
Package Width	3.9 mm
Protection Features	Over Temperature, Reverse Polarity, Short Circuit
PSRR	80 dB
Voltage - Input (Max)	26 V
Voltage - Output (Min/Fixed)	5 V
Voltage Dropout (Max)	0.3 V

LM2931-N Series

100-mA, 26-V, high-PSRR, low-dropout voltage regulator

Part	Current - Output	Package Name	Protection Features	Voltage - Input (Max)	Operating Temperature (Min)	Operating Temperature (Max)	PSRR	Voltage - Output (Min/Fixed)	Number of Regulators	Mounting Type	Output Type	Package / Case	Voltage Dropout (Max)	Output Configuration	Current - Supply (Max)	Current - Quiescent (Iq)	Package Length	Package Width	Package Leads	Voltage - Output (Max)
Texas Instruments LM2931SX-5.0	100 mA	TO-263 (DDPAK-3)	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	55 dB	5 V	1	Surface Mount	Fixed	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	0.3 V	Positive	15 mA	1 mA
Texas Instruments LM2931AS-5.0	100 mA	TO-263 (DDPAK-3)	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	80 dB	5 V	1	Surface Mount	Fixed	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	0.3 V	Positive	30 mA	15 mA
Texas Instruments LM2931MX-5.0/NOPB	100 mA	8-SOIC	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	55 dB	5 V	1	Surface Mount	Fixed		0.3 V	Positive	15 mA	1 mA	0.154 in	3.9 mm
Texas Instruments LM2931AZ-5.0/LFT1	100 mA	TO-92-3	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	80 dB	5 V	1	Through Hole	Fixed	TO-226-3 TO-92-3 (TO-226AA)	0.3 V	Positive	30 mA	15 mA
Texas Instruments LM2931AZ-5.0/NOPB	100 mA	TO-92-3	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	80 dB	5 V	1	Through Hole	Fixed	TO-226-3 TO-92-3 (TO-226AA)	0.3 V	Positive	30 mA	15 mA
Texas Instruments LM2931AM-5.0	100 mA	8-SOIC	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	80 dB	5 V	1	Surface Mount	Fixed		0.3 V	Positive	30 mA	15 mA	0.154 in	3.9 mm
Texas Instruments LM2931S-5.0	100 mA	DDPAK/TO-263-3	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	55 dB	5 V	1	Surface Mount	Fixed	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	0.3 V	Positive	15 mA	1 mA
Texas Instruments LM2931S-5.0/NOPB	100 mA	TO-263 (DDPAK-3)	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	55 dB	5 V	1	Surface Mount	Fixed	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	0.3 V	Positive	15 mA	1 mA
Texas Instruments LM2931CS	100 mA	D2PAK TO-263 (DDPAK-5)	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	55 dB	3 V	1	Surface Mount	Adjustable		0.3 V	Positive	15 mA	1 mA			5 Leads	24 V
Texas Instruments LM2931CT/LF03	100 mA	TO-220-3	Over Temperature Reverse Polarity Short Circuit	26 V	-40 °C	85 °C	55 dB	3 V	1	Through Hole	Adjustable	TO-220-3	0.3 V	Positive	15 mA	1 mA				24 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

TO-92 Packing Options / Ordering Instructions (Rev. A)

High-Efficiency Reg has Low Drop-Out Voltage (Rev. B)

AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B)

LM2931 Series Low Dropout Regulators datasheet (Rev. G)