LM2931AD33R

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STMicroelectronics

VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT FUNCTION

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LM2931AD33R

Active

STMicroelectronics

VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT FUNCTION

Deep-Dive with AI

DocumentsDatasheet Product Change Notice EN

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM2931AD33R

Current - Output	100 mA
Current - Quiescent (Iq)	1 mA
Current - Supply (Max) [Max]	30 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
PSRR	78 dB
Supplier Device Package	8-SOIC
Voltage - Input (Max) [Max]	26 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage Dropout (Max) [Max]	0.6 V

LM2931 Series

Part	PSRR	Current - Output	Output Type	Voltage - Input (Max) [Max]	Supplier Device Package	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Output (Min/Fixed)	Output Configuration	Operating Temperature [Min]	Operating Temperature [Max]	Current - Quiescent (Iq)	Mounting Type	Current - Supply (Max) [Max]	Voltage Dropout (Max) [Max]	Number of Regulators	Protection Features
STMicroelectronics LM2931AD33R	78 dB	100 mA	1.81 mOhm	26 V	8-SOIC	8-SOIC	3.9 mm	0.154 in	3.3 V	Positive	-40 °C	125 ¯C	1 mA	Surface Mount	30 mA	0.6 V	1
STMicroelectronics LM2931BZ50	75 dB	100 mA	1.81 mOhm	26 V	TO-92-3	TO-226-3 TO-92-3			5 V	Positive	-40 °C	125 ¯C	1 mA	Through Hole	30 mA	0.6 V	1	Over Current Over Temperature

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.88
		10	$ 0.78
		25	$ 0.74
		100	$ 0.61
		250	$ 0.57
		500	$ 0.50
		1000	$ 0.47
	Digi-Reel®	1	$ 0.88
		10	$ 0.78
		25	$ 0.74
		100	$ 0.61
		250	$ 0.57
		500	$ 0.50
		1000	$ 0.47
	Tape & Reel (TR)	2500	$ 0.47
Newark	Each (Supplied on Cut Tape)	1	$ 0.65
		10	$ 0.47
		25	$ 0.46
		50	$ 0.45
		100	$ 0.43

Description

General part information

LM2931 Series

The LM2931 are very low drop regulators. The very low drop voltage and the low quiescent current make them particular suitable for low noise, low power applications and in battery-powered systems. In the 8-pin configuration (SO-8), fully compatible with the older L78L family, a shutdown logic control function is available. This means that when the device is used as a local regulator it is possible to put a part of the board in standby, decreasing total power consumption. Ideal for automotive applications, LM2931 is protected from reverse battery installations or 2 battery jumps. During the transient, such as a 60 V load dump, when the input voltage can exceed the specified maximum operating input voltage of 26 V, the regulator automatically shuts down to protect both internal circuitry and the load.