Specification	LP4951CMX/NOPB

Control Features	Enable
Current - Output	100 mA
Current - Quiescent (Iq)	170 µA
Current - Supply (Max) [Max]	19 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Protection Features	Over Current, Over Temperature
Supplier Device Package	8-SOIC
Voltage - Input (Max) [Max]	30 V
Voltage - Output (Max) [Max]	30 V
Voltage - Output (Min/Fixed)	1.235 V
Voltage Dropout (Max) [Max]	0.6 V

LP4951C Series

100-mA, 30-V, adjustable low-dropout voltage regulator with power good & enable

Part	Current - Supply (Max) [Max]	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Package / Case	Package / Case [y]	Package / Case [x]	Output Configuration	Current - Quiescent (Iq)	Control Features	Voltage - Output (Max) [Max]	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Voltage Dropout (Max) [Max]	Current - Output	Mounting Type	Number of Regulators	Protection Features
Texas Instruments LP4951CMX/NOPB	19 mA	Adjustable	125 °C	-40 °C	8-SOIC	8-SOIC	3.9 mm	0.154 in	Positive	170 µA	Enable	30 V	30 V	1.235 V	0.6 V	100 mA	Surface Mount	1	Over Current Over Temperature
Texas Instruments LP4951CMX	19 mA	Adjustable	125 °C	-40 °C	8-SOIC	8-SOIC	3.9 mm	0.154 in	Positive	170 µA	Enable	30 V	30 V	1.235 V	0.6 V	100 mA	Surface Mount	1	Over Current Over Temperature
Texas Instruments LP4951CM	19 mA	Adjustable	125 °C	-40 °C	8-SOIC	8-SOIC	3.9 mm	0.154 in	Positive	170 µA	Enable	30 V	30 V	1.235 V	0.6 V	100 mA	Surface Mount	1	Over Current Over Temperature
Texas Instruments LP4951CM/NOPB	19 mA	Adjustable	125 °C	-40 °C	8-SOIC	8-SOIC	3.9 mm	0.154 in	Positive	170 µA	Enable	30 V	30 V	1.235 V	0.6 V	100 mA	Surface Mount	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	$ 0.96
		10	$ 0.86
		25	$ 0.81
		100	$ 0.67
		250	$ 0.63
		500	$ 0.55
		1000	$ 0.44
	Digi-Reel®	1	$ 0.96
		10	$ 0.86
		25	$ 0.81
		100	$ 0.67
		250	$ 0.63
		500	$ 0.55
		1000	$ 0.44
	Tape & Reel (TR)	2500	$ 0.36
Texas Instruments	LARGE T&R	1	$ 0.71
		100	$ 0.55
		250	$ 0.40
		1000	$ 0.29

Description

General part information

LP4951C Series

The LP4950C and LP4951C are micropower voltage regulators with very low quiescent current (75μA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at 100mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the LP4950C/LP4951C increases only slightly in dropout, prolonging battery life.

The LP4950C in the popular 3-pin TO-92 package is pin compatible with older 5V regulators. The 8-lead LP4951C is available in a plastic surface mount package and offers additional system functions.

One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5V output or programmed from 1.24V to 29V with an external pair of resistors.

Documents

Technical documentation and resources

LP4950C-5V and LP4951C Adjustable Micropower Voltage Regulators datasheet (Rev. C)

Data sheet