Integrated Circuits (ICs)

LP2951-03BN

Obsolete

Microchip Technology

FIXED/ADJUSTABLE POSITIVE LDO REGULATOR 1.24V MIN 29V MAX 0.6V DROPOUT BIPOLAR PDIP8

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Integrated Circuits (ICs)

LP2951-03BN

Obsolete

Microchip Technology

FIXED/ADJUSTABLE POSITIVE LDO REGULATOR 1.24V MIN 29V MAX 0.6V DROPOUT BIPOLAR PDIP8

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LP2951-03BN

Control Features	Error Flag, Enable
Current - Output	100 mA
Current - Quiescent (Iq)	150 çA
Current - Supply (Max) [Max]	14 mA
Mounting Type	Through Hole
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable (Fixed)
Package / Case	0.3 in
Package / Case	8-DIP
Package / Case	7.62 mm
Supplier Device Package	8-PDIP
Voltage - Input (Max) [Max]	30 V
Voltage - Output (Max)	29 V
Voltage - Output (Min/Fixed)	5 V
Voltage - Output (Min/Fixed)	1.24 V
Voltage Dropout (Max) [Max]	0.6 V

LP2951 Series

Low Dropout Regulator

Part	Voltage - Output (Max)	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed)	Mounting Type	Supplier Device Package	Voltage - Input (Max) [Max]	Number of Regulators	Current - Quiescent (Iq)	Current - Supply (Max) [Max]	Current - Output	Control Features	Voltage Dropout (Max) [Max]	Output Type	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case [y]	Package / Case [x]	Package / Case	Package / Case
Microchip Technology LP2951-02BM-TR	29 V	5 V	1.24 V	Surface Mount	8-SOIC	30 V	1	150 çA	14 mA	100 mA	Enable Error Flag	0.6 V	Adjustable (Fixed)	Positive	125 °C	-40 °C	8-SOIC	3.9 mm	0.154 in
Microchip Technology LP2951-02YM-TR	29 V	5 V	1.24 V	Surface Mount	8-SOIC	30 V	1	150 çA	14 mA	100 mA	Enable Error Flag	0.6 V	Adjustable (Fixed)	Positive	125 °C	-40 °C	8-SOIC	3.9 mm	0.154 in
Microchip Technology LP2951-02BN	29 V	5 V	1.24 V	Through Hole	8-PDIP	30 V	1	150 çA	14 mA	100 mA	Enable Error Flag	0.6 V	Adjustable (Fixed)	Positive	125 °C	-40 °C	8-DIP			0.3 in	7.62 mm
Microchip Technology LP2951-03YM	29 V	5 V	1.24 V	Surface Mount	8-SOIC	30 V	1	150 çA	14 mA	100 mA	Enable Error Flag	0.6 V	Adjustable (Fixed)	Positive	125 °C	-40 °C	8-SOIC	3.9 mm	0.154 in
Microchip Technology LP2951-03YM-TR	29 V	5 V	1.24 V	Surface Mount	8-SOIC	30 V	1	150 çA	14 mA	100 mA	Enable Error Flag	0.6 V	Adjustable (Fixed)	Positive	125 °C	-40 °C	8-SOIC	3.9 mm	0.154 in
Microchip Technology LP2951-03BN	29 V	5 V	1.24 V	Through Hole	8-PDIP	30 V	1	150 çA	14 mA	100 mA	Enable Error Flag	0.6 V	Adjustable (Fixed)	Positive	125 °C	-40 °C	8-DIP			0.3 in	7.62 mm
Microchip Technology LP2951-02BM	29 V	5 V	1.24 V	Surface Mount	8-SOIC	30 V	1	150 çA	14 mA	100 mA	Enable Error Flag	0.6 V	Adjustable (Fixed)	Positive	125 °C	-40 °C	8-SOIC	3.9 mm	0.154 in
Microchip Technology LP2951-4.8YM	29 V	4.85 V	1.24 V	Surface Mount	8-SOP	30 V	1	150 çA	14 mA	100 mA	Enable Error Flag	0.6 V	Adjustable (Fixed)	Positive	125 °C	-40 °C	8-SOIC	3.9 mm	0.154 in

Pricing

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

Distributor	Package	Quantity	$

Description

General part information

LP2951 Series

The LP2950 and LP2951 are micropower voltage regulators with very low dropout voltage (typically 40mV at light loads and 380mV at 100mA), and very low quiescent current (75µA typical). The quiescent current of the LP2950/LP2951 increases only slightly in dropout, thus prolonging battery life. This feature, among others, makes the LP2950 and LP2951 ideally suited for use in battery-powered systems.

Available in a 3-pin TO-92 package, the LP2950 is pin-compatible with the older 5V regulators. Additional system functions, such as programmable output voltage and logic-controlled shutdown, are available in the 8-pin DIP and 8-pin SOIC versions of the LP2951.

Additional features available with the LP2951 also include an error flag output that warns of a low output voltage, which is often due to failing batteries on the input. This may also be used as a power-on reset. A logic-compatible shutdown input is also available which enables the regulator to be switched on and off. This part may also be pin-strapped for a 5V output, or programmed from 1.24V to 29V with the use of two external resistors.

Documents

Technical documentation and resources