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LP2951 - Micropower Voltage Regulators

Download the LP2951 datasheet PDF. This datasheet also covers the LP2951ACS variant, as both devices belong to the same micropower voltage regulators family and are provided as variant models within a single manufacturer datasheet.

Description

The LP2950 and LP2951 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.

Features

  • n 5V, 3V, and 3.3V versions available n High accuracy output voltage n Guaranteed 100mA output current n Extremely low quiescent current n Low dropout voltage n Extremely tight load and line regulation n Very low temperature coefficient n Use as Regulator or Reference n Needs minimum capacitance for stability n Current and Thermal Limiting n Stable with low-ESR output capacitors LP2951 versions only n Error flag warns of output dropout n Logic-controlled electronic shutdown n Output programmable.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LP2951ACS_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LP2951 150mA ADJUSTABLE VOLTAGE REGULATOR Semtech Corporation
LP2951 Adjustable Micro Power Voltage Regulator Fairchild Semiconductor
LP2951 100mA Low-Dropout Voltage Regulator Micrel Semiconductor
LP2951 Low Dropout Voltage Regulators MaxLinear
LP2951 LOW DROPOUT VOLTAGE REGULATORS Exar

Other Datasheets by National Semiconductor (Texas Instruments)

Part Number Description
LP2950 Micropower Voltage Regulators
LP2952 Adjustable Micropower Low-Dropout Voltage Regulators
LP2952A Adjustable Micropower Low-Dropout Voltage Regulators
LP2953 Adjustable Micropower Low-Dropout Voltage Regulators
LP2953A Adjustable Micropower Low-Dropout Voltage Regulators

Full PDF Text Transcription

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LP2950/LP2951 Series of Adjustable Micropower Voltage Regulators September 2003 LP2950/LP2951 Series of Adjustable Micropower Voltage Regulators General Description The LP2950 and LP2951 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 LP2950/ LP2951 increases only slightly in dropout, prolonging battery life. The LP2950-5.0 is available in the surface-mount D-Pak package, and in the popular 3-pin TO-92 package for pincompatibility with older 5V regulators. The 8-lead LP2951 is available in plastic, ceramic dual-in-line, or metal can packages and offers additional system functions.
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