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LP5951
SNVS345G – JUNE 2006 – ...
Product Folder
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LP5951
SNVS345G – JUNE 2006 – REVISED DECEMBER 2014
LP5951 Micropower, 150-mA Low-Dropout
CMOS Voltage Regulator
1 Features
1 Input
Voltage Range: 1.8 V to 5.5 V Output
Voltage Range: 1.3 V to 3.7 V Excellent Line Transient Response: ±2 mV
(typical) Excellent PSRR: –60 dB at 1 kHz typical Low Quiescent Current of 29 µA typical Small SC70-5 and SOT-23-5 Packages Fast Turnon Time of 30 µs typ. Typical < 1 nA Quiescent Current in Shutdown Ensured 150-mA Output Current Logic Controlled Enable 0.4 V/0.9 V Good Load Transient Response of 50 mVpp
(typical) Thermal Overload and Short-Circuit Protection -40°C to 125°C Junction Temperature Range
2 Applications
General Purpose
3 Description
The LP5951 regulator is designed to meet the requirements of portable battery-powered systems providing a regulated output
voltage and low quiescent current. When switched to shutdown mode via a logic signal at the Enable (EN) pin, the power consumption is reduced to virtually zero.
The LP5951 is designed to be stable with small 1-µF ceramic
capacitors. The device also features internal protection against short-circuit currents and overtemperature conditions.
Performance is specified for a –40°C to 125°C temperature range.
The device is available in fixed output
voltages in the range of 1.3 V to 3.7 V. For availability, please contact your local TI sales office.
Device Information(1)
...