LP5951 Series

150-mA, low-IQ, low-dropout voltage regulator with enable

Catalog

150-mA, low-IQ, low-dropout voltage regulator with enable

Part	Current - Supply (Max) [Max]	Voltage - Input (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Quiescent (Iq)	Protection Features	Output Configuration	PSRR [Min]	PSRR [Max]	Mounting Type	Voltage Dropout (Max) [Max]	Control Features	Supplier Device Package	Voltage - Output (Min/Fixed)	Current - Output	Package / Case	Number of Regulators	Output Type
Texas Instruments LP5951MF-2.8	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SOT-23-5	2.8 V	150 mA	SC-74A SOT-753	1	1.81 mOhm
Texas Instruments LP5951MG-2.5/NOPB	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SC-70-5	2.5 V	150 mA	5-TSSOP SC-70-5 SOT-353	1	1.81 mOhm
Texas Instruments LP5951MG-1.5	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SC-70-5	1.5 V	150 mA	5-TSSOP SC-70-5 SOT-353	1	1.81 mOhm
Texas Instruments LP5951MG-1.3	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SC-70-5	1.3 V	150 mA	5-TSSOP SC-70-5 SOT-353	1	1.81 mOhm
Texas Instruments LP5951MG-1.8/NOPB	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SC-70-5	1.8 V	150 mA	5-TSSOP SC-70-5 SOT-353	1	1.81 mOhm
Texas Instruments LP5951MGX-3.3	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SC-70-5	3.3 V	150 mA	5-TSSOP SC-70-5 SOT-353	1	1.81 mOhm
Texas Instruments LP5951MG-3.3	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SC-70-5	3.3 V	150 mA	5-TSSOP SC-70-5 SOT-353	1	1.81 mOhm
Texas Instruments LP5951MFX-2.8/NOPB	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SOT-23-5	2.8 V	150 mA	SC-74A SOT-753	1	1.81 mOhm
Texas Instruments LP5951MGX-2.8	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SC-70-5	2.8 V	150 mA	5-TSSOP SC-70-5 SOT-353	1	1.81 mOhm
Texas Instruments LP5951MFX-3.0/NOPB	70 µA	5.5 V	125 °C	-40 °C	55 µA	Over Current Over Temperature Short Circuit	Positive	50 dB	60 dB	Surface Mount	0.35 V	Enable	SOT-23-5		150 mA	SC-74A SOT-753	1	1.81 mOhm

Catalog

150-mA, low-IQ, low-dropout voltage regulator with enable

Key Features

• Input Voltage Range: 1.8 V to 5.5 VOutput Voltage Range: 1.3 V to 3.7 VExcellent Line Transient Response: ±2 mV (typical)Excellent PSRR: –60 dB at 1 kHz typicalLow Quiescent Current of 29 µA typicalSmall SC70-5 and SOT-23-5 PackagesFast Turnon Time of 30 µs typ.Typical < 1 nA Quiescent Current in ShutdownEnsured 150-mA Output CurrentLogic Controlled Enable 0.4 V/0.9 VGood Load Transient Response of 50 mVpp (typical)Thermal Overload and Short-Circuit Protection-40°C to 125°C Junction Temperature RangeInput Voltage Range: 1.8 V to 5.5 VOutput Voltage Range: 1.3 V to 3.7 VExcellent Line Transient Response: ±2 mV (typical)Excellent PSRR: –60 dB at 1 kHz typicalLow Quiescent Current of 29 µA typicalSmall SC70-5 and SOT-23-5 PackagesFast Turnon Time of 30 µs typ.Typical < 1 nA Quiescent Current in ShutdownEnsured 150-mA Output CurrentLogic Controlled Enable 0.4 V/0.9 VGood Load Transient Response of 50 mVpp (typical)Thermal Overload and Short-Circuit Protection-40°C to 125°C Junction Temperature Range

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 over-temperature 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. 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 over-temperature 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.