LP5951 Overview
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.
LP5951 Key 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
- 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
