LP5951MFX-1.8/NOPB

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.

Applications

• General Purpose

Key features

• 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