LP2980IM5-3.3/NOPB Power Path Management IC LDO Voltage Regulators MICROPOWER 50 MA ULTRA LDO REGULATOR

1 Features

• 2.1-V to 16-V Input Voltage Range

• 5-V, 4.7-V, 3.3-V, 3-V, and 2.5-V Output Versions

• Ultra-Low-Dropout Voltage

• Output Voltage Accuracy 0.5% (A Grade)

• Ensured 50-mA Output Current

• Requires Only 1-μF External Capacitance

• < 1-μA Quiescent Current When Shutdown

• Low Ground Pin Current at All Load Currents

• High Peak Current Capability (150 mA Typical)

• Wide Supply Voltage Range (16 V Maximum)

• Fast Dynamic Response to Line and Load

• Low ZOUT Over Wide Frequency Range

• Overtemperature and Overcurrent Protection

• −40°C to 125°C Junction Temperature Range

2 Applications

• Cellular Phone

• Palmtop/Laptop Computer

• Personal Digital Assistant (PDA)

• Camcorder, Personal Stereo, Camera

3 Description

The LP2980-N is a 50-mA, fixed-output voltage regulator designed specifically to meet the requirements of battery-powered applications.

Using an optimized VIP (Vertically Integrated PNP) process, the LP2980-N delivers unequaled performance in all specifications critical to battery- powered designs:

Dropout voltage: Typically 120 mV at 50-mA load, and 7 mV at 1-mA load.

Ground pin current: Typically 375 μA at 50-mA load, and 80 μA at 1-mA load.

Sleep mode: Less than 1-μA quiescent current when ON/OFF pin is pulled to less than 0.18 V.

Minimum part count: Requires only a 1-μF capacitor on the regulator output.

Precision output: Initial output voltage tolerance of ±0.5% (A grade).

5-V, 4.7-V, 3.3-V, 3-V, and 2.5-V versions available as standard products.

Device Information