LP2985IM5-2.8

The LP2985-N low noise linear (LDO) regulator delivers up to 150-mA output current and only requires 300-mV dropout voltage of input to output. Using an optimized vertically integrated PNP (VIP) process, the LP2985-N delivers unequaled performance for all battery-powered designs. The LP2985-N device provides 1% tolerance precision output voltage with only 75-μA quiescent current at 1-mA load and 850-μA at 150-mA load. By adding a 10-nF bypass capacitor, the output noise can be reduced to 30-μV_RMS in a 30-kHz bandwidth. The LP2985-N is designed to work with a ceramic output capacitor with equivalent series resistance (ESR) as low as 5-mΩ. The device is available with fixed output voltage from 2.5-V to 6.1 V.

Applications

• Cellular Phones
• Palmtop and Laptop Computers
• Personal Digital Assistants (PDA)
• Camcorders
• Personal Stereos
• Cameras

Key features

• Input Voltage Range: 2.5 V to 16 V
• Ultra Low-Dropout Voltage Ensured 150 mA Output Current
• Requires Minimum External Components
• Stable With Low-ESR Output Capacitor
• <1 μA Quiescent Current When Shut Down
• Low Ground Pin Current at All Loads
• Output Voltage Accuracy 1% (A Grade)
• High Peak Current Capability
• Low Z_OUT; 0.3 Ω Typical (10 Hz to 1 MHz)
• Overtemperature and Overcurrent Protection
• -40°C to 125°C Junction Temperature Range
• Custom Voltages Available