LP2954A Datasheet (PDF) Download
National Semiconductor
LP2954A

Description

The LP2954 is a 5V micropower voltage regulator with very low quiescent current (90 µA typical at 1 mA load) and very low dropout voltage (typically 60 mV at light loads and 470 mV at 250 mA load current).

Key Features

  • n 5V output within 1.2% over temperature (A grade)
  • Adjustable 1.23 to 29V output voltage available (LP2954IM and LP2954AIM)
  • Guaranteed 250 mA output current
  • Extremely low quiescent current
  • Low dropout voltage
  • Reverse battery protection
  • Extremely tight line and load regulation
  • Very low temperature coefficient
  • Current and thermal limiting
  • Adjustable version adds error flag to warn of output drop and a logic-controlled shutdown

Applications

  • Low dropout battery-powered regulator