LR645 Datasheet (PDF) Download
Microchip Technology
LR645

Description

LR645 is a high-input voltage, low-output current, linear regulator that is available in two versions.

Key Features

  • Accepts inputs from 15 to 450V
  • Output currents: up to 3.0mA continuous, 30mA
  • Supply current typically 50µA
  • Line regulation typically 0.1mV/V
  • Output can be trimmed from 8.0 to 12V
  • Output current can be increased to 150mA with

Applications

  • Off-line SMPS startup circuits (pulse loads)