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LR645 Datasheet High-input Voltage Smps Start-up/linear Regulator

Manufacturer: Microchip Technology

Overview: LR645 High-Input Voltage SMPS, Start-up/Linear Regulator.

General Description

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

A 3-terminal, fixed-output voltage version is available in TO-92, TO220 and SOT-89 packages, as well as an adjustable voltage version available in an 8-lead SOIC package.

The 3-terminal version of LR645 functions like any other low-voltage, 3-terminal regulator except it allows the use of much higher-input voltages.

Key Features

  • Accepts inputs from 15 to 450V.
  • Output currents: up to 3.0mA continuous, 30mA peak.
  • 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 external FET.

LR645 Distributor