UA78S40 Datasheet

UA78S40 UNIVERSAL SWITCHING REGULATOR SUBSYSTEM

Universal Switching Regulator Subsystem The µA78S40 is a switching regulator subsystem, consisting of a temperature compensated voltage reference, controlled–duty cycle oscillator with an active current limit circuit, comparator, high–current and high–voltage output switch, capable of 1.5 A and 40 V.

Features

are wide
  –supply voltage range, low standby current, high efficiency and low drift. The µA78S40 is available in commercial (0° to + 70°C), and automotive (
  –40° to + 85°C) temperature ranges. Some of the applications include use in step
  –up, step
  –down, and inverting regulators, with extremely good results obtained in battery
  – operated systems.
• Output Adjustable from 1.25 V to 40 V .