Texas Instruments LM34923 Step Down Switching Regulator

Texas Instruments LM34923 80V, 600mA Step Down Switching Regulator features all of the functions needed to implement a low-cost, efficient buck bias regulator. TI LM34923 Step Down Switching Regulator is a high voltage device containing an 80V N-channel MOSFET switch and a startup regulator. LM34923 requires no loop compensation, resulting in a fast transient response. The operating frequency remains constant with line and load variations. This Texas Instruments LM34923 is ideal for use in non-isolated telecommunication buck regulators and secondary high voltage post regulators as well as +42V automotive systems.

Features

  • Operating input voltage range: 6V to 75V
  • Integrated 80V, N-Channel Buck Switch
  • Internal start-up regulator
  • No Loop compensation required
  • Ultra-Fast Transient Response
  • Operating frequency remains constant with line and load variations
  • Adjustable output voltage from 2.5V
  • Precision internal reference, ±2.5%
  • Intelligent current limit reduces foldback
  • Programmable Input UV detector with status flag output
  • Pre-charge switch enables bootstrap gate drive with no load
  • Thermal shutdown

Applications

  • Non-Isolated Telecommunication Buck Regulator
  • Secondary High Voltage Post Regulator
  • +42V Automotive Systems

Typical Application

Application Circuit Diagram - Texas Instruments LM34923 Step Down Switching Regulator
Veröffentlichungsdatum: 2012-02-28 | Aktualisiert: 2022-03-11