Datasheet4U Logo Datasheet4U.com

A4406 - Constant On-Time Buck Regulator

General Description

The A4406 is an automotive power management IC that uses a high frequency constant on-time 5.45 V pre-regulator to supply an internal 5 V linear regulator and a 3.3 V linear DMOS driver.

Key Features

  • AEC-Q100 Grade 0 qualified.
  • Internal buck pre-regulator followed by LDO outputs.
  • 5.5 to 36 V VIN operating range (50 V maximum); for start/stop, cold crank, and load dump requirements.
  • 2.2 MHz constant on-time buck regulator.
  • 50 V absolute maximum input voltage for surges.
  • Valley current sensing achieves shortest buck on-times.
  • 5.5 to 46 V input voltage range.
  • 40°C to 150°C junction temperature range.
  • Powe.

📥 Download Datasheet

Datasheet Details

Part number A4406
Manufacturer Allegro Micro Systems
File Size 3.22 MB
Description Constant On-Time Buck Regulator
Datasheet download datasheet A4406 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
A4403 Valley Current Mode Control Buck Converter Allegro
A44 NPN Silicon Epitaxial Planar Transistor GME
A44 NPN Transistor KOO CHIN
A44 HIGH VOLTAGE AMPLIFIER Elite
A44 NPN Transistor SeCoS

Other Datasheets by Allegro Micro Systems

Part Number Description
A4401 Automotive Quasi-Resonant Flyback Controller
A4402 Constant On-Time Buck Converter
A4405 Constant On-Time Buck Regulator
A4407 2.2 MHz Constant On-Time Buck Regulator
A4408 Adjustable Frequency Buck or Buck-Boost Pre-Regulator

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
A4406 Constant On-Time Buck Regulator with External and Internal Linear Regulator FEATURES AND BENEFITS • AEC-Q100 Grade 0 qualified • Internal buck pre-regulator followed by LDO outputs • 5.5 to 36 V VIN operating range (50 V maximum); for start/stop, cold crank, and load dump requirements • 2.2 MHz constant on-time buck regulator • 50 V absolute maximum input voltage for surges • Valley current sensing achieves shortest buck on-times • 5.5 to 46 V input voltage range • −40°C to 150°C junction temperature range • Power-on reset (NPOR pin) with adjustable rising delay • 5 V (V5P pin) internal low dropout tracking linear regulator with both overcurrent foldback and short-to-battery protection • 3.