A8654 - 2MHz Synchronous Buck Regulator

Description

The A8654 is a high output current synchronous buck regulator that integrates low RDSON high-side and low-side N-channel MOSFETs.

The A8654 incorporates PWM current-mode control to provide simple compensation, excellent loop stability and fast transient response.

Features

Automotive AEC-Q100 qualified.
Operating voltage range: 4 to 36 V.
UVLO STOP threshold: 2.6 VTYP.
Maximized duty cycle for low-dropout operation.
Withstands surge voltages up to 40 V.
Capable of 3 A steady-state output current.
Integrated high-side and low-side switching MOSFETs.
Adjustable switching frequency (fSW): 100 kHz to 2.2 MHz.
Synchronization capability to external clock: 100 kHz to 2.2 MHz.
Freq.

Allegro

📥 Download Datasheet

Datasheet Details

Part number	A8654
Manufacturer	Allegro
File Size	1.11 MB
Description	2MHz Synchronous Buck Regulator
Datasheet	A8654 Datasheet
Additional preview pages of the A8654 datasheet.

📁 Similar Datasheet

A8600 - Quadruple Output Regulator (Allegro MicroSystems)
A8600 - WHITE LED BACKLIGHT DRIVER SIX-STRING (AiT Semiconductor)
A8697 - Wide Input Voltage 4.0A Step Down Regulator (Allegro MicroSystems)
A8698 - Wide Input Voltage 3.0 A Step Down Regulator (Allegro MicroSystems)

Other Datasheets by Allegro

A8650 - Adjustable Frequency 2A Synchronous Buck Regulator
A8651 - Adjustable Frequency Dual Synchronous 2A / 2A Buck Regulator
A8652 - Synchronous USB Buck Regulator
A8653 - Synchronous USB Buck Regulator
A8601 - Multiple-Output Regulator
A8603 - Multiple-Output Regulator
A8660 - Synchronous Buck Controller
A8672 - Fixed Frequency High Current Synchronous Buck Regulator

Full PDF Text Transcription

Click to expand full text

A8654 Wide Input Voltage, Adjustable Frequency, 3 A, 2 MHz Synchronous Buck Regulator FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • Operating voltage range: 4 to 36 V • UVLO STOP threshold: 2.6 VTYP • Maximized duty cycle for low-dropout operation • Withstands surge voltages up to 40 V • Capable of 3 A steady-state output current • Integrated high-side and low-side switching MOSFETs • Adjustable switching frequency (fSW): 100 kHz to 2.2 MHz • Synchronization capability to external clock: 100 kHz to 2.2 MHz • Frequency dithering for lower EMI signature • External adjustable compensation network • Soft-start time externally set via the SS pin • Pre-bias startup compatible • Active-low, power-on reset (NPOR) output Continued on next page...

Published: Dec 30, 2024 |