Allegro Microsystems A8591-1

Description

It is Wide Input Voltage, 2 A BuckRegulator Family with Low-IQ Mode/The A8585 family is designed to provide the power supplyrequirements of next generation car audio and infotainmentsystems. The A8585 family provides all the control andprotection circuitry to produce a hig

Features

• Automotive AEC-Q100 qualified
• Withstands surge input to 40 VIN for load dump
• Operates down to 3.4 VIN (typ), 3.6 VIN (max) for idle stop
• Utilizes pulse-frequency modulation (PFM) for low-IQ mode
• 10 μA Sleep mode (automatic PWM / Low-IQ PFMmode selection)
• Fixed output voltage options: 3.3 or 5 V with ±1%accuracy
• Delivers up to 2 A of output current
• Integrated 110 mΩ high-side MOSFET
• Adjustable switching frequency from 300 kHz to 2.4 MHz
• EMI reduction features:□□Frequency dithering□□Controlled switching node
• External synchronization capability
• Maximum duty cycle for low dropout
• Active low NPOR output with 7.5 ms delay
• Pre-bias startup capable: VOUT increases monotonically,will not cause a reset

Typical applications

• Home audio
• HVAC
• Network and telecom
• Audio systems
• Industrial
• Navigation
• Instrument clusters