DatasheetsPDF.com

A8591 Datasheet

Part Number A8591
Manufacturers Allegro
Logo Allegro
Description 2A Buck Regulator
Datasheet A8591 DatasheetA8591 Datasheet (PDF)

A8591 Wide Input Voltage, 2 A Buck Regulator Family with Low-IQ Mode FEATURES AND BENEFITS • 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 PFM mode 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 • Adj.

  A8591   A8591






Part Number A8590
Manufacturers Allegro
Logo Allegro
Description 3.0A Asynchronous Buck Regulator
Datasheet A8591 DatasheetA8590 Datasheet (PDF)

A8590 Wide Input Voltage, 2.4 MHz, 3.0 Amp Asynchronous Buck Regulator With Low-IQ Standby, Sleep Mode, External Synchronization, and NPOR Output FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • Withstands surge voltages up to 40 V • Operates as low as 3.4 VIN (typ) with VIN decreasing • Uses pulse frequency modulation (PFM) to draw only tens of microamperes from VIN while maintaining keepalive VOUT • PWM/PFM mode control input pin • Delivers up to 3.0 A of output current with integrate.

  A8591   A8591







2A Buck Regulator

A8591 Wide Input Voltage, 2 A Buck Regulator Family with Low-IQ Mode FEATURES AND BENEFITS • 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 PFM mode 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 Continued on the next page… PACKAGE: 10-Pin, 3 × 3 mm Wettable Flank DFN with Exposed Thermal Pad (suffix EJ) Not to scale DESCRIPTION TheA8591 is designed to provide the power supply requirements of next generation car audio and infotainment systems. The A8591 provides all the control and protection circuitry to produce a high-current regulator with ±1% output voltage accuracy. The A8591 employs current-mode control to provide simple compensation, excellent stability, and fast transient response. The A8591 employs pulse-frequency modulation (PFM) to draw less than 33 µA from 12 VIN while supplying 5 V/40 µA (A8591, 5 VOUT), or less than 24 μA from 12 VIN while su.


2019-10-30 : P87C51RA2    HC5503    G65SC816    CS49300    CS49310    CS49311    CS49312    GS175T48    AD14060    AD14060L   


@ 2014 :: Datasheetspdf.com ::
Semiconductors datasheet search & download site (Privacy Policy & Contact)