ER3105DI - Synchronous Buck Regulator

Altera

ER3105DI Datasheet Preview — Preview of ER3105DI PDF

Datasheet Details

Part number	ER3105DI
Manufacturer	Altera
File Size	1.30 MB
Description	Synchronous Buck Regulator
Datasheet	ER3105DI-Altera.pdf

ER3105DI Product details

Description

PIN NUMBER 1 SYMBOL SS 2 SYNC 3 4 5 6 7 8 9 10 11 12 EPAD BOOT PVIN SW PGND EN POK AVINO FB COMP FSW GND PIN DESCRIPTION The SS pin controls the soft-start ramp time of the output.A single capacitor from the SS pin to ground determines the output ramp rate.See “Soft Start” on page 16 for soft-start details.If the SS pin is tied to AVINO, an internal soft-start of 2ms will be used.Synchronization and light load operational mode sel

Features

a PFM mode for improved efficiency at light loads. This feature can be disabled if forced PWM mode is desired. The part switches at a default frequency of 500kHz but may also be programmed using an external resistor from 300kHz to 2MHz. The ER3105DI has the ability to utilize internal or external compensation. By integrating both NMOS devices and providing internal configuration options, minimal external components are required, reducing BOM count and complexity of design. With the wide VIN rang.

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Published: Oct 21, 2019 |