MAX1821 - WCDMA Cellular Phone 600mA Buck Regulators

Product Overview

Maxim Integrated Products

Datasheet Details

Part number	MAX1821
Manufacturer	Maxim Integrated Products
File Size	611.15 KB
Description	WCDMA Cellular Phone 600mA Buck Regulators
Datasheet	MAX1821 Datasheet
Additional preview pages of the MAX1821 datasheet.

Product details

Description

The MAX1820/MAX1821 low-dropout, pulse-width-modulated (PWM) DC-DC buck regulators are optimized to provide power to the power amplifier (PA) in WCDMA cell phones; however, they may be applied in many other applications where high efficiency is a priority.

Features

o Dynamically Adjustable Output from 0.4V to 3.4V (MAX1820) o Programmable Output from 1.25V to 5.5V (MAX1821) o SYNC to 13MHz External Clock (MAX1820X) o SYNC to 19.8MHz External Clock (MAX1820Y) o NO SYNC, Internal 1MHz Oscillator (MAX1820Z) o Low Quiescent Current 180µA (typ) in Skip Mode 0.1µA (typ) in Shutdown Mode o No External Schottky Diode Required o 600mA Guaranteed Output Current o 0% to 100% Duty-Cycle Operation o 150mV Dropout at 600mA Load (Including RDC of External Inductor) o µMA.

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Published: Jan 23, 2009 |