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MAX1820 - WCDMA Cellular Phone 600mA Buck Regulators

Download the MAX1820 datasheet PDF. This datasheet also covers the MAX1821 variant, as both devices belong to the same wcdma cellular phone 600ma buck regulators family and are provided as variant models within a single manufacturer datasheet.

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.

The supply voltage range is from 2.6V to 5.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1821_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (Analog Devices)

Part Number Description
MAX1821 WCDMA Cellular Phone 600mA Buck Regulators
MAX1823 Dual USB Switch
MAX1823A Dual USB Switch
MAX1823B Dual USB Switch
MAX1823H Dual USB Switch

Full PDF Text Transcription

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19-2011; Rev 2; 7/02 KIT ATION EVALU E L www.DataSheet4U.com B AVAILA WCDMA Cellular Phone 600mA Buck Regulators 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.
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