Datasheet4U Logo Datasheet4U.com

MAX8805Z Datasheet PWM Step-Down Converters

Manufacturer: Maxim Integrated (now Analog Devices)

Download the MAX8805Z datasheet PDF. This datasheet also includes the MAX8805Y variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX8805Y_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

General Description

The MAX8805Y/MAX8805Z high-frequency step-down converters are optimized for dynamically powering the power amplifier (PA) in WCDMA or NCDMA handsets.

The devices integrate a high-efficiency PWM step-down converter for medium- and low-power transmission, and a 60mΩ typical bypass FET to power the PA directly from the battery during high-power transmission.

Dual 200mA low-noise, high-PSRR low-dropout regulators (LDOs) for PA biasing are also integrated.

Overview

19-0777; Rev 0; 4/07 600mA PWM Step-Down Converters in 2mm x 2mm WLP for WCDMA PA.

Key Features

  • PA Step-Down Converter 7.5µs (typ) Settling Time for 0.8V to 3.4V Output Voltage Change Dynamic Output Voltage Setting from 0.4V to VBATT 60mΩ pFET and 100% Duty Cycle for Low Dropout 2MHz or 4MHz Switching Frequency Low Output-Voltage Ripple 600mA Output Drive Capability 2% Maximum Accuracy Tiny External Components.
  • Dual Low-Noise LDOs Low 35µVRMS (typ) Output Noise High 70dB (typ) PSRR Guaranteed 200mA Output Drive Capability Individual ON/OFF Control.
  • Low 0.1µA Shu.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX8805W 600mA/650mA PWM Step-Down Converters
MAX8805X 600mA/650mA PWM Step-Down Converters
MAX8805Y 600mA/650mA PWM Step-Down Converters
MAX8804W USB/AC Adapter Chargers
MAX8804Y USB/AC Adapter Chargers
MAX8804Z USB/AC Adapter Chargers
MAX8808X 1A Linear Li+ Battery Chargers
MAX8808Y 1A Linear Li+ Battery Chargers
MAX8808Z 1A Linear Li+ Battery Chargers
MAX8811 High SPeed Dual Phase Driver