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MAX17085B Datasheet Integrated Charger Dual Main Step-Down Controllers and Dual LDO Regulators

Manufacturer: Maxim Integrated (now Analog Devices)

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General Description

The MAX17085B is an all-in-one notebook power solution integrating a multichemistry battery charger, dual fixedoutput Quick-PWMK step-down controllers, and dual keep-alive linear regulators: Charger: The high-frequency (~1.4MHz) multichemistry battery charger uses a current-mode, fixed inductor current ripple architecture that significantly reduces component size and cost.

Low-offset sense amplifiers allow the use of low-value sense resistors for charging and input current limit.

The charger uses n-channel switching MOSFETs.

Overview

19-5135; Rev 0; 1/10 www.DataSheet4U.com TION KIT EVALUA BLE IL AVA A Integrated Charger, Dual Main Step-Down Controllers, and Dual LDO.

Key Features

  • S All-in-One Charger Plus Dual Main Step-Down Controllers S 5V/100mA and 3.3V/50mA LDO Regulators S Main Dual Quick-PWM with Fast Transient Response and Extended On-Time 300kHz to 800kHz Switching Frequency Fixed 5V and 3.3V SMPS Outputs Low-Noise Ultrasonic Mode Autoretry Fault Protection S Charger High Switching Frequency (1.4MHz) Selectable 2-, 3-, and 4-Cell Battery Voltage Automatic Selection of System Power Source Internal Charge-Pump for Adapter n-Channel MOSFETs Drive Q0.4% Accurate.

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