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MAX1901 - Low-Noise Power-Supply Controllers

This page provides the datasheet information for the MAX1901, a member of the MAX Low-Noise Power-Supply Controllers family.

Datasheet Summary

Description

The MAX1901/MAX1902/MAX1904 are buck-topology, step-down, switch-mode, power-supply controllers that generate logic-supply voltages in battery-powered systems.

Features

  • o o o o o o o o o o o o o o o o Features 97% Efficiency 4.2V to 30V Input Range 2.5V to 5.5V Dual Adjustable Outputs Selectable 3.3V and 5V Fixed or Adjustable Outputs (Dual Mode™) 12V Linear Regulator Adjustable Secondary Feedback (MAX1901/MAX1904) 5V/50mA Linear Regulator Output Precision 2.5V Reference Output Programmable Power-Up Sequencing Power-Good (RESET) Output Output Overvoltage Protection (MAX1901/MAX1902) Output Undervoltage Shutdown (MAX1901/MAX1902) 333kHz/500kHz Low-Noise, Fixed.

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Datasheet preview – MAX1901

Datasheet Details

Part number MAX1901
Manufacturer Maxim
File Size 649.91 KB
Description Low-Noise Power-Supply Controllers
Datasheet download datasheet MAX1901 Datasheet
Additional preview pages of the MAX1901 datasheet.

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Full PDF Text Transcription

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19-2224; Rev 3; 12/03 500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers General Description The MAX1901/MAX1902/MAX1904 are buck-topology, step-down, switch-mode, power-supply controllers that generate logic-supply voltages in battery-powered systems. These high-performance, dual/triple-output devices include on-board power-up sequencing, power-good signaling with delay, digital soft-start, secondary winding control, low dropout circuitry, internal frequency-compensation networks, and automatic bootstrapping. Up to 97% efficiency is achieved through synchronous rectification and Maxim’s proprietary Idle Mode™ control scheme. Efficiency is greater than 80% over a 1000:1 load-current range, which extends battery life in system suspend or standby mode.
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