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MAX1904 - Low-Noise Power-Supply Controllers

Download the MAX1904 datasheet PDF. This datasheet also covers the MAX variant, as both devices belong to the same low-noise power-supply controllers family and are provided as variant models within a single manufacturer datasheet.

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.

Key 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX-1901.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (Analog Devices)

Part Number Description
MAX190 Low-Power / 12-Bit Sampling ADCs
MAX1901 Low-Noise Power-Supply Controllers
MAX1902 Low-Noise Power-Supply Controllers
MAX191 12-Bit Sampling ADC
MAX1910 1.5x/2x High-Efficiency White LED Charge Pumps

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.