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MAX1541 - Dual Step-Down Controllers

Download the MAX1541 datasheet PDF. This datasheet also covers the MAX1540A variant, as both devices belong to the same dual step-down controllers family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX1540A/MAX1541 dual pulse-width modulation (PWM) controllers provide the high efficiency, excellent transient response, and high DC-output accuracy necessary for stepping down high-voltage batteries to generate low-voltage chipset and RAM power supplies in notebook computers.

Key Features

  • Inductor-Saturation Protection.
  • Accurate Differential Current-Sense Inputs.
  • Dual Ultra-High-Efficiency Quick-PWMs with 100ns Load-Step Response.
  • MAX1540A 1.8V/1.2V Fixed or 0.7V to 5.5V Adjustable Output (OUT1) 2.5V/1.5V Fixed or 0.7V to 5.5V Adjustable Output (OUT2) Fixed 5V, 100mA Linear Regulator.
  • MAX1541 External Reference Input (REFIN1) Dynamically Selectable Output Voltage.
  • 0.7V to 5.5V (OUT1) 2.5V/1.8V Fixed or 0.7V to 5.5V Adjustable O.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1540A_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1540 Dual Step-Down Controllers
MAX1540A Dual Step-Down Controllers
MAX1545 Quick-PWM Controllers
MAX1549 Fixed-Frequency Step-Down Controller
MAX15000 Current-Mode PWM Controllers

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
19-2861; Rev 3; 2/07 KIT ATION EVALU E L B AVAILA www.DataSheet4U.com Dual Step-Down Controllers with Saturation Protection, Dynamic Output, and Linear Regulator General Description The MAX1540A/MAX1541 dual pulse-width modulation (PWM) controllers provide the high efficiency, excellent transient response, and high DC-output accuracy necessary for stepping down high-voltage batteries to generate low-voltage chipset and RAM power supplies in notebook computers. The Maxim proprietary Quick-PWM™ controllers are free running, constant on-time with input feed forward. This configuration provides ultra-fast transient response, wide input-output (I/O) differential range, low supply current, and tight load-regulation characteristics.