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MAX1541 Datasheet Dual Step-Down Controllers

Manufacturer: Maxim Integrated (now Analog Devices)

Download the MAX1541 datasheet PDF. This datasheet also includes the MAX1540A variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

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

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.

Overview

19-2861; Rev 3; 2/07 KIT ATION EVALU E L B AVAILA www.DataSheet4U.

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.

More Datasheets from 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
MAX15001 Current-Mode PWM Controllers
MAX15003 Triple-Output Buck Controller
MAX15004 4.5V to 40V Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers
MAX15005 4.5V to 40V Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers
MAX15006 ultra-low quiescent-current linear regulators