MAX1633EAI

Overview

The MAX1633EAI is a triple-output power management IC designed for notebook computers. It integrates two step-down DC-DC converters and one low-dropout linear regulator within a single package. The device operates from an input voltage range of 4.2V to 30V. It provides three distinct output rails, including dedicated outputs for system logic and peripheral supplies. The component utilizes a 28-pin SSOP surface-mount package. It supports switching frequencies between 200kHz and 300kHz. The unit functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates dual buck converters and a single LDO for multi-rail generation
• Includes internal sequencing control for orderly power-up and power-down
• Features enable and reset control mechanisms for system management

Applications

• Notebook computer mainboard power distribution
• Multi-voltage rail generation for embedded systems
• Power supply units requiring integrated buck and linear regulation

Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm exact electrical tolerances and packaging variations. Confirm current availability status as this component may be subject to discontinuation or limited supply constraints. Ensure compatibility with existing PCB footprints and thermal requirements before procurement.

Selection Notes

Select this component when a compact solution for generating multiple voltage rails is required in portable electronics. It is suitable for designs needing both efficient switching regulation and low-noise linear regulation in close proximity. Verify that the input voltage range aligns with the system battery or adapter specifications.

Part Context

This part belongs to the MAX163x family of power management ICs developed by Maxim Integrated, now part of Analog Devices. These devices are specifically engineered for mobile computing applications where space efficiency and power integrity are critical. The family typically combines switching regulators with linear regulators to handle diverse load requirements.

Replacement Considerations

Check for MAX1633EAI+ as a potential RoHS-compliant equivalent. Verify pin-to-pin compatibility and electrical parameter alignment with any alternative components from the same manufacturer series.