MAX1902EAI

Overview

The MAX1902EAI is a dual switching controller designed for battery-powered systems. It operates at a frequency of 500 kHz and utilizes peak current mode control with pulse width modulation. The device features a logic supply voltage range of 2.7V to 5.25V and supports an input voltage limit suitable for step-down applications. It is housed in a 28-SSOP package and functions as a buck-topology power-supply controller.

Feature Summary

• Dual output capability for generating multiple logic supply voltages
• Peak current mode control technique for stable regulation
• Low-noise design optimized for sensitive battery-powered electronics

Applications

• Notebook computer power management
• Battery-powered portable devices
• Multi-output logic supply generation

Procurement Notes

Verify the specific suffix (e.g., +T, +G05) against the datasheet to confirm tape-and-reel or tube packaging requirements. Confirm RoHS compliance status for the exact orderable part number. Check for active lifecycle status as older revisions may be discontinued. Ensure the supplier provides valid traceability documentation for critical embedded applications.

Selection Notes

Select this component when designing systems requiring two independent regulated outputs from a single controller IC. It is suitable for applications needing low noise performance to protect sensitive digital logic. Consider the 28-SSOP package constraints for PCB layout. Verify that the required input voltage range aligns with the system's battery profile.

Part Context

This part belongs to the MAX1901/MAX1902/MAX1904 family of buck-topology controllers. These devices are engineered specifically for generating logic supply voltages in portable equipment. The series emphasizes low noise and efficiency for battery-operated environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.