MAX1904EAI

Overview

The MAX1904EAI is a multi-output power-supply controller designed for notebook computers. It operates at a switching frequency of 500kHz and supports two outputs with an input voltage range of 4.2V to 30V. The device features over-current protection, thermal shutdown, built-in soft-start, and reset functions. It provides power supply timing control and operating status indication. The component is available in surface-mount packaging and operates within a temperature range of -40°C to 85°C.

Feature Summary

• Integrated multi-output power management with two output channels
• Built-in safety protections including over-current and thermal shutdown
• Controlled startup sequence via built-in soft-start and timing control
• Wide input voltage compatibility for flexible system integration

Applications

• Notebook computer power systems
• Multi-rail power management applications
• General-purpose controller circuits requiring multiple regulated outputs

Procurement Notes

Verify the exact suffix and tape/reel specifications against the manufacturer's current datasheet before ordering. Confirm that the package type matches your PCB footprint requirements. Check for any recent lifecycle changes or obsolescence notices from Analog Devices. Ensure compliance with RoHS and REACH regulations as specified in the official documentation. Validate pinout configurations to prevent installation errors during assembly.

Selection Notes

Select this component when designing power architectures for portable computing devices requiring synchronized multi-rail generation. Consider its 500kHz operation for balancing efficiency and component size. Evaluate the wide input voltage range against your system's battery or adapter characteristics. Assess the need for integrated protection features to simplify external circuitry. Verify thermal performance requirements against the expected load conditions.

Part Context

This part belongs to the Maxim Integrated family of power management ICs specifically engineered for mobile computing platforms. It addresses the complexity of generating multiple voltage rails from a single source in space-constrained environments. The design integrates control logic and power stages to reduce board area. It represents a solution for managing power sequencing and stability in notebook and similar portable electronic systems.

Replacement Considerations

Consult Analog Devices official substitution guides for verified alternatives. Cross-reference pinouts and electrical parameters carefully. No public substitute part numbers are confirmed in the provided data.