MAX1904EAI-TG074

Overview

The MAX1904EAI-TG074 is a dual-output, fixed-frequency PWM power-supply controller designed for notebook and subnotebook systems. It operates with an input voltage range of 4.2V to 30V and provides adjustable output voltages from 2.5V to 5.5V. The device utilizes a buck topology and functions at a switching frequency of 500kHz. It is housed in a 28-SSOP package and supports surface-mount assembly. The component is rated for operation within a temperature range of -40°C to 85°C.

Feature Summary

• Dual-output architecture supporting independent power rails
• Fixed-frequency PWM control for stable noise performance
• Wide input voltage compatibility for battery-powered applications

Applications

• Notebook computer power sequencing
• Subnotebook system power management
• Battery-powered portable electronics

Procurement Notes

Verify the specific suffix TG074 against official Analog Devices documentation to confirm tape-and-reel packaging specifications. Ensure the E-grade temperature rating matches the intended environmental operating conditions. Cross-reference the 28-SSOP package dimensions with mechanical design constraints before finalizing procurement orders.

Selection Notes

Select this controller when designing multi-rail power systems for mobile computing devices requiring low-noise regulation. The dual-output capability simplifies board layout by reducing component count compared to single-channel solutions. Consider the 500kHz switching frequency trade-offs regarding efficiency and electromagnetic interference during the initial schematic phase.

Part Context

This component belongs to the Maxim Integrated portfolio of power management integrated circuits. It is specifically engineered for the demanding requirements of portable computing hardware. The device integrates essential control logic to manage multiple DC-DC converters efficiently within compact form factors typical of modern laptop architectures.

Replacement Considerations

Consult official Analog Devices substitution guides for verified compatible alternatives. Do not assume pin-to-pin compatibility with other series without explicit manufacturer confirmation. Verify that any substitute maintains the required dual-output functionality and thermal performance characteristics.