MAX1632CAI

Overview

The MAX1632CAI is a multi-output, low-noise power-supply controller designed for notebook computers. It integrates two synchronous step-down (buck) controllers and one linear regulator (LDO) in a single package. The device operates within a supply voltage range of 4.2V to 30V and supports switching frequencies between 200kHz and 300kHz. It is housed in a 28-SSOP package with a width of 5.30mm. The component is rated for an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates dual buck controllers and a linear regulator for comprehensive power management
• Optimized for low-noise performance in portable computing applications
• Supports synchronized operation for efficient multi-rail power sequencing

Applications

• Notebook computer power systems
• Multi-rail DC-DC conversion architectures
• Portable electronic device power management

Procurement Notes

Verify the specific suffix 'CAI' against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Ensure that the 28-SSOP package dimensions align with the target PCB footprint. Confirm that the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the ordering information with Analog Devices documentation to validate current availability status.

Selection Notes

Select this component when designing power systems for notebooks requiring integrated buck and LDO regulation. Verify that the input voltage range covers the system's battery or adapter specifications. Ensure the switching frequency selection allows for appropriate passive component sizing. Check that the thermal performance of the SSOP package is sufficient for the expected load conditions without additional heatsinking.

Part Context

The MAX1632CAI belongs to the MAX1630 series of multi-output power-supply controllers. This family is specifically engineered for portable computers, combining multiple regulation topologies to reduce board space. The CAI variant denotes a commercial temperature grade and specific packaging configuration within the broader MAX1632 product line.

Replacement Considerations

Public confirmed substitutes include MAX1632EAI and MAX1630CAI. Verify pin compatibility and electrical specifications before substitution.