MAX786CAI

Overview

The MAX786CAI+T is a dual-output power supply controller designed for notebook computer applications. It operates with an input voltage range of +4.2V to +30V and provides two adjustable outputs ranging from 2.5V to 5.5V, or selectable fixed 3.3V and 5V options. The device utilizes current-mode control with pulse width modulation to achieve up to 96% efficiency. It integrates a 12V linear regulator, a 5V/50mA linear regulator output, and a precision 2.5V reference. The component is housed in a 28-pin SSOP package and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Dual-Output Power Supply Controller architecture supporting simultaneous regulation
• Integrated high-efficiency switching control with selectable fixed or adjustable output modes
• Onboard auxiliary regulators including a 12V LDO and a 5V/50mA LDO for system biasing
• Precision internal 2.5V reference for accurate feedback loop stability

Applications

• Notebook computer main power supply systems
• Multi-rail DC-DC conversion architectures
• Portable electronics requiring efficient dual-voltage generation

Procurement Notes

Verify the specific suffix (+T) indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Ensure the operating temperature range meets your environmental requirements. Cross-reference the exact part number with Analog Devices to confirm availability and lifecycle status before finalizing procurement plans.

Selection Notes

Select this controller for designs requiring dual isolated or non-isolated outputs from a single input source. It is suitable for applications needing integrated auxiliary rails to reduce external component count. Consider the thermal performance within the SSOP-28 package for your PCB layout. Verify that the input voltage range aligns with your battery or adapter specifications.

Part Context

The MAX786 series belongs to Analog Devices' portfolio of multi-output power management solutions optimized for portable computing. These controllers address the complexity of generating multiple voltage rails efficiently in space-constrained environments. The CAI variant specifically denotes the commercial temperature grade and SSOP package configuration within this product line.

Replacement Considerations

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