MAX1631AEAI+T

DC DC Switching Controllers Overview

The MAX1631AEAI+T is a multi-output, low-noise power-supply controller designed for notebook computers. It utilizes a buck topology to provide dual adjustable outputs ranging from 2.5V to 5.5V. The device operates with a switching frequency of 300 kHz and supports a maximum duty cycle of 99%. It accepts an input voltage range of +4.2V to +30V and delivers up to 1A output current. The component functions within a temperature range of -40°C to +85°C and is housed in a 28-SSOP surface-mount package.

DC DC Switching Controllers Feature Summary

• Integrates a precision 2.5V reference output for accurate regulation
• Supports selectable fixed or adjustable secondary feedback configurations
• Includes a dedicated 5V/50mA linear regulator output
• Features Dual Mode capability for flexible output selection

DC DC Switching Controllers Applications

• Multi-rail power systems for notebook computers
• Low-noise DC-DC conversion applications
• Systems requiring precise voltage regulation with wide input ranges

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm tape-and-reel packaging availability versus tube packaging variants. Ensure compatibility with existing board layouts by confirming the 28-SSOP pinout matches the design requirements. Cross-reference the RoHS compliance status and environmental declarations provided in the latest datasheet revision to meet regulatory standards for the target market.

DC DC Switching Controllers Selection Notes

Select this controller when designing power supplies for portable computing devices requiring multiple regulated rails from a single input source. The integrated linear regulator simplifies bias supply generation, reducing external component count. Consider the 300 kHz switching frequency for balancing efficiency and passive component size. Verify that the input voltage range aligns with the system's battery or adapter specifications to ensure stable operation across all load conditions.

DC DC Switching Controllers Part Context

This component belongs to the MAX1631A series of multi-output power-supply controllers. It is part of Analog Devices' portfolio of PMIC solutions optimized for mobile and notebook applications. The device shares architectural similarities with other Maxim Integrated switching controllers but is specifically tuned for low-noise performance and high efficiency in compact form factors typical of consumer electronics.

DC DC Switching Controllers Replacement Considerations

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