MAX8563EEE+

Overview

The MAX8563EEE+ is a triple linear n-FET controller from Analog Devices/Maxim Integrated, housed in a 16-pin QSOP package. It operates within a supply voltage range of 4.5V to 13.2V and provides three adjustable outputs ranging from 0.5V to 3.3V at VDD=12V, or 0.5V to 1.8V at VDD=5V. The device features a 0.5V reference with ±1% accuracy and draws 930µA quiescent current. It includes independent enable controls, power-good signals, and protection against soft short-circuits.

Feature Summary

• Triple output controllers for flexible point-of-load voltage conversion
• Adjustable output voltages down to 0.5V with ±1% feedback regulation
• Independent enable control and Power-Good (POK) signal for sequencing
• Protection against soft short-circuit conditions via undervoltage comparator

Applications

• Motherboards
• Desknotes and notebooks
• Dual/triple power supplies
• Low-voltage DSP, microprocessor, and microcontroller power supplies

Procurement Notes

Verify the component status as discontinued or limited supply through official manufacturer channels. Confirm RoHS compliance details and ensure the specific QSOP-16 package matches design requirements. Cross-reference ordering suffixes carefully to avoid functional mismatches.

Selection Notes

Select this part for applications requiring ultra-low dropout voltage regulation using external n-channel MOSFETs. Ensure the input voltage aligns with the 4.5V to 13.2V operating range. Verify that the required output voltage falls within the 0.5V to 3.3V adjustability limits supported by the chosen VDD rail.

Part Context

This component belongs to the MAX8563/MAX8564/MAX8564A family of ultra-low-output dual and triple LDO controllers. While the MAX8564 variants offer two outputs in a µMAX package, the MAX8563 specifically provides three controller outputs in a 16-pin QSOP format, designed for high-density power management solutions.

Replacement Considerations

Check for MAX8564EUB+ or MAX8564AEUB+ if only dual outputs are needed. Verify pinout compatibility before substituting with other Maxim integrated circuit families.