MAX1586AETM

Overview

The MAX1586AETM is a high-efficiency, low-quiescent current Power Management IC (PMIC) designed for portable applications such as PDAs and smartphones. It integrates seven output channels: six step-down DC-DC converters and one Low-Dropout (LDO) regulator. The device operates with an input voltage range of 2.6 V to 5.5 V. Each switching regulator provides an output current capability of 500 mA. The internal switchers operate at a fixed frequency of 1 MHz. The LDO output is adjustable. The component is housed in a 48-pin TQFN package with an exposed pad, measuring 7 mm by 7 mm.

Feature Summary

• Integrates multiple power rails within a single compact package to reduce board space
• Features dynamic core technology to optimize efficiency across varying load conditions
• Includes a dedicated low-noise LDO regulator alongside multiple switching converters
• Supports flexible output configurations through adjustable voltage settings

Applications

• Personal Digital Assistants (PDAs)
• Smartphones
• Portable computing devices requiring multi-rail power management

Procurement Notes

Verify the specific suffix (+ or +T) to confirm lead-free status and tape-and-reel packaging configuration. Ensure the ordering part number matches the required package variant and temperature rating. Confirm availability with authorized distributors as supply levels may vary. Cross-reference the manufacturer's latest datasheet for any updates to electrical characteristics or mechanical dimensions before finalizing procurement.

Selection Notes

Select this PMIC when a system requires multiple regulated voltages from a single battery source. It is suitable for designs needing both high-current switching outputs and a clean analog supply rail. Consider the 1 MHz switching frequency for smaller passive component sizes. Verify that the total output current requirements of all rails do not exceed the individual channel limits. Ensure the input voltage range aligns with the battery chemistry used in the target application.

Part Context

This component belongs to the MAX1586 series of power management ICs. It is manufactured by Analog Devices Inc., formerly Maxim Integrated. The series is characterized by its integration of multiple regulators into a single chip, targeting space-constrained mobile electronics. The ETM suffix indicates the specific TQFN package and thermal pad configuration.

Replacement Considerations

Check for direct pin-compatible alternatives within the same product family. Verify if other PMICs offer similar channel counts and current capabilities. Ensure replacement parts support the same input voltage range and switching frequency. Confirm compatibility with existing PCB footprints and thermal design requirements.