MAX1587AETL

Overview

The MAX1587AETL is a high-efficiency, low-quiescent current power management IC (PMIC) designed for PDA and smartphone applications. It integrates three step-down converters, six regulated outputs, and three LDOs within a TQFN-40 package. The device supports an input voltage range of 2.6V to 5.5V, with output currents up to 1.2A for DC-DC converters and 0.5A for LDOs. Operating temperatures span from -40°C to +85°C, featuring a 1MHz switching frequency.

Feature Summary

• Integrates multiple power conversion stages including step-down converters and LDOs in a single compact package.
• Optimized for handheld devices with dynamic core control capabilities to enhance efficiency.
• Supports wide input voltage ranges suitable for battery-powered mobile systems.

Applications

• Personal Digital Assistants (PDAs)
• Smartphones
• Handheld mobile devices

Procurement Notes

Verify the specific suffix 'T' or '+' against official Analog Devices documentation to confirm tape-and-reel versus tube packaging and lead-free status. Confirm availability through authorized distributors as supply status may vary. Ensure the component matches the exact thermal pad requirements for the TQFN-48 or TQFN-40 footprint specified in the datasheet.

Selection Notes

Select this PMIC when designing power architectures for PDAs or smartphones requiring integrated buck and LDO solutions. Evaluate the total output current requirements against the 1.2A and 0.5A limits. Consider the 1MHz switching frequency for passive component size optimization compared to lower-frequency alternatives.

Part Context

The MAX1587 belongs to Maxim Integrated's family of specialized PMICs tailored for mobile communication devices. It consolidates power management functions typically distributed across multiple discrete components, reducing board space and simplifying design complexity for portable electronics manufacturers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Consult Analog Devices official resources for cross-reference information.