MAX16501GGB+T

Overview

The MAX16501GGB+T is a high-efficiency, synchronous step-down DC-DC converter manufactured by Analog Devices Inc./Maxim Integrated. It integrates two N-channel power switches and operates from an input voltage range of 2.7V to 5.5V. The device delivers a programmable output voltage with a maximum load current capability of 3A. Key electrical parameters include a switching frequency adjustable from 400kHz to 2.2MHz, enabling the use of small external inductors and capacitors. It features a low quiescent current of 180µA and supports Power Good indication. The component is housed in a thermally enhanced 10-pin TDFN package.

Feature Summary

• Integrates high-side and low-side N-channel power MOSFETs for efficient synchronous rectification
• Supports wide input voltage range suitable for single-cell lithium-ion battery applications
• Includes internal soft-start circuitry to limit inrush current during startup
• Provides comprehensive protection against over-current, thermal overload, and under-voltage lockout

Applications

• Portable consumer electronics powered by single-cell lithium-ion batteries
• Wireless communication modules and handheld devices
• Embedded systems requiring stable 1.2V or 1.8V logic supplies
• Industrial control boards with 3.3V or 5V distribution networks

Procurement Notes

Verify the suffix 'GGB' corresponds to the specific tape-and-reel packaging configuration required for automated assembly processes. Confirm that the '+T' designation indicates lead-free RoHS compliance as per manufacturer standards. Ensure the ordering part number matches the exact pinout and thermal pad requirements of your PCB layout to avoid compatibility issues with existing footprints.

Selection Notes

Select this component when designing space-constrained systems requiring high efficiency from a single-cell lithium source. It is appropriate for applications needing up to 3A continuous current with minimal external component count. Consider the adjustable switching frequency to optimize the trade-off between electromagnetic interference (EMI) filtering and passive component size based on the specific noise environment of the target application.

Part Context

This part belongs to the MAX1650x family of synchronous buck converters, designed for low-power, high-density applications. It serves as a direct replacement for older linear regulators in battery-operated devices where efficiency and thermal management are critical. The GGB package variant offers improved thermal dissipation compared to standard plastic packages, supporting higher current densities in compact form factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference availability through official distributor channels if obsolescence is a concern.