MAX71313LECB+

Overview

The MAX71313LECB+ is a high-efficiency, synchronous step-down DC-DC converter manufactured by Analog Devices Inc./Maxim Integrated. It operates with an input voltage range of 2.7V to 5.5V and delivers a programmable output voltage from 0.6V to 3.6V. The device supports up to 4A continuous output current with a switching frequency adjustable between 600kHz and 2.2MHz. Key electrical specifications include a quiescent current of 18µA in standby mode and a shutdown current of 1µA. It features integrated power MOSFETs and operates over an extended temperature range of -40°C to +125°C.

Feature Summary

• Integrated synchronous rectification for high efficiency across load ranges
• Programmable switching frequency allows optimization for size or performance
• Built-in protection mechanisms including overcurrent, thermal, and short-circuit protection

Applications

• Portable consumer electronics requiring efficient power management
• Industrial control systems with single-supply requirements
• Battery-powered devices needing low standby current consumption

Procurement Notes

Verify the specific suffix 'ECB' against the official datasheet to confirm package type and tape/reel specifications. Ensure the '+T' designation matches the required reel quantity if applicable. Confirm RoHS compliance status directly with the manufacturer documentation prior to ordering.

Selection Notes

Select this component when a compact solution is needed for 5V bus conversion to lower logic voltages. Consider the adjustable frequency feature to minimize external inductor size. Evaluate the 4A current capability against peak load demands to ensure adequate thermal headroom within the specified operating temperature range.

Part Context

This part belongs to the MAX713xx family of synchronous buck converters designed for space-constrained applications. It integrates power switches to reduce external component count compared to non-integrated alternatives. The series targets applications requiring high efficiency and fast transient response from a single-cell lithium-ion battery or 5V rail.

Replacement Considerations

Check for direct pin-compatible replacements within the MAX713xx series such as the MAX71312 or MAX71314, ensuring output current ratings and package dimensions match the design constraints.