ZXLD1356ET5TA

Overview

The ZXLD1356ET5TA is a single-output DC-DC step-down (buck) converter IC designed for LED lighting applications. It integrates an internal power switch capable of delivering up to 550mA output current. The device operates from a supply voltage range of 6V to 60V and supports PWM dimming control. It utilizes a fixed switching frequency of 1MHz and features a TSOT-23-5 surface-mount package. The component is rated for an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-voltage internal power switch for simplified circuit design
• Supports continuous conduction mode for efficient LED driving
• Enables precise brightness control through PWM dimming interface

Applications

• General LED illumination systems
• Automotive exterior lighting modules
• Portable battery-powered LED devices

Procurement Notes

Verify the specific suffix ET5TA against official Diodes Incorporated documentation to confirm the TSOT-23-5 packaging and reel specifications. Ensure compatibility with your PCB footprint and thermal management requirements before finalizing orders. Cross-reference the datasheet revision date to guarantee access to the most current electrical characteristics and application guidelines.

Selection Notes

Select this component when a compact solution is required for driving LEDs from higher voltage sources without external pass transistors. The integrated switch reduces bill of materials count compared to discrete solutions. Consider the 60V input limit and 550mA current capability to ensure adequate headroom for the target LED string configuration and load conditions.

Part Context

This part belongs to the ZXLD1356 series of LED drivers from Diodes Incorporated. The family includes variants with different current ratings and input voltage ranges, such as the ZXLD1352 and ZXLD1366. These components share similar buck topology architectures but differ in maximum output current and breakdown voltage specifications.

Replacement Considerations

Direct substitutes include ZXLD1356DACTC and ZXLD1356ET5TA from the same manufacturer. Verify pinout compatibility and electrical parameters before swapping with other buck converters.