Introduction

 The document describes a high efficiency LED driver designed to drive an LED driver at a current of 320 mA from an input voltage range of 3.6 VDC to 20 VDC, output support 2~8 series 1W LED.

 The XL6001 also provides a sophisticated range of protection features including output LED open faults and soft-start function. Accurate hysteretic thermal shutdown ensures safe average PCB temperatures under all conditions. Design with very low parts count.

 This document contains the converter specification, schematic, PCB diagram, bill of materials. 

Note：

 1. Keep feedback wiring away from inductor and schottky.

 2. VIN, SW, LED+, LED- lines must be short and ground plane construction for best results.

 3. C3,R1,R2 and R3 are used for the designing with PWM dimming. If not with PWM dimming, R1 replaced with 0 ohm, C3,R2,R3 open.

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