XL3003 datasheet(2/14 Pages) ETC2

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XLSEMI

Datasheet

4A 220KHz 36V Buck LED Constant Current Driver

XL3003

Rev 1.2

www.xlsemi.com

Pin Configurations

Figure2. Pin Configuration of XL3003 (Top View)

Table 1 Pin Description

Pin Number

Pin Name

Description

GND

Ground Pin. Care must be taken in layout. This pin should be

placed outside of the Schottky Diode to output capacitor

ground path to prevent switching current spikes from inducing

voltage noise into XL3003.

Output constant current sense Pin (CS). The CS reference

voltage is 0.21V.

Power Switch Output Pin (SW). SW is the switch node that

supplies power to the output.

Internal Voltage Regulator Bypass Capacity. In typical system

application, The VC pin connect a 1uf capacity to VIN.

VIN

Supply Voltage Input Pin. XL3003 operates from a 8V to 36V

DC voltage. Bypass Vin to GND with a suitably large

capacitor to eliminate noise on the input.

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