ZXLD1350Q

Document number: DS37076 Rev. 2 - 2

1 of 21

www.diodes.com

September 2017

© Diodes Incorporated

ZXLD1350Q

AUTOMOTIVE COMPLIANT 350mA BUCK LED DRIVER

Description

The ZXLD1350Q is a hysteretic mode inductive step-down converter

with integrated switch and high side current sense.

It operates from an input supply from 7V to 30V driving single or

multiple series connected LEDs efficiently external adjustable output

current up to 350mA.

The output current can be adjusted by applying a DC voltage or a

PWM waveform. 100:1 adjustment of output current is possible using

PWM control. Applying a voltage of 0.2V or lower to the ADJ pin turns

the output off and switches the device into a low current standby

state.

Automotive Compliant supporting PPAPs.

Features



Simple Low Parts Count



Internal 30V NDMOS Switch



Internal PWM Filter



High Efficiency (Up to 95%)



Wide Input Voltage Range: 7V to 30V



40V Transient Capability



Up to 1MHz Switching Frequency



Typical 4% Output Current Accuracy



Green Molding (No Br, Sb) in TSOT25



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)



Automotive Compliant



Qualified to AEC-Q100 Standards for High Reliability



PPAP Capable (Note 4)

Pin Assignments

(Top View)

TSOT25

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2.

See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated‘s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-

free "Green‖ products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

4. Automotive products are AEC-Q100 qualified and are PPAP capable. Refer to https://www.diodes.com/quality/product-compliance-definitions/.

Typical Application Circuit