ZXLD1321 - Boost mode DC-DC converter for led driving with 1A output and current control

Product description The ZXLD1321 is an inductive Boost Mode DC-DC  converter, with an internal switch, designed  for driving single or up to 5 LEDs in series up  to a total of 1A output current.  Applications cover both commercial and  automotive environments with input voltages  ranging from 1.2V to 12V.

Datasheet Issue 1 - Jan 2008 Subscribe to our RSS datasheet feed Click to read the latest disclaimer information for Zetex parts.

Features 1.2V to 12V Input voltage range Up to 1A output current Typical efficiency# >85% Bootstrap operation enables input voltage down to 1V User-defined thermal control of LED output current using external thermistor High output current stability over input voltage and temperature 12µA typical standby current LED current adjustable from 100% down to 2% Adjustable soft-start Drives up to 5 white LEDs in series

Applications Low voltage halogen lamp replacement with LEDs High Power LED flashlights LED back-up lighting General LED lighting Automotive Lighting

Ordering information

Order reference	Tolerance (%)	Package	Part mark	Status	Reel size	Quantity per reel	Tape width	Price ($) 1k†	Purchase
ZXLD1321DCATC	5%	TDFN1443	1321	Active	13"	3000	12mm	1.330

† Indicative/budgetary information

This product is Pb-free/ROHS - compliant (EC directive 2002/95/EC).
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Design tools

Application notes AN64 - Common anode topology with Zetex hysteretic converters Spice model

Package information

TDFN1443 Package information (182 Kb) containing Package dimensions Pad layout Reflow Soldering Profile (88 Kb) Wave Soldering Profile (87 Kb) Moisture Sensitivity Level for ZXLD1321 = 1

Chemical content reporting

Press release

Driver family meets demands of next generation LEDs