Zetex is a leading provider of high performance, analog semiconductor products for signal processing and power management. The company designs and manufactures a broad range of standard and application focused linear integrated circuits and discrete semiconductor products using a wide variety of wafer processing technologies.


• 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


• High power LED flashlights
• LED back-up lighting
• General LED lighting
• Emergency lighting

The ZXLD1321 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in series up to a total of 1A output current. Applications cover commercial environments with input voltages ranging from 1.2V to 12V. The device includes the DC-DC converter, a high-side current monitor and an NPN switching transistor to provide an integrated solution offering small PCB size, competitive cost/performance, high power efficiency of DC-DC conversion and maximum LED brightness/reliability. External resistors set nominal average LED current and coil peak current independently. The device can be shut down by applying a continuous low level dc voltage to the ADJ pin.

The ZXLD1321DCATC is available in a 1k reel.

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Mfr Part#: ZXLD1321DCATC
Mounting Method: Surface Mount
Package Style: DFN-14
Available In: REEL

ZXLD1321 Series 1 A 12 V 600 kHz Boost Mode DC-DC Converter for LED - DFN-14


Technical Specifications:

Supply Voltage: Output Current per Channel: Switching Frequency-Max:
2 to 12 V 1 A 600 kHz
See the Download Center for a complete library of supporting documentation.


$1.41 USD (each)
3000+ $1.41

Other quantities & packages (Reels) may also be available


Qty in Stock : 0
Reserve Stock:
Factory Stock: 3,000
Factory Lead-Time: 5-10 Days
Min. Order Qty: 3,000
Multiple of: 3,000
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