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ZXLD1322 - Buck/boost mode DC-DC converter

Description

The ZXLD1322 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in series up to a total of 700mA output current.

Applications cover input voltages ranging from 2.5V to 15V.

Features

  • The feedback control circuitry inside the ZXLD1322 provides excellent load and current regulation, resulting in very stable LED current over the useful life of the battery and over the full operating temperature range. The LED current can be adjusted from 100% down to 10% of the set value by applying a dc voltage to the ADJ pin and down to 1% by applying a PWM signal. An on-chip LED protection circuit also allows output current to be reduced linearly above a predetermined threshold temperature.

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www.DataSheet.co.kr ZXLD1322 Buck/boost mode DC-DC converter for LED driving with 700mA output and current control Description The ZXLD1322 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in series up to a total of 700mA output current. Applications cover input voltages ranging from 2.5V to 15V. Depending upon supply voltage and external components, this can provide up to 12W of output power. The device employs a variable 'on' and 'off' time control scheme with adjustable peak switch current limiting and operates in Buck/ Boost mode, offering higher power efficiency and lower system cost than conventional PFM buck/boost circuitry.
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