This document is the ZXSC300 LED driver chip product manual released by Infineon Company, which introduces the characteristics and applications of the chip, application circuits and ordering information
The ZXSC300 is a PFM controller IC designed for single‑cell LED driving applications. It works with an external switching transistor to provide a boost converter that can operate from input voltages as low as 0.8 V, delivering constant‑current pulses for one or multiple LEDs.
The document includes absolute maximum ratings, electrical characteristics, pin descriptions, reference designs, and recommended component selections such as the FMMT617 transistor and ZHCS1000 Schottky diode. Package information, supplier contacts, and mechanical dimensions are also provided.
| Efficiency | 94 % |
|---|---|
| Minimum operating input voltage | 0.8 V |
| Supply voltage range | -0.3 V to 10 V |
| Quiescent current | 0.2 mA |
| Package | SOT23‑5 |
The ZXSC300 can operate with a minimum input voltage of 0.8 V.
The device achieves an efficiency of 94 %.
The ZXSC300 is offered in an SOT23‑5 surface‑mount package.
The quiescent current is specified as 0.2 mA.