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ZXSC100 - SINGLE CELL DC-DC CONVERTER

Datasheet Summary

Description

The ZXSC100 series is designed for DC-DC applications where step-up voltage conversion from very low input voltages is required.

These applications mainly operate from single nickel cadmium or nickel metal hydride battery cells.

Features

  • SuperSOT4™ switching transistor ZXT14N20DX:VCE(sat) 45mV max @ 1A load Efficiency maintained over a wide range of input voltages and load currents 82% efficiency @ VBATT=1V Startup under full load Minimum operating input voltage VBATT=0.926V Adjustable output voltage down to VBATT Quiescent current typically 150µA referred to input voltage MSOP8 Package SO8 Package Demonstration boards available U1 EM VDRIVE ISENSE FB GND BAS RE VCC efficiency over a wider range of load curr.

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Datasheet Details

Part number ZXSC100
Manufacturer Zetex Semiconductors
File Size 414.59 KB
Description SINGLE CELL DC-DC CONVERTER
Datasheet download datasheet ZXSC100 Datasheet
Additional preview pages of the ZXSC100 datasheet.

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Full PDF Text Transcription

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ZXSC100 SINGLE CELL DC-DC CONVERTER SOLUTION DESCRIPTION The ZXSC100 series is designed for DC-DC applications where step-up voltage conversion from very low input voltages is required. These applications mainly operate from single nickel cadmium or nickel metal hydride battery cells. The ZXSC100 devices are non-synchronous PFM, DC-DC controller ICs which drive an external transistor. Zetex SuperSOT4™ switching transistors, with saturation resistance as low as 13m Ω, are recommended as the external switching element. These bipolar transistors are the best switching devices available for this type of DC-DC conversion, enabling high efficiency conversion with input voltages down to below 1 volt.
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