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XCL301 - micro DC/DC Converters

Description

The XCL301 series is a inverting micro DC/DC converter which integrates a P-channel FET, an inductor and a control IC in one tiny package (2.5mm×2.0mm, h=1.00mm max).

Features

  • Voltage Range : 2.7V ~ 5.5V Output Voltage : -3.3V Output Voltage accuracy ±2.0% Output Current : -50mA@VOUT=-3.3V, VIN=3.3V (TYP) Internal Driver : 1.3Ω (Pch Driver Tr) Quiescent Current : 40μA (TYP. ) Control Methods : PFM / Fixed off time PWM Auto Transient Response : -50mV (VIN=3.3V,VOUT=-3.3V,IOUT=1mA→50mA) PFM switch Current : 550mA Function : Current Limit Soft-Start CL High Speed Discharge UVLO CL High Speed Discharge Operating Ambient Temperature : -40 ~ +85℃ Pa.

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Full PDF Text Transcription

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XCL301Series ETR28015-003 Inductor Built-in Inverting “micro DC/DC” Converters ☆Green Operation Compatible ■GENERAL DESCRIPTION The XCL301 series is a inverting micro DC/DC converter which integrates a P-channel FET, an inductor and a control IC in one tiny package (2.5mm×2.0mm, h=1.00mm max). A wide operating voltage range of 2.7V to 5.5V enables support for applications that require an internally -3.3V fixed output voltage. The XCL301 series uses automatic PFM/fixed off time PWM. In automatic PFM/fixed off time PWM control, the IC operates by PFM control when the load is light to achieve high efficiency over the full load range from light to heavy. The device provides a stable inverting power supply to be configured using only a SBD and two capacitors connected externally.
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