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LTC3426 - 1.2MHz Step-Up DC/DC Converter

Description

The LTC®3426 step-up switching regulator generates an output voltage of up to 5.5V from an input voltage as low as 1.6V.

Ideal for applications where space is limited, it switches at 1.2MHz, allowing the use of tiny, low cost and low profile external components.

Features

  • n Internal 2A MOSFET Switch n 1.2MHz Switching Frequency n Integrated Soft-Start n Low 1.6V VIN Operation n Low RDS(ON) Switch: 100mΩ at 5V Output n Delivers 5V at 800mA from a 3.3V Input n Delivers 3.3V at 800mA from a 2.5V Input n Uses Small, Low Profile External Components n Low Profile (1mm) SOT-23 (ThinSOT™) Package.

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Full PDF Text Transcription

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FEATURES n Internal 2A MOSFET Switch n 1.2MHz Switching Frequency n Integrated Soft-Start n Low 1.6V VIN Operation n Low RDS(ON) Switch: 100mΩ at 5V Output n Delivers 5V at 800mA from a 3.3V Input n Delivers 3.3V at 800mA from a 2.5V Input n Uses Small, Low Profile External Components n Low Profile (1mm) SOT-23 (ThinSOT™) Package APPLICATIONS n White LED Driver Supply n Local 3.3V or 5V Supply n Battery Back-Up TYPICAL APPLICATION 3.3V to 5V Boost Converter VIN 2.2µH 3.3V 10µF SW VIN VOUT LTC3426 OFF ON SHDN FB GND VOUT 5V 800mA 22µF 3426 TA01 LTC3426 1.2MHz Step-Up DC/DC Converter in SOT-23 DESCRIPTION The LTC®3426 step-up switching regulator generates an output voltage of up to 5.5V from an input voltage as low as 1.6V.
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