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RT9261A - VFM Step-up DC/DC Converter

Download the RT9261A datasheet PDF. This datasheet also covers the RT9261 variant, as both devices belong to the same vfm step-up dc/dc converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The RT9261 Series are VFM Step-up DC/DC ICs with ultra low supply current by CMOS process and suitable for use with battery-powered instruments.

Key Features

  • Minimal Number of External Components ( Only an Inductor, a Diode, and a Capacitor) Ultra Low Input Current ( 5µA at Switch Off) ± 2% High Output Voltage Accuracy Low Ripple and Low Noise Low Start-up Voltage, 0.85V at 1mA 75% Efficiency with Low Cost Inductor +50 ppm/ °C Low Temperature-Drift SOT-89 and SOT-25 Small Packages.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT9261-RICHTEK.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT9261A
Manufacturer Richtek
File Size 274.31 KB
Description VFM Step-up DC/DC Converter
Datasheet download datasheet RT9261A Datasheet

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Other Datasheets by Richtek

Part Number Description
RT9261 VFM Step-up DC/DC Converter
RT9261B VFM Step-up DC/DC Converter
RT9262 Step-up DC/DC Converter
RT9262A Step-up DC/DC Converter
RT9263 HIGH EFFICIENCY LOW SUPPLY CURRENT STEP UP DC/DC CONVERTER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Preliminary RT9261/A VFM Step-up DC/DC Converter General Description The RT9261 Series are VFM Step-up DC/DC ICs with ultra low supply current by CMOS process and suitable for use with battery-powered instruments. The RT9261 IC consists of an oscillator, a VFM control circuit, a driver transistor (LX switch), a reference voltage unit, an error amplifier, resistors for voltage detection, and a LX switch protection circuit. A low ripple and high efficiency step-up DC/DC converter can be constructed of this RT9261 IC with only three external components. The RT9261A IC provides with a drive pin (EXT) for an external transistor, so that a power transistor can be externally applied. Therefore, the RT9261A IC is recommended for applications where large currents are required.