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RT9275 - Step-up DC/DC Converter

General Description

The RT9275 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load

Key Features

  • z 1V Low Start-up Input Voltage at 1mA Load z Zero Shutdown Mode Supply Current z 90% Efficiency z 400kHz Switching Frequency z Providing Flexibility for Using Internal and External Power Switches z Build Soft-Start function internally z Under-Voltage Protection z Small SOT-23-6 Package z RoHS Compliant and 100% Lead (Pb)-Free.

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Datasheet Details

Part number RT9275
Manufacturer Richtek
File Size 303.20 KB
Description Step-up DC/DC Converter
Datasheet download datasheet RT9275 Datasheet

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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.

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Preliminary RT9275 Tiny Package, High Efficiency, Step-Up DC/DC Converter General Description The RT9275 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load currents. The low start-up input voltage below 1V makes RT9275 suitable for 1 to 4 battery cells applications. Both internal 2.5A switch and driver for driving external power devices (NMOS or NPN) are provided. It is incorporating with softstart function, Under Voltage protection function. RT9275 is available in SOT-23-6 package.