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STCF01 - Step-up converter

Description

The STCF01 is a dedicated IC designed to drive two, three, or four white, cell phone camera flash LEDs with constant current.

Features

  • Supply voltage range: 2.6V to 5.5V 17V Maximum output voltage Two current levels up to 300mA set with external resistors Dedicated pin to select the required level of current Operating frequency: 1.5MHz: PWM Controller Torch mode supported Shutdown pin with true load disconnection Efficiency: 90% at 100mA; 80% at 300mA DFN10L (3mm x 3mm) Package to set the required current for each level. Compared to the linear current control technique, thi.

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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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STCF01 Step-up converter for cell phone camera flash LEDs General features ■ ■ ■ ■ ■ ■ ■ ■ ■ Supply voltage range: 2.6V to 5.5V 17V Maximum output voltage Two current levels up to 300mA set with external resistors Dedicated pin to select the required level of current Operating frequency: 1.5MHz: PWM Controller Torch mode supported Shutdown pin with true load disconnection Efficiency: 90% at 100mA; 80% at 300mA DFN10L (3mm x 3mm) Package to set the required current for each level. Compared to the linear current control technique, this method allows designers to achieve the best and most efficient performance possible with the selected current, thereby avoiding linear element losses. The Shutdown (SHDN) pin saves power when the camera flash is not used by consuming less than 0.
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