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 Shut...

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