DESCRIPTION

A7539 series is a high efficiency, low ripple, high frequency PFM control DC-DC boost converter.

A7539 series requires only three external components, the device can change the low voltage input of battery step-up into output voltages for electronic devices.

The A7539 is available in SOT-23 and SOT-25 packages.

FEATURES

 Maximum efficiency: 94

 Maximum operating frequency: 300 k Hz

 Low Quiescent Current: 15μA

 Output Voltage: 1.8V ~ 5.0V (step 0.1V)

 Output Accuracy: ± 2.5

 In put voltage: 0.9V ~ 6.5V

 low ripple and low noise

 Small volume

 Available in SOT-23 and SOT-25 p ackage s

APPLICATION

 1 to 3 batteries of electronic equipment

 Electronic dictionaries, digital cameras

 LED flashlights, LED Light

 Blood pressure moni to rs, MP3, remote control toys

 Wireless headsets, wireless mouse, keyboard

 M edical devices, anti lost alarm

 Car alarm, charger, VCR, PDA and other

handheld electronic devices