Description

The SC104 is a micro power dc-dc step-up converter which converts an input voltage, in the range of 1.55V to 10V, to a constant current. The part features a range of user programmable voltages and currents including dynamic adjustment of the “constant” current. The converter is capable of generating output voltages as low as the input supply voltage and up to 38V. During shutdown, the part draws a typical 500nA standby current.

Features

◆ Adjustable output current using pulse width modulation or analog voltage input

◆ 38V output capability supports up to 10 white LEDs

◆ Wide range of input voltages 1.55V to 10V

◆ Low quiescent current

◆ 0.5µA standby current in shutdown

◆ Programmable cycle by cycle current limit

◆ Surface mount packaging (3x3mm 8pin MLP)

◆ Output voltage and over-temperature protection

Applications

◆ White LED supplies

◆ Color LED supplies

◆ Cellular phones

◆ PDAs

◆ Electronic books

◆ Handheld computers

◆ Wireless web appliances