FEATURES

 Integrated 80mΩ Power MOSFET

 2V to 24V Input Voltage

 1MHz Fixed Switching Frequency

 Internal 4A Switch Current Limit

 Adjustable Output Voltage

 Internal Compensation

 Up to 28V Output Voltage

 Automatic Pulse Frequency Modulation

 Mode at Light Loads

 up to 97 Efficiency

 Available in a 6-Pin SOT23-6 Package

APPLICATIONS

 Battery-Powered Equipment

 Set-Top Boxed

 White LED Driver

 Power Bank

 DSL and Cable Modems and Routers

GENERAL DESCRIPTION

The STI3508 is a constant frequency, 6-pin

SOT23 current mode step-up converter

intended for small, low power applications.

The STI3508 switches at 1MHz and allows

the use of tiny, low cost capacitors and

inductors 2mm or less in height. Internal

soft-start results in small inrush current and

extends battery life.

The STI3508 features automatic shifting to

pulse frequency modulation mode at light

loads. The STI3508 includes under-voltage

lockout, current limiting, and thermal

overload protection to prevent damage in

the event of an output overload. The

STI3508 is available in a small 6-pin SOT-23

package.