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.