GENERAL DESCRIPTION

The MT3608B is a constant frequency, 6-pin SOT23 current mode step-up converter intended for small, low power applications. The MT3608B switches at 1.2MHz 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 MT3608B features automatic shifting to pulse frequency modulation mode at light loads. The MT3608B includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The MT3608B is available in a small 6-pin SOT-23 package.  

FEATURES

? Integrated 80mΩ Power MOSFET

? 2.5V to 24V Input Voltage

? 1.2MHz 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 93% Efficiency

? Available in a 6-Pin SOT23-6 Package

APPLICATIONS

? Battery-Powered Equipment

? Set-Top Boxed

? LCD Bais Supply

? DSL and Cable Modems and Routers

? Networking cards powered from PCI or

PCI express slots