INTRODUCTION

The MT3608 is a constant frequency, 6-pin SOT23 current mode step-up converter intended for small, low power applications. The MT3608 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 MT3608 features automatic shifting to pulse frequency modulation mode at light loads. The MT3608 includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The MT3608 is available in a small 6-pin SOT-23 package.

FEATURES

• Integrated 80mΩ Power MOSFET

• 2V 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 97% 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