SLB628D High Effic i ency 1.2MHz 2.5A Current Mode Step Up Converter

GENERAL DESCRIPTION 

The SLB628D  is a constant  frequency, 6-pin SOT23 current mode step-up converter intended for small,  low power  applications. The SLB628D 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 SLB628D features automatic shifting to pulse frequency modulation mode at  light  loads. The SLB628D includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The SLB628D  is available  in a small 6-pin SOT-23 package. 

FEATURES 

⚫  Integrated 80mΩ Power MOSFET 

⚫  2.2V to 16V Input Voltage 

⚫  1.2MHz Fixed Switching Frequency 

⚫  Adjustable Over Current Protection: 0.5A ~2.5A 

⚫  Internal 2.5A Switch Current Limit(OC pin floating) 

⚫  Adjustable Output Voltage 

⚫  Internal Compensation 

⚫  Over Voltage Protection 

⚫  Up to 20V 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 

TYPICAL APPLICATION