SL1578  High Efficlency 1.2MHz Step-Up Converter

General Description

The SL1578 is a constant frequency, current mode step-up converter  intended  for small,  low power applications. The SL1578 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 SL1578 includes under-voltage lockout, current limiting, and thermal overload protection to prevent damage in the event of an output overload. The SL1578 is available in a small 6-pin SOT23-6 package. 

Features

Integrated 80mΩ Power MOSFET     

Output Adjustable from 0.6V                                                                                  

2.5V to 24V Input Voltage                          

 Internal Compensation 

Up to 28V Output Voltage                                   

Thermal Shutdown 

1.2MHz Fixed Switching Frequency                           

UP to 93% Efficiency

Internal 4A Switch Current Limit                             

MSL3 Package Level

 Applications 

Battery-Powered Equipment                                      

Set-top Box 

DSL and Cable Modems and Routers                

LCD Bias Supply

Tablet Personal Computer                            

Portable Media Player 

Simplified Application Circuit