FEATURES
n 3.3A, 42V Combined Power Switch n Master/Slave (1.9A/1.4A) Switch Design n Output Short Circuit Protection n Wide Input Range: 2.5V to 22V Operating, 40V Maximum Transient n Switching Frequency Up to 2.5MHz n Easily Configurable as a Boost, SEPIC, Inverting or Flyback Converter n User Configurable Undervoltage Lockout n Low VCESAT Switch: 250mV at 2.75A (Typical) n Can be Synchronized to External Clock n Can Be Synchronized to other Switching Regulators n High Gain SHDN Pin Accepts Slowly Varying Input Signals n 14-Pin 4mm × 3mm DFN and 16-Lead MSE Packages APPLICATIONS
n Local Power Supply n Vacuum Fluorescent Display (VFD) Bias Supplies n TFT-LCD Bias Supplies n Automotive Engine Control Unit (ECU) Power L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 7579816. DESCRIPTION
The LT®3581 is a PWM DC/DC converter with built-in fault protection features to aid in protecting against output shorts, input/output overvoltages, and overtemperature conditions.
Linear Technology
