LM5000EP

LM5000EP Enhanced Plastic High Voltage Switch Mode Regulator May 2004 LM5000EP Enhanced Plastic High Voltage Switch Mode Regulator General Description The LM5000EP is a monolithic integrated circuit specifically designed and optimized for flyback, boost or forward power converter applications. The internal power switch is rated for a maximum of 80V, with a current limit set to 2A. Protecting the power switch are current limit and thermal shutdown circuits. The current mode control scheme provides excellent rejection of line transients and cycle-by-cycle current limiting. An external compensation pin and the built-in slope compensation allow the user to optimize the frequency compensation. Other distinctive features include softstart to reduce stresses during start-up and an external shutdown pin for remote ON/OFF control. There are two operating frequency ranges available. The LM5000-3EP is pin selectable for either 300kHz (FS Grounded) or 700kHz (FS Open). The LM5000-6EP is pin selectable for either 600kHz (FS Grounded) or 1.3MHz (FS Open). The device is available in a low profile 16-lead TSSOP package or a thermally enhanced 16-lead LLP package. ENHANCED PLASTIC Extended Temperature Performance of −40˚C to +125˚C Baseline Control - Single Fab & Assembly Site Process Change Notification (PCN) Qualification & Reliability Data Solder (PbSn) Lead Finish is standard Features n 80V internal switch n Operating input voltage range of 3.1V to 40V n Pin selectable operat...