LTC3824 Datasheet | Linear Technology

Features n Wide Input Range: 4V to 60V n Current Mode Constant Frequency PWM n Very Low Dropout Operation: 100% Duty Cycle n Programmable Switching Frequency: 200k Hz to 600k Hz n Selectable High Efficient Burst Mode® Operation: 40µA Quiescent Current n Easy Synchronization n 8V, 2A Gate Drive (VCC > 10V) for Industrial High Voltage P-Channel MOSFET n Programmable Soft-Start n Programmable Current Limit n Available in a Small 10-Pin Thermally Enhanced MSE Package Applications n Industrial and Automotive Power Supplies n Tele Power Supplies n Distributed Power Systems High Voltage Step-Down Controller With 40µA Quiescent Current Description The LTC®3824 is a step-down DC/DC controller designed to drive an external P-channel MOSFET. With a wide input range of 4V to 60V and a high voltage gate driver, the LTC3824 is suitable for many industrial and automotive high power applications. Constant frequency current mode operation provides excellent performance. The LTC3824 can be configured for Burst Mode operation. Burst Mode operation enhances low current efficiency (only 40µA quiescent current) and extends battery run time. The switching frequency can be programmed up to 600k Hz and is easily synchronizable. Other Features include current limit, soft-start, micropower shutdown, and Burst Mode disable. The LTC3824 is available in a 10-lead MSE power package. L, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5731964. Typical Application VIN 5.5V TO 60V CIN + 33µF 100V 5V/2A Buck Converter CCAP 0.1µF CAP VCC SENSE LTC3824 RS 0.025Ω 392k RSET GND GATE 22µH 100p F VOUT 5V COUT 2A 100µF ×2 SYNC/MODE VFB SS VC 0.1µF...