LTC3810

FEATURES n High Voltage Operation: Up to 100V n Large 1Ω Gate Drivers n No Current Sense Resistor Required n Dual N-Channel MOSFET Synchronous Drive n Extremely Fast Transient Response n ±0.5% 0.8V Voltage Reference n Programmable Output Voltage Tracking/Soft-Start n Generates 10V Driver Supply from Input Supply n Synchronizable to External Clock n Selectable Pulse Skip Mode Operation n Power Good Output Voltage Monitor n Adjustable On-Time/Frequency: tON(MIN) < 100ns n Adjustable Cycle-by-Cycle Current Limit n Programmable Undervoltage Lockout n Output Overvoltage Protection n 28-Pin SSOP Package APPLICATIONS n 48V Telecom and Base Station Power Supplies n Networking Equipment, Servers n Automotive and Industrial Control Systems L, LT, LTC, LTM, Linear Technology, Burst Mode and the Linear logo are registered trademarks and No RSENSE is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 5847554, 6304066, 6476589, 6580258, 6677210, 6774611. LTC3810 100V Current Mode Synchronous Switching Regulator Controller DESCRIPTION The LTC3810 is a synchronous step-down switching regulator controller that can directly step-down voltages from up to 100V, making it ideal for telecom and automotive applications. The LTC3810 uses a constant on-time valley current control architecture to deliver very low duty cycles with accurate cycle-by-cycle current limit, without requiring a sense re...