LTC3726 Datasheet | Linear Technology

Secondary-Side Synchronous Forward Controller Features - Secondary-Side Control for Fast Transient Response - Self-Starting Architecture Eliminates Need for Separate Bias Regulator - Proprietary Gate Drive Encoding Scheme Reduces System plexity - Current Mode Control Ensures Current Sharing - PLL Fixed Frequency: 100k Hz to 500k Hz - ±1% Output Voltage Accuracy - OPTI-LOOP pensation - Available in a Narrow 16-Lead SSOP Package U APPLICATIO S - Isolated 48V Telemunication Systems - Internet Servers and Routers - Distributed Power Step-Down Converters - Automotive and Heavy Equipment DESCRIPTIO The LTC®3726 is a secondary-side controller for synchronous forward converters. When used in conjunction with the LTC3705/LTC3725 gate driver and primary-side controllers, the part creates a plete isolated power supply that bines the simplicity of OPTI-LOOP® pensation with the speed of secondary-side control. The LTC3726 has been designed to simplify the design of highly efficient, secondary-side forward converters. Working in concert with the LTC3705 or LTC 3725, the LTC3726 forms a robust, self-starting converter that eliminates the need for the separate bias regulator that is monly used in secondary-side control applications. In addition, a proprietary scheme is used to multiplex gate drive signals and DC bias power across the isolation barrier through a single, tiny pulse transformer. The LTC3726 is available in a 16-lead SSOP package. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. OPTI-LOOP is a registered trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6144194. Other patents pending. TYPICAL APPLICATIO 36V-72V to 3.3V/20A Isolated Forward Converter VIN+ 1µF 100V x3 VIN- Si7852DP MURS120 T1...