LTC3773 Datasheet | Linear Technology

Features - Current Mode Controller with Onboard MOSFET Drivers - Programmable Power Up/Down Tracking - Wide VIN Range: 3.3V to 36V (VCC = 5V) - ±1% 0.6V VFB Accuracy Over Temperature - Power Good Output Voltage Monitor - Phase-Lockable or Adjustable Frequency: 160k Hz to 700k Hz - OPTI-LOOP® pensation Minimizes COUT - Current Foldback and Overvoltage Protection - Selectable Continuous, Discontinuous or Burst Mode® Operation at Light Load - Programmable Phase Operation - Available in 5mm x 7mm QFN and 36-Lead SSOP Packages APPLICATIONS - Servers, Tele, Industrial Power Supplies - General Purpose Multiple Rail DC/DC - FPGA and DSP Requirements Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking DESCRIPTION The LTC®3773 is a high performance, 3-phase, triple output synchronous step-down switching regulator controller with output voltage power up/down tracking capability. The controller allows for sequential, coincident or ratiometric tracking. This 3-phase controller drives its output stages with 120° phase separation at frequencies of up to 700k Hz per phase minimizing the RMS input current. Light load efficiency can be maximized by using selectable Burst Mode operation. The 0.6V precision reference supports output voltages from 0.6V to 5V. Fault protection Features include output overvoltage, input undervoltage lockout plus current foldback under shortcircuit or overload conditions. , LT, LTC, LTM, Burst Mode and OPTI-LOOP are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5408150, 5481178, 5705919, 5929620, 6144194, 6177787, 6304066, 6498466, 6580258, 6611131. TYPICAL APPLICATION High Efficiency, 3-Phase, Triple Synchronous DC/DC Step-Down Controller 10k PGOOD 0.1μF SW1, 2,...