TPS40140

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS40140 SLUS660I – SEPTEMBER 2005 – REVISED JANUARY 2015 TPS40140 Dual or 2-Phase, Stackable Controller 1 Features 1 VDD from 4.5 to 15 V, With Internal 5-V Regulator VOUT from 0.7 V to 5.8 V Converts from 15-V Input to 0.7-V Output at 1 MHz Dual-Output or 2-Phase Interleaved Operation, Stackable to 16 Phases Supports Prebiased Outputs Programmable Switching Frequency up to 1 MHz/Phase 0.5% Internally Trimmed 0.7-V Reference 10-μA Shutdown Current Current Mode Control With Forced Current Sharing (1) 1- to 40-V Power Stage Operation Range Power Sharing From Different Input Voltage Rails, (for Example, Master From 5 V, Slave From 12 V) True Remote Sensing Differential Amplifier Programmable Input Undervoltage Lockout (UVLO) Resistive or Inductor DCR Current Sensing Provide a 6-Bit Digitally Controlled Output When Used With TPS40120 36-Pin VQFN Package 2 Applications Graphic Cards Internet Servers Networking Equipment Telecommunications Equipment DC Power Distributed Systems 3 Description The TPS40140 is a multifunctional synchronous buck controller that can be configured to provide either a single-output 2-phase power supply or a power supply that supports two independent outputs. Several TPS40140 controllers can be stacked up to a 16-phase single output power supply. Alternatively, several controllers providing multiple independent outputs can be...