TPS40140 Datasheet | Texas Instruments

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 - Telemunications 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 synchronized in an interleaving pattern for improved input ripple current. The TPS40140 can convert from a 15-V input to a 0.7-V output at 1 MHz. Each phase operates at a switching frequency of up to 1 MHz. The two phases in one device operate 180° out-of-phase. In a multiple-device stackable configuration, the phase shift of the slaves, relative to a master, is programmable. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) VQFN (36) 6.00 mm × 6.00 mm (1) Patents Pending (1) For all available packages, see the orderable addendum at the end of the data sheet. TPS40140 HDRV1 Simplified Schematic VIN...