Stackable 2 Channel Multiphase or 2 Channel Independent Output Controller

TPS40140 is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
Similar but not functionally equivalent to the compared device:
TPS40322 ACTIVE Dual Output or Two-phase Synchronous Buck Controller This product has an increased feature set and wider operating range.
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Product details

Parameters

We are not able to display this information. Please refer to the product data sheet.

Features

  • 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
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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.

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Technical documentation

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Type Title Date
* Datasheet TPS40140 Dual or 2-Phase, Stackable Controller datasheet (Rev. I) Jan. 31, 2015
Application notes Multiphase Buck Design from Start to Finish, Part 1 (Rev. A) May 24, 2019
Selection guides Analog for Xilinx (R) FPGAs Selection Guide - 2015 (Rev. B) Jan. 07, 2015
Technical articles Power Tips - DDR memory is everywhere! Mar. 01, 2014
Selection guides Power Management for Xilinx FPGAs Feb. 04, 2014
Technical articles Power Tips: When to choose multiphase Oct. 31, 2013
Technical articles Powering FPGAs made easy Jul. 30, 2013
Selection guides TI's Compact Power Solution for Avnet's Xilinx Kintex-7 FPGA Board Mar. 14, 2012
Selection guides Power Management for Altera FPGAs (Rev. E) Feb. 22, 2012
User guides TPS40140EVM-003 A 32A Single Output Two Phase Stackable Sync Buck Converter (Rev. A) Jan. 21, 2010
More literature TPS40140RHH Test Report Feb. 15, 2008
Application notes Spreadsheet modeling tool for AAJ Article SLYT273 Jun. 05, 2007
Application notes Spreadsheet modeling tool helps analyze power- and ground-plane voltage drops May 18, 2007
User guides Using the TPS40140EVM-002 (Rev. A) Jan. 05, 2007

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODELS Download
SLIM023.ZIP (115 KB) - PSpice Model
SIMULATION MODELS Download
SLIM051.TSC (157 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLIM052.ZIP (109 KB) - TINA-TI Spice Model
BILL OF MATERIALS (BOM) Download
SLUR007.PDF (28 KB)
SCHEMATICS Download
SLTR025.PDF (53 KB)
SCHEMATICS Download
SLUR008.PDF (87 KB)
SCHEMATICS Download
SLVR356.PDF (193 KB)

Reference designs

REFERENCE DESIGNS Download
Multiphase, Sync Buck, Buck-Boost, Boost for IP Converter (25V @ 1A)
PMP3061 — PMP3061 is a multiple output power supply that supports a number of different rails. The input for this design is 12V with the following devices and outputs TPS40140 (1.2V@40A), TPS40190 (3.3V@6A), TPS54350 (-5V@200mA), TPS40210 (25V@1A), TPS5430 (-12V@200mA). The supply has a range of topologies (...)
Design files
REFERENCE DESIGNS Download
Sync buck (5V@10)
PMP4590 — This interleaved Buck converter can be configured as single output (interleaved) or dual output. The board has the extention feature to drive a slave unit.
Design files
REFERENCE DESIGNS Download
High Current Four Phase Synchronous Buck 5V@55A Reference Design
PMP9035 Two TPS40140 control ICs are used to build a four phase synchronous buck converter.  The input voltage is 12V with an output of 5V at up to 55A.  A four phase design allows for very high efficiency and helps to spread the heat out on the PCB.  The design was built and tested using (...)
REFERENCE DESIGNS Download
Design files
REFERENCE DESIGNS Download
High current core/ASIC/FPGA supply
PMP5738 — 70Amps/100Amax high current ASIC core supply, four phases w/ 2x TPS40140, for use with 12V bus system
Design files
REFERENCE DESIGNS Download
TPS40140 Dual Phase Supply
PMP4594 — universal buck & board for dual & interleaved outputs at TPS40140; RevE2 = interleaved, single output & tested, RevF = dual output
Design files
REFERENCE DESIGNS Download
Generates two outputs 16V@13A and 5V@10A using TPS40140
PMP4591 — This board is the slave unti of PMP4590, adding two more outputs.
Design files
REFERENCE DESIGNS Download
5V input; 6 Phase High Efficiency Synchronous Buck; 0.9V 120A output
PMP6845 — The PMP6845 reference design uses three TPS40140's to control 6 Synchronous Buck Phases. Main switch pair for each phase is the dual CSD86350Q5D. The optional added CSD16325Q5 for the low side enhances efficiency, especially at full load. Efficiency is 87.5% at full load and over 90% for loads from (...)
REFERENCE DESIGNS Download
Design files
REFERENCE DESIGNS Download
Design files
REFERENCE DESIGNS Download
Multiphase Synchronous Buck Converter, Six phase 12V Input to 1V at 150A
PMP2064 — PMP2064 uses the TPS40140 in a stackable configuration to generate a multiphase design capable of high current output. The design is setup for each board to use the TPS40140 IC to generate a 2 phase output at up to 50A. Multiple boards can be linked together to create a large current output. The (...)
REFERENCE DESIGNS Download

CAD/CAE symbols

Package Pins Download
VQFN (RHH) 36 View options

Ordering & quality

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