TPS40100

ACTIVE

4.5-V to 18-V, synchronous buck controller with advanced sequencing and output margining

Product details

Vin (min) (V) 4.5 Vin (max) (V) 18 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode current mode Topology Buck Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 5.5 Features Dynamic Voltage Scaling, Frequency synchronization, Power good, Remote Sense, Synchronous Rectification, Tracking Iq (typ) (µA) 1800 Duty cycle (max) (%) 85 Number of phases 1
Vin (min) (V) 4.5 Vin (max) (V) 18 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode current mode Topology Buck Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 5.5 Features Dynamic Voltage Scaling, Frequency synchronization, Power good, Remote Sense, Synchronous Rectification, Tracking Iq (typ) (µA) 1800 Duty cycle (max) (%) 85 Number of phases 1
VQFN (RGE) 24 16 mm² 4 x 4
  • Operation over 4.5 V to 18 V Input Range
  • Adjustable Frequency (Between 100 kHz and 600 kHz) Current Feedback Control
  • Output Voltage Range From 0.7 V to 5.5 V
  • Simultaneous, Ratiometric and Sequential Startup Sequencing
  • Adaptive Gate Drive
  • Remote Sensing (Via Separate GND/PGND)
  • Internal Gate Drivers for N-channel MOSFETs
  • Internal 5-V Regulator
  • 24-Pin QFN Package
  • Thermal Shutdown
  • Programmable Overcurrent Protection
  • Power Good Indicator
  • 1%, 690-mV Reference
  • Output Margining, 3% and 5%
  • Programmable UVLO (with Programmable Hysteresis)
  • Frequency Synchronization
  • APPLICATIONS
    • Servers
    • Networking Equipment
    • Cable Modems and Routers
    • XDSL Modems and Routers
    • Set-Top Boxes
    • Telecommunications Equipment
    • Power Supply Modules

  • Operation over 4.5 V to 18 V Input Range
  • Adjustable Frequency (Between 100 kHz and 600 kHz) Current Feedback Control
  • Output Voltage Range From 0.7 V to 5.5 V
  • Simultaneous, Ratiometric and Sequential Startup Sequencing
  • Adaptive Gate Drive
  • Remote Sensing (Via Separate GND/PGND)
  • Internal Gate Drivers for N-channel MOSFETs
  • Internal 5-V Regulator
  • 24-Pin QFN Package
  • Thermal Shutdown
  • Programmable Overcurrent Protection
  • Power Good Indicator
  • 1%, 690-mV Reference
  • Output Margining, 3% and 5%
  • Programmable UVLO (with Programmable Hysteresis)
  • Frequency Synchronization
  • APPLICATIONS
    • Servers
    • Networking Equipment
    • Cable Modems and Routers
    • XDSL Modems and Routers
    • Set-Top Boxes
    • Telecommunications Equipment
    • Power Supply Modules

The TPS40100 is a mid voltage, wide-input (between 4.5 V and 18 V), synchronous, step-down controller. The TPS40100 offers programmable closed loop soft-start, programmable UVLO (with programmable hysteresis), programmable inductor sensed current limit and can be synchronized to other timebases. The TPS40100 incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFET. Gate drive logic incorporates adaptive anti-cross conduction circuitry for improved efficiency, reducing both cross conduction and diode conduction in the rectifier MOSFET. The externally programmable current limit provides a hiccup overcurrent recovery characteristic.

The TPS40100 is a mid voltage, wide-input (between 4.5 V and 18 V), synchronous, step-down controller. The TPS40100 offers programmable closed loop soft-start, programmable UVLO (with programmable hysteresis), programmable inductor sensed current limit and can be synchronized to other timebases. The TPS40100 incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFET. Gate drive logic incorporates adaptive anti-cross conduction circuitry for improved efficiency, reducing both cross conduction and diode conduction in the rectifier MOSFET. The externally programmable current limit provides a hiccup overcurrent recovery characteristic.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet TPS40100 BUCK CONTROLLER datasheet 12 May 2005
User guide TPS40100 Buck Controller Evaluation Module User's Guide (Rev. A) PDF | HTML 01 Mar 2022
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018

Design & development

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

Package Pins CAD symbols, footprints & 3D models
VQFN (RGE) 24 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos