Product details

Vin (Min) (V) 2.25 Vin (Max) (V) 5.5 Vout (Min) (V) 0.7 Vout (Max) (V) 4 Iout (Max) (A) 15 Iq (Typ) (uA) 1500 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 600 Features Enable, Synchronous Rectification Operating temperature range (C) -40 to 85 Regulated outputs (#) 1 Number of phases 1 Rating Catalog
Vin (Min) (V) 2.25 Vin (Max) (V) 5.5 Vout (Min) (V) 0.7 Vout (Max) (V) 4 Iout (Max) (A) 15 Iq (Typ) (uA) 1500 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 600 Features Enable, Synchronous Rectification Operating temperature range (C) -40 to 85 Regulated outputs (#) 1 Number of phases 1 Rating Catalog
HVSSOP (DGQ) 10 9 mm² 3 x 3
  • Operating Input Voltage 2.25 V to 5.5 V
  • Output Voltage as Low as 0.7 V
  • 1% Internal 0.7 V Reference
  • Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
  • Externally Adjustable Soft-Start and Overcurrent Limit
  • Fixed-Frequency Voltage-Mode Control
    • TPS40007, 300 kHz
    • TPS40009, 600 kHz
  • Source/Sink with VOUT Prebias
  • 10-Lead MSOP PowerPad™ Package for Higher Performance
  • Thermal Shutdown
  • Internal Boostrap Diode
  • APPLICATIONS
    • Networking Equipment
    • Telecom Equipment
    • Base Stations
    • Servers
    • DSP Power
    • Power Modules

PowerPAD and Predictive Gate Drive are trademarks of Texas Instruments Incorporated.

  • Operating Input Voltage 2.25 V to 5.5 V
  • Output Voltage as Low as 0.7 V
  • 1% Internal 0.7 V Reference
  • Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
  • Externally Adjustable Soft-Start and Overcurrent Limit
  • Fixed-Frequency Voltage-Mode Control
    • TPS40007, 300 kHz
    • TPS40009, 600 kHz
  • Source/Sink with VOUT Prebias
  • 10-Lead MSOP PowerPad™ Package for Higher Performance
  • Thermal Shutdown
  • Internal Boostrap Diode
  • APPLICATIONS
    • Networking Equipment
    • Telecom Equipment
    • Base Stations
    • Servers
    • DSP Power
    • Power Modules

PowerPAD and Predictive Gate Drive are trademarks of Texas Instruments Incorporated.

The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.

The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor connected to the SS/SD pin. The SS/SD pin is also used for shutdown.

The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.

The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor connected to the SS/SD pin. The SS/SD pin is also used for shutdown.

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Technical documentation

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Type Title Date
* Data sheet LOW INPUT BUCK CONTROLLER, TPS40007/9 datasheet (Rev. B) 08 Feb 2005
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
User guide Using the TPS40009EVM-001 03 Mar 2004

Design & development

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

Evaluation board

TPS40007EVM-001 — TPS40007EVM-001 Evaluation Module

The TPS40007 is a voltage-mode, synchronous buck PWM controller that uses TI's proprietary Predictive Gate Drive™ technology to wring maximum efficiency from step-down converters. This controller provides a bootstrap circuit to allow the use of an N-channel MOSFET as the topside buck switch (...)
Not available on TI.com
Evaluation board

TPS40009EVM-001 — TPS40009EVM-001 Evaluation Module

The TPS40009 is a voltage-mode, synchronous buck PWM controller that uses TI's proprietary Predictive Gate Drive™ technology to wring maximum efficiency from step-down converters. This controller provides a bootstrap charging circuit to allow the use of an N-channel MOSFET as the topside buck (...)

Not available on TI.com
Simulation model

TPS40009 Unencrypted PSpice Model Package (Rev. B)

SLVC175B.ZIP (228 KB) - PSpice Model
Simulation model

TPS40009 TINA-TI Average Reference Design (Rev. A)

SLVM036A.TSC (62 KB) - TINA-TI Reference Design
Simulation model

TPS40009 TINA-TI Average Spice Model (Rev. A)

SLVM037A.ZIP (7 KB) - TINA-TI Spice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Calculation tool

Type III Compensation Calculation Tool (Rev. E)

SLUC263E.ZIP (185 KB)
Package Pins Download
HVSSOP (DGQ) 10 View options

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