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TPS40050

NOT RECOMMENDED FOR NEW DESIGNS

Wide Input Voltage Synchronous Buck Controller

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Data sheet
TPS40050 is not recommended for new designs
This product continues to be available for existing customers. New designs should consider an alternate product.
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Similar functionality to the compared device
LM25145 ACTIVE 6V to 42V Synchronous Buck DC-DC Controller With Wide Duty Cycle Range This alternative device offers higher efficiency and smaller solution size with frequency synchronization and increased power capability.

TPS40050

NOT RECOMMENDED FOR NEW DESIGNS
Data sheet Order now

Product details

Vin (min) (V) 8 Vin (max) (V) 40 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Topology Buck Controller Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 35 Features Enable, Frequency synchronization Iq (typ) (µA) 1500 Duty cycle (max) (%) 100
Vin (min) (V) 8 Vin (max) (V) 40 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Topology Buck Controller Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 35 Features Enable, Frequency synchronization Iq (typ) (µA) 1500 Duty cycle (max) (%) 100
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Operating Input Voltage 8 V to 40 V
  • Input Voltage Feed-Forward Compensation
  • < 1 % Internal 0.7-V Reference
  • Programmable Fixed-Frequency Up to 1 MHz Voltage Mode Controller
  • Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
  • 16-Pin PowerPAD™ Package (Package (JC = 2°C/W)
  • Thermal Shutdown
  • Externally Synchronizable
  • Programmable High-Side Current Limit
  • Programmable Closed-Loop Soft-Start
  • TPS40050 Source Only
  • TPS40051 Source/Sink
  • TPS40053 Source/Sink With VOUT Prebias
  • APPLICATIONS
    • Power Modules
    • Networking/Telecom
    • Industial
    • Servers

PowerPAD™ is trademark of Texas Instruments.
  • Operating Input Voltage 8 V to 40 V
  • Input Voltage Feed-Forward Compensation
  • < 1 % Internal 0.7-V Reference
  • Programmable Fixed-Frequency Up to 1 MHz Voltage Mode Controller
  • Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
  • 16-Pin PowerPAD™ Package (Package (JC = 2°C/W)
  • Thermal Shutdown
  • Externally Synchronizable
  • Programmable High-Side Current Limit
  • Programmable Closed-Loop Soft-Start
  • TPS40050 Source Only
  • TPS40051 Source/Sink
  • TPS40053 Source/Sink With VOUT Prebias
  • APPLICATIONS
    • Power Modules
    • Networking/Telecom
    • Industial
    • Servers

PowerPAD™ is trademark of Texas Instruments.

The TPS4005x is a family of high-voltage, wide input (8 V to 40 V), synchronous, step-down converters. The TPS4005x family offers design flexibility with a variety of user programmable functions, including soft-start, UVLO, operating frequency, voltage feed-forward, high-side current limit, and loop compensation.

The TPS4005x are also synchronizable to an external supply. They incorporate MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFETs. Gate drive logic incorporates anti-cross conduction circuitry to prevent simultaneous high-side and synchronous rectifier conduction.

The TPS4005x uses voltage feed-forward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients with near constant gain with input variation which eases loop compensation.

The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation utilizing an internal fault counter for longer duration overloads.

The TPS4005x is a family of high-voltage, wide input (8 V to 40 V), synchronous, step-down converters. The TPS4005x family offers design flexibility with a variety of user programmable functions, including soft-start, UVLO, operating frequency, voltage feed-forward, high-side current limit, and loop compensation.

The TPS4005x are also synchronizable to an external supply. They incorporate MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFETs. Gate drive logic incorporates anti-cross conduction circuitry to prevent simultaneous high-side and synchronous rectifier conduction.

The TPS4005x uses voltage feed-forward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients with near constant gain with input variation which eases loop compensation.

The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation utilizing an internal fault counter for longer duration overloads.
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* Data sheet TPS40050 Synchronous Buck Controller datasheet (Rev. F) 09 Jun 2004

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