Home Power management DC/DC switching regulators DC/DC converters
Home
Power management
DC/DC switching regulators
DC/DC converters

TPS62751

ACTIVE

2.25MHz, Step-Down Converter w/ Programmble Input Current Limits for USB powered Applications

Order now
Data sheet

TPS62751

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 1.3 Vin (max) (V) 6 Vin (min) (V) 2.9 Vout (max) (V) 5.1 Vout (min) (V) 0.8 Features Adjustable current limit, Enable, Output discharge, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00078 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 1.3 Vin (max) (V) 6 Vin (min) (V) 2.9 Vout (max) (V) 5.1 Vout (min) (V) 0.8 Features Adjustable current limit, Enable, Output discharge, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00078 Duty cycle (max) (%) 100
WSON (DSK) 10 6.25 mm² 2.5 x 2.5
  • Efficiency > 90% at Nominal Operating Conditions
  • Programmable Average Input Current Limits for USB Applications
    • 50mA to 300mA for Low Current Limit Range
    • 300mA to 1.3A for High Current Limit Range ±10% Current Accuracy
  • Stable Output Voltage for Load Transients to Minimize Overshoot at Load Step Response
  • Hot Plug and Reverse Current Protection
  • Automatic PFM/PWM Mode transition (TPS62750)
  • Forced PWM for Noise Sensitive Applications (TPS62751)
  • VIN Range From 2.9V to 6V
  • Adjustable VOUT From 0.8V to 0.85×VIN
  • Softstart for Inrush Current Prevention
  • 2.25 MHz Fixed Frequency Operation
  • Short Cicruit and Thermal Shutdown Protection
  • Available in a 2.5 × 2.5 10 pin SON Package
  • APPLICATIONS
    • USB Wireless Modems
    • Portable USB peripherals
    • Handheld Computers
  • Efficiency > 90% at Nominal Operating Conditions
  • Programmable Average Input Current Limits for USB Applications
    • 50mA to 300mA for Low Current Limit Range
    • 300mA to 1.3A for High Current Limit Range ±10% Current Accuracy
  • Stable Output Voltage for Load Transients to Minimize Overshoot at Load Step Response
  • Hot Plug and Reverse Current Protection
  • Automatic PFM/PWM Mode transition (TPS62750)
  • Forced PWM for Noise Sensitive Applications (TPS62751)
  • VIN Range From 2.9V to 6V
  • Adjustable VOUT From 0.8V to 0.85×VIN
  • Softstart for Inrush Current Prevention
  • 2.25 MHz Fixed Frequency Operation
  • Short Cicruit and Thermal Shutdown Protection
  • Available in a 2.5 × 2.5 10 pin SON Package
  • APPLICATIONS
    • USB Wireless Modems
    • Portable USB peripherals
    • Handheld Computers

The TPS6275x device is a highly efficient synchronous step down dc-dc converter optimized for USB powered portable applications. It can provide up to 1300mA average input current and is ideal for applications connected to a USB host.

With an input voltage range of 2.9 V to 6.0V, the device supports batteries with extended voltage range and is ideal for powering USB applications where USB compliance is required.

The TPS62750 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. The TPS62751 operates in Forced PWM mode allowing use in applications that are noise sensitive. An output discharge allows the load to discharge in shutdown.

The 10% accurate average input current limit can be programmed with an external resistor, allowing use in applications such as USB, where the current drawn from the bus must be limited to 500mA.

The TPS6275x allows the use of small inductors and capacitors to achieve a small solution size. The TPS6275x is available in a 2,5mm × 2,5mm 10-pin SON package.

The TPS6275x device is a highly efficient synchronous step down dc-dc converter optimized for USB powered portable applications. It can provide up to 1300mA average input current and is ideal for applications connected to a USB host.

With an input voltage range of 2.9 V to 6.0V, the device supports batteries with extended voltage range and is ideal for powering USB applications where USB compliance is required.

The TPS62750 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. The TPS62751 operates in Forced PWM mode allowing use in applications that are noise sensitive. An output discharge allows the load to discharge in shutdown.

The 10% accurate average input current limit can be programmed with an external resistor, allowing use in applications such as USB, where the current drawn from the bus must be limited to 500mA.

The TPS6275x allows the use of small inductors and capacitors to achieve a small solution size. The TPS6275x is available in a 2,5mm × 2,5mm 10-pin SON package.
filter Find other DC/DC converters
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPS62250 ACTIVE 2.25MHz, 1A Peak Current Limited Step-Down Converter Smaller QFN package and lower quiescent current

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 11
Top documentation Type Title Format options Date
* Data sheet High Efficiency Step-Down Converter for USB Applications datasheet (Rev. A) 24 Sep 2009
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Oct 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 Oct 2016
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011

Design & development

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

Calculation tool

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
Supported products & hardware

Supported products & hardware
Download
Package Pins CAD symbols, footprints & 3D models
WSON (DSK) 10 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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

View all forum topics

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