Home Power management AC/DC & DC/DC converters (integrated FET)
Home
Power management
AC/DC & DC/DC converters (integrated FET)
NEW

TPS561243

PREVIEW

4.2V to 17V input voltage, 1A, 1.2MHz synchronous buck converter in SOT563 with Eco-mode

Order now
Data sheet

TPS561243

PREVIEW
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter Iout (max) (A) 1 Vin (min) (V) 4.2 Vin (max) (V) 17 Switching frequency (min) (kHz) 1200 Switching frequency (max) (kHz) 1200 Features Enable, Light Load Efficiency, Over Current Protection, Soft Start Fixed, Synchronous Rectification Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 7 Iq (typ) (µA) 110 Duty cycle (max) (%) 95
Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter Iout (max) (A) 1 Vin (min) (V) 4.2 Vin (max) (V) 17 Switching frequency (min) (kHz) 1200 Switching frequency (max) (kHz) 1200 Features Enable, Light Load Efficiency, Over Current Protection, Soft Start Fixed, Synchronous Rectification Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 7 Iq (typ) (µA) 110 Duty cycle (max) (%) 95
SOT-5X3 (DRL) 6 2.56 mm² 1.6 x 1.6
  • Configured for a wide range of applications
    • Input voltage range: 4.2V to 17V
    • Output voltage range: 0.6V to 7V
    • Reference voltage: 0.6V
    • ±1.5% reference voltage accuracy
    • Integrated FETs: 100mΩ and 55mΩ
    • Low quiescent current for TPS561243: 110µA
    • Switching frequency: 1280kHz
    • Maximum 95% large duty cycle operation
    • Fixed soft-start time: 1.4ms
  • Easy of use and small design size
    • TPS561243 Eco-mode and TPS561246 FCCM mode at light load
    • D-CAP3™ control mode with fast transient response
    • Support start-up with prebiased output
    • Non-latch for OV, OT, and UVLO protection
    • Cycle-by-cycle over current limit
    • Hiccup mode for UV protection
    • Operating junction temperature range: –40°C to 125°C
    • SOT563 package: 1.6mm × 1.6mm
  • Create a custom design using the TPS56124x with the WEBENCH® Power Designer
  • Configured for a wide range of applications
    • Input voltage range: 4.2V to 17V
    • Output voltage range: 0.6V to 7V
    • Reference voltage: 0.6V
    • ±1.5% reference voltage accuracy
    • Integrated FETs: 100mΩ and 55mΩ
    • Low quiescent current for TPS561243: 110µA
    • Switching frequency: 1280kHz
    • Maximum 95% large duty cycle operation
    • Fixed soft-start time: 1.4ms
  • Easy of use and small design size
    • TPS561243 Eco-mode and TPS561246 FCCM mode at light load
    • D-CAP3™ control mode with fast transient response
    • Support start-up with prebiased output
    • Non-latch for OV, OT, and UVLO protection
    • Cycle-by-cycle over current limit
    • Hiccup mode for UV protection
    • Operating junction temperature range: –40°C to 125°C
    • SOT563 package: 1.6mm × 1.6mm
  • Create a custom design using the TPS56124x with the WEBENCH® Power Designer

The TPS56124x is a simple, easy-to-use, synchronous buck converter with input voltage ranging from 4.2V to 17V and supports up to 1A continuous current.

The device is designed to operate with minimum external component counts and low standby current.

This switch mode power supply (SMPS) device employs D-CAP3 control mode providing a fast transient response and supporting both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

The TPS561243 operates in Eco-mode, which maintains high efficiency during light load operation. The TPS561246 operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. The TPS56124x integrates complete protection including OCP, UVLO, OTP, and UVP with hiccup.

The TPS56224x is available in a 6-pin, 1.6mm × 1.6mm SOT563 (DRL) package. The junction temperature is specified from –40°C to 125°C.

The TPS56124x is a simple, easy-to-use, synchronous buck converter with input voltage ranging from 4.2V to 17V and supports up to 1A continuous current.

The device is designed to operate with minimum external component counts and low standby current.

This switch mode power supply (SMPS) device employs D-CAP3 control mode providing a fast transient response and supporting both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

The TPS561243 operates in Eco-mode, which maintains high efficiency during light load operation. The TPS561246 operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. The TPS56124x integrates complete protection including OCP, UVLO, OTP, and UVP with hiccup.

The TPS56224x is available in a 6-pin, 1.6mm × 1.6mm SOT563 (DRL) package. The junction temperature is specified from –40°C to 125°C.
filter Find other AC/DC & DC/DC converters (integrated FET)
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 TPS56124x 4.2V to 17V Input, 1A, Synchronous Buck Converter in SOT563 datasheet PDF | HTML 25 Apr 2024
Application note How to Co-Layout Three Common SOT-563 Package Pinouts (Rev. A) PDF | HTML 25 Jan 2024
Application note How to do Co-Layout Between SOT-563 Package and SOT-236 Package (Rev. A) PDF | HTML 10 Jul 2023

Design & development

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

Evaluation board

TPS562243EVM — TPS562243 evaluation module

TPS562243 evaluation module (EVM) is a simple, easy-to-use, 2A synchronous step-down converter in SOT563 package. TPS562243EVM is a fully assembled and tested circuit for evaluating the TPS562243 step-down converter. TPS562243EVM operates from 4.2V to 17V input, 12V nominal and provides a 1.05V (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS562246EVM — TPS562246 evaluation module

TPS562246 evaluation module (EVM) is a simple, easy-to-use, 2A synchronous step-down converter in SOT563 package. TPS562246EVM is a fully assembled and tested circuit for evaluating the TPS562243 step-down converter. TPS562246EVM operates from 4.2V to 17V input, 12V nominal, and provides a 1.05V (...)

User guide: PDF | HTML
Not available on TI.com
Package Pins Download
SOT-5X3 (DRL) 6 View options
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