5A, 500kHz PowerWise® Synchronous Buck Regulator Evaluation Module


Order now


The LM20125 is a full featured buck switching regulator capable of driving up to 5A of load current. The nominal 500 kHz switching frequency of the LM20125 reduces the size of the power stage components while still allowing for highly efficient operation. The LM20125 is capable of converting an input voltage between 2.95V and 5.5V down to an output voltage as low as 0.8V. Fault protection features include cycle-by-cycle current limit, output power good, and output over-voltage protection. The dual function soft-start/tracking pin can be used to control the startup response of the LM20125, and the precision enable pin can be used to easily sequence the LM20125 in applications with sequencing requirements. The LM20125 is available in an eTSSOP-16 package with an exposed pad for enhanced thermal performance.

  • Input voltage range 2.95V to 5.5V
  • Accurate current limit minimizes inductor size
  • 96% efficiency with 500 kHz switching frequency
  • 32 mΩ integrated FET switches
  • Starts up in pre-biased loads
  • Output voltage tracking
  • Peak current mode control
  • Adjustable output voltage down to 0.8V
  • Adjustable Soft-Start with external capacitor
  • Precision enable pin with hysteresis
  • Integrated OVP, UVLO, power good and thermal shutdown
  • eTSSOP-16 exposed pad package
AC/DC & DC/DC converters (integrated FET)
LM20125 2.95-5.5V, 5A, Current Mode Synchronous Buck Regulator with Optional Automotive Grade
Download View video with transcript Video

Order & start development

Evaluation board

LM20125EVAL — 5A, 500kHz PowerWise® Synchronous Buck Regulator Evaluation Module

Log in to order
In stock / Out of stock
Not available on TI.com
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* EVM User's guide AN-1687 LM20125 Evaluation Board (Rev. B) 03 May 2013
Certificate LM20125EVAL EU Declaration of Conformity (DoC) 02 Jan 2019
EVM User's guide AN-1687 LM20125 Evaluation Board (Rev. A) 30 Oct 2007

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. ​​​​​​​​