|Information||1A Synchronous Step-Down Regulator|
|Special Features||Light Load PFM, Enable, Over Current Protection, Synchronous Rectification, Thermal Shutdown, UVLO, 100% Duty Cycle|
|VIN MIN (V)||2.5|
|VIN MAX (V)||5.5|
|# of Outputs||1|
|VOUT MIN (V)||0.6|
|VOUT MAX (V)||5|
|X x Y Package Dimension (mm)||-|
|Control Mode||Current Mode PWM|
|Operating Temperature (°C)||-40 to 125|
The XRP6658 is a synchronous current mode PWM step-down (buck) converter capable of delivering up to 1Amp of current and optimized for portable battery operated operations.
Based on a current mode 1.5MHz constant frequency PWM control scheme, the XRP6658 reduces the overall component count and solution footprint as well as providing a low output voltage ripple and excellent line and load regulation. It also implements a PFM mode to improve light load efficiency as well as a 100% duty cycle LDO mode. Output voltage is adjustable as low as 0.6V with a better than 3% accuracy while a low quiescent current supports the most stringent battery operations conditions. Built-in over temperature and undervoltage lock-out protections insure safe operations under abnormal operating conditions.
The XRP6658 is offered in a RoHS compliant, “green”/halogen free 5-pin SOT23 package.
- Guaranteed 1A output current
- Input voltage: 2.5V to 5.5V
- 1.5MHz PWM current mode control
- PFM mode operations at light load
- 100% duty cycle LDO mode operations
- As low as 0.6V adjustable output voltage
- Internal compensation network
- 30µA quiescent current
- Over temperature and UVLO protections
- RoHS compliant “green”/halogen free 5-pin SOT23 package
Documentation & Design Tools
|Data Sheets||XRP6658 1A 1.5MHz PFM/PWM Synchronous Step-Down Converter||2.0.0||February 2020||1.4 MB|
|Application Notes||AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian||April 2019||1.2 MB|
|User Guides & Manuals||XRP6658 Evaluation Board Manual||2.1.0||February 2012||365.4 KB|
|Product Flyers||Power Management & Interface Products for Cable, Satellite and IP STB/Home Gateway||March 2018||2 MB|
|Product Flyers||1A 1.5MHz Synchronous Step-Down Converter||September 2010||855.6 KB|
|Product Brochures||Power Management Brochure||October 2020||2.4 MB|
|Symbols & Footprints||XRP6658ISTR-F CAD File (.bxl)||September 2018||82.2 KB|
Quality & RoHS
Parts & Purchasing
|Part Number||Pkg Code||Min Temp||Max Temp||Status||Buy Now||Order Samples|
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
FAQs & Support
Search our list of FAQs for answers to common technical questions.
For material content, environmental, quality and reliability questions review the Quality tab or visit our Quality page.
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Submit a Technical Support Question As a New Question
Find the product page of the part that you want to get an evaluation board for and click on Parts & Purchasing. Example:
Find the icons under Buy Now or Order Samples:
Click on the Buy Now icon and see who has stock and click on the Buy button:
Alternatively, you can click on the Order Samples
If the icons are missing, then contact Customer Support.
In this example, we looked for XRA1201. Click on part number header or on the link at the bottom of the result. This brings you to the product page. For example:
Click on Parts & Purchasing, highlighted with the blue arrow above. The screen changes to:
Notice the status column and the “Show obsolete parts” link. A legend tells you the definition of the different statuses. Click on the “Show obsolete parts” link to see EOL or OBS part numbers along with the Active part numbers, the legend still present:
Another method to find out if a part is OBS or EOL is to click on SUPPORT at the top:
And then Product Change Notifications:
Type the part into the search, and click on one of the part numbers from the drop down menu. Then you can look for the Product Discontinuation Notice, which generally is at the top of the list, for example:
If you see this, it tells you that this particular orderable part has been discontinued and when the last order date is, or was. If you click on the file, then you can view the notice we sent about this if you purchased the part in the recent past. It may also advise of a replacement part. When an orderable part first becomes discontinued, Product Discontinuation Notices are sent are sent to those who have purchased the parts in the recent past, if purchased directly, with a dated opportunity to place a last order.