|Information||800mA Synchronous Buck Regulator|
|Special Features||Light Load PFM, Enable, Over Current Protection, Power Good, Synchronous Rectification, Thermal Shutdown, UVLO Adjustable, Internal Compensation, 100% Duty Cycle|
|VIN MIN (V)||2.7|
|VIN MAX (V)||5.5|
|# of Outputs||1|
|VOUT MIN (V)||0.8|
|VOUT MAX (V)||5|
|X x Y Package Dimension (mm)||-|
|Operating Temperature (°C)||-40 to 85|
The SP6654 is an 800mA synchronous buck regulator which is ideal for portable applications that use a Li-ion or 3-cell alkaline/NiCD/NiMH input. The SP6654’s proprietary control loop, 20μA light load quiescent current, and 0.3Ω power switches provide excellent efficiency across a wide range of output currents. As the input battery supply decreases towards the output voltage, the SP6654 seamlessly transitions into 100% duty cycle operation - further extending useful battery life. The SP6654 is protected against overload and short-circuit conditions with a precise inductor peak current limit. Other features include programmable undervoltage lockout, externally programmed output voltage down to 1.0V, logic level shutdown control and an open drain power good indicator when VOUT is above 94% of its programmed value.
- Ultra-low 20µA quiescent current
- 98% efficiency possible
- 800mA output current
- 2.7V to 5.5V input voltage range
- Output adjustable down to 1.0V
- No external FETs required
- 1.25A inductor peak current limit
- 100% duty ratio low dropout operation
- 80µA light load quiescent current in dropout
- Logic shutdown control
- Programmable UVLO
- Small 10-pin MSOP package and small DFN package
- Power good indicator
Documentation & Design Tools
|Data Sheets||SP6654 High Efficiency 800mA Synchronous Buck Regulator||1.0.0||December 2005||183.5 KB|
|Application Notes||AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian||April 2019||1.2 MB|
|Application Notes||ANP-22, Filter Design in Continuous Conduction Mode||B||January 2007||270.6 KB|
|User Guides & Manuals||SP6654 Evaluation Board Manual||1.0.0||February 2005||184.3 KB|
|Product Brochures||Power Management Brochure||October 2020||2.4 MB|
|Symbols & Footprints||SP6654ER-L/TR CAD File (.bxl)||September 2018||24.7 KB|
Quality & RoHS
|Part Number||RoHS | Exempt||RoHS||Halogen Free||REACH||TSCA||MSL Rating / Peak Reflow||Package|
|SP6654ER-L/TR||N||Y||Y||Y||Y||L1 / 260ᵒC||DFN10 3x3 OPT1|
Click on the links above to download the Certificate of Non-Use of Hazardous Substances.
Parts & Purchasing
|Part Number||Pkg Code||Min Temp||Max Temp||Status||Suggested Replacement||Buy Now||Order Samples||PDN|
|SP6654ER||DFN10 3x3 OPT1||-40||85||OBS|
|SP6654ER/TR||DFN10 3x3 OPT1||-40||85||OBS|
|SP6654ER-L||DFN10 3x3 OPT1||-40||85||OBS||SP6654ER-L/TR|
|SP6654ER-L/TR||DFN10 3x3 OPT1||-40||85||Active||Order|
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
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.
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:
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If the icons are missing, then contact Customer Support.