6A, 600kHz Buck Regulator


Information 6A 600kHz Buck Regulator
Package DFN-26
IQ (µA) 1500
Special Features Enable, Power Sequencing, Synchronous Rectification, Thermal Shutdown, UVLO Adjustable, Soft Start Adjustable
VIN MIN (V) 2.5
VIN MAX (V) 28
# of Outputs 1
VOUT MIN (V) 0.8
Frequency (kHz) 600
Efficiency (%) 92
Accuracy (%) 1.0
IOUT (A) 6
X x Y Package Dimension (mm) 7x4
Control Mode Voltage Mode PWM
Operating Temperature (°C) -40 to 125
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The SP7652 is a synchronous step-down switching regulator optimized for high efficiency. The part is designed to be especially attractive for dual supply, 12V step-down with 5V used to power the controller. This lower Vcc voltage minimizes power dissipation in the part. The SP7652 is designed to provide a fully integrated buck regulator solution using a fixed 600kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output short-circuit protection. The SP7652 is available in the space saving DFN package.

  • 2.5V to 28V step-down achieved using dual input
  • Output boltage down to 0.8V
  • 6A output capability
  • Built in low RDSON power FETs (15 mΩ typ)
  • Highly integrated design, minimal components
  • 600 kHz fixed frequency operation
  • UVLO detects both VCC and VIN
  • Over temperature protection
  • Short-circuit protection with auto restart
  • Wide BW Amp allows type II or III compensation
  • Programmable soft-start
  • Fast transient response
  • High efficiency: greater than 92% possible
  • Nonsynchronous start up into a pre-charged output
  • Small 7mm x 4mm DFN package

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets SP7652 Powerblox 6A 28V 600KHz Synchronous Step Down Regulator 2.0.1 February 2020 1.5 MB
Application Notes AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian April 2019 1.2 MB
User Guides & Manuals SP7652 Evaluation Board Manual 1.0.0 July 2007 1.1 MB
Product FAQs SP7652 FAQ 1.0.0 August 2006 140.7 KB
Design Solutions DS-33, Solution Converts Up to 28V Input To Drive LEDs to 6A, with Power Loss Reducing 0V-10V Active Dimming Circuit November 2007 67.7 KB
Design Solutions DS-39, Providing 48W (6A At 8V) from 12V Input Using Sipex PowerBlox At Over 95% Peak Efficiency November 2007 78.5 KB
Spice Models - Generic Generic Spice Model November 2007 4.2 KB
Spice Models - OrCAD Orcad Spice Model November 2007 21.1 KB
Product Brochures Power Management Brochure October 2020 2.4 MB
Symbols & Footprints SP7652ER-L/TR CAD File (.bxl) September 2018 45.5 KB
SIMPLIS Models SP7652 SIMPLIS Model May 2011 12.9 MB
SIMPLIS Models Powerlab Netlists
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
SP7652ER-L/TR N Y Y Y Y L3 / 260ᵒC DFN26 7x4

Click on the links above to download the Certificate of Non-Use of Hazardous Substances.

Additional Quality Documentation may be available, please Contact Support.

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Suggested Replacement Buy Now Order Samples PDN
SP7652BER-L DFN26 7x4 -40 85 EOL
SP7652ER DFN26 7x4 -40 85 OBS
SP7652ER/TR DFN26 7x4 -40 85 OBS
SP7652ER-L DFN26 7x4 -40 85 OBS SP7652ER-L/TR
SP7652ER-L/TR DFN26 7x4 -40 85 Active Order
Show obsolete parts
Part Status Legend
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.


Pkg Code Details Quantities Dimensions PDF
DFN26 7x4
  • JEDEC Reference: n/a
  • MSL Pb-Free: L3 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 36ºC/W
  • Bulk Pack Style: Canister
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 3000
  • Quantity per Tube: n/a
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 16 x 8
  • Tape & Reel Unit Orientation: Quadrant 1
  • Dimensions: mm
  • Length: 7
  • Width: 4
  • Thickness: 1.00
  • Lead Pitch: 0.5


Distribution Date Description File
05/01/2017 Embedded FETs updated to latest production version.
01/05/2017 Addition of an alternate qualified location, ANST, China.
07/26/2016 Product discontinuation notification. Discontinued.
10/16/2013 Qualified PPF (NiPdAu) lead termination finish in assembly to replace matte-tin plating. Material change.
10/04/2013 Addition of an alternate qualified assembly site, UTAC Thailand, for assembly using copper or gold wire bonding. Material change and alternate assembly site.
02/28/2007 Product Obsolescence Letter and Discontinuation Notification. Discontinued.

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.
For ordering information and general customer service visit our Contact Us page.

Submit a Technical Support Question As a New Question

Vin and LX nodes are directly connected to internal MOSFETs. Monitor the LX node. If there is excessive ringing then try an RC snubber across the bottom FET, say 2.2nF in series with 2- to 3 Ohms.

The best way to determine this is to go to maxlinear.com and type the part into the search function. At or near the top of the results you should see something that looks like:

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.