12A, 300KHz Buck Regulator
Data Sheets OBS (Obsolete)


Information 12A 300KHz Buck Regulator
# of Outputs 1
IOUT (A) 12
VIN MAX (V) 22
IQ (µA) 1500
VOUT MIN (V) 0.8
VOUT MAX (V) 20.2
Frequency (kHz) 300
Accuracy (%) 1.0
Efficiency (%) 93
Package DFN-26
X x Y Package Dimension (mm) 7x4
Control Mode Voltage Mode PWM
Special Features Enable, Power Sequencing, Synchronous Rectification, Thermal Shutdown, UVLO Adjustable, Built-in 5V LDO, Soft Start Adjustable, Adjustable Current Limit
Operating Temperature (°C) -40 to 125
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The SP7662 is a synchronous voltage mode PWM step-down (buck) regulator capable of a constant output current up to 12A. A wide 5V to 22V single input voltage range allows for single supply operations from industry standard 5V, 12V and 18V power rails. Operations down to 3V are supported with an additional biasing voltage.

With a 300kHz constant operating frequency and integrated high and low side switch, the SP7662 reduces the overall component count and solution footprint. In addition to a 1% output set point accuracy, this device provides high efficiency, low ripple and excellent line and load regulation. An enable function and soft-start feature allow for controlled power up sequencing implementation.

Built-in current limiting, UVLO, output short-circuit and over temperature protection ensure safe operation under abnormal operating conditions.

The SP7662 is offered in a RoHS compliant, lead free 26-pin 7mm x 4mm DFN package.

  • 4.5V to 5.5V or 4.75V to 22V input voltage range using single supply
  • 3V to 22V input voltage range using dual supply
  • ±1% 0.8V reference
  • 12A output capability
  • Current limiting using inductor DCR
  • Built in low RDS(ON) power switches
  • 300 kHz fixed frequency operation
  • 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 95% possible
  • Non-synchronous start up into a pre-charged output
  • Available in RoHS compliant, lead free packaging: small 7mm x 4mm DFN package
  • U.S. patent #6,922,041

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets SP7662 Powerblox 12A 300KHz Synchronous Step Down Regulator 2.1.0 September 2012 2.1 MB
Application Notes AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian April 2019 1.2 MB
Application Notes ANP-27, An Alternative to POLA™ Modules: PowerBlox™ A June 2007 545.3 KB
User Guides & Manuals SP7662 Evaluation Board Manual 6.0.0 February 2007 545.6 KB
Design Solutions DS-46, Improve Efficiency and Extend Input Voltage Range of Second Generation PowerBlox With Applications Of External Vcc Bias Voltage November 2007 37.8 KB
Design Solutions DS-52, Application of Charge Pump To Utilize PowerBlox At Only 3V Input; High Efficiency Buck Conversion With Up To 8A Output Current November 2007 121.5 KB
Design Solutions DS-61, SP7662 2nd GenPowerBlox Provides 12A LED Drive Current From A 15V Nominal DC Input For High Current LED Signage Applications off AC Adapter Secondary DC Output June 2007 97.2 KB
Spice Models - Generic Generic Spice Model November 2007 4 KB
Spice Models - OrCAD Orcad Spice Model November 2007 49.6 KB
Product Brochures Power Management Brochure October 2020 2.4 MB
SIMPLIS Models SP7662 SIMPLIS Model May 2011 12.9 MB
Symbols & Footprints SP7662ER-L/TR CAD File (.bxl) September 2018 45.9 KB
SIMPLIS Models Powerlab Netlists
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
SP7662ER-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 PDN
SP7662ER-L DFN26 7x4 -40 125 OBS SP7662ER-L/TR
SP7662ER-L/TR DFN26 7x4 -40 125 OBS XR76112ELTR-F
SP7662ER/TR DFN26 7x4 -40 85 OBS
SP7662EB Board 0 125 OBS XR76112EVB
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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
01/30/2023 Product Discontinuation Notice
07/11/2017 Product Discontinuation Notification
09/14/2015 Metal layer change Yield improvement
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.
04/19/2012 Change in FET supplier. Due to unavailability of the ANPEC FETs.
03/02/2010 Material Change; Datasheet change; Wafer fab transfer Due to unavailability of the controller chip in Polar fab, a new controller has been designed and fabricated in Jazz to replace the existing chip. FET chips have also been replaced to match the new controller.

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