Ultra-Low Quiescent Current, High Efficiency Boost Regulator


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  • True shutdown
  • 700mA output current at 3.3V Input; 4.2V output
  • 92% efficiency from 2.7VIN to 3.3VOUT
  • Wide input voltage range: 2.7V to 4.5V
  • 5V fixed or adjustable output
  • 0.3Ω switch
  • Integrated synchronous rectifier:0.3Ω
  • Anti-ringing switch technology
  • Programmable inductor peak current
  • Logic shutdown control
  • Low 0.8V or 0.288V reference voltage
  • Small 10-pin DFN or MSOP package


Design Tools

Reference Designs


Pkg Code Details Quantities Dimensions PDF
  • JEDEC Reference: MO-187
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 214.0ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack:
  • Quantity per Reel: 2500
  • Quantity per Tube: 50
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 12 x 8
  • Tape & Reel Unit Orientation: Pin 1 at sprocket hole.
  • Dimensions: mm
  • Length: 3
  • Width: 3
  • Thickness: 0.85
  • Lead Pitch: 0.50

Parts & Purchasing

Part Number Pkg Code RoHS Min Temp Max Temp Status Buy Now Order Samples
SP7648ER DFN10 0 70 OBS
SP7648ER/TR DFN10 -40 85 OBS
SP7648ER-L DFN10 -40 85 OBS Suggested:
SP7648ER-L/TR DFN10 -40 85 OBS Suggested:
SP7648EU MSOP10 -40 85 OBS
SP7648EU/TR MSOP10 0 70 OBS
SP7648EU-ES MSOP10 -40 85 OBS
SP7648EU-L MSOP10 -40 85 OBS Suggested:
SP7648EU-L/TR MSOP10 -40 85 OBS Suggested:
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.
Distribution Date Description File
07/20/2015 Product discontinuation notification PDN_15-0105-01-1033.pdf
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. PCN_13-0522-04-1033.pdf
08/29/2011 Material change: Mold compound and die attach material are changed and the listed parts will be fully Green (halogen-free). Migrating to green environment and material standardization. PCN_11-0810-01-1033.pdf
02/28/2007 Product Obsolescence Letter and Discontinuation Notification. Discontinued. POL_022807-1033.pdf