Step-Up White LED Converter
Data Sheets EOL (End of Life)


# of Channels 1
Max Current/Ch (mA) 20
LEDs/ Ch. 6
Operating Voltage (MIN) (V) 2.5
Operating Voltage (MAX) (V) 16
Reference Voltage 200
Frequency (MHz) 1.2
Max Voltage (V) 27
Quiescent Current (μA) 3.2
Efficiency (%) 84
Package SOT23-6
Application Backlight
Features Integrated Schottky diode, Enable pin, PWM dimming, Soft-start
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The SP6699 is an inductor-based DC/DC converter designed to drive up to six white LEDs in series for LCD modules and keypad backlighting functions.
Only one feedback resistor is needed to control the LED current and obtain the desired brightness. A 1.2MHz constant frequency PWM control scheme is used, enabling the usage of small external components. A typical application needs a 1mm tall inductor and a 0.22μF output capacitor. Additionally, the boost circuit Schottky diode is integrated, further reducing the overall foot print.
A logic controlled enable pin allows this device to be placed in a low current consumption mode of a few microamps. Furthermore, the SP6699 is equipped with an over voltage output protection circuit which clamps the output voltage to 30 volts when any LED fails or in other abnormal conditions.
The SP6699 is offered in a small lead free, RoHS compliant 6-pin SOT23 package.

Rev. 2.1.0 Datasheet Features

  • High output voltage: up to 27V
    • Drives 2 to 5 LEDs @ 20mA
    • High efficiency up to 84%
  • Integrated Schottky diode
  • Fast 1.0MHz switching frequency
  • 200mV feedback voltage
  • PWM dimming capability up to 1KHz
  • Analog dimming
  • Over output voltage protection
  • Internal soft-start circuit
  • Small SOT23-6 package

Rev. 3.0.0 Datasheet Features (ref. PCN_14-0415-01)
  • High Output Voltage: Up to 30V
    • Drives 2 to 8 LEDs @ 20mA
    • High Efficiency up to 84%
  • Integrated Schottky Diode
  • Fast 1.2MHz Switching Frequency
  • 200mV Feedback Voltage
  • PWM Dimming Capability up to 2KHz
  • Over Output Voltage Protection
  • Internal Soft Start Circuit
  • Small SOT-23-6 Package

  • Cellular phones
  • LCD modules
  • Keypad backlighting
  • Digital cameras
  • GPS receivers
  • Portable media players

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets SP6699 30V Step Up White LED Driver 3.0.1 February 2020 733 KB
Application Notes AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian April 2019 1.2 MB
User Guides & Manuals SP6699 Evaluation Board Manual A March 2008 142.8 KB
Product Flyers Step Up White LED Converter 1.0.0 June 2008 204.9 KB
Product Brochures Power Management Brochure October 2020 2.4 MB
Symbols & Footprints SP6699EK-L/TR CAD File (.bxl) September 2018 80.7 KB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
SP6699EK-L/TR N Y Y Y Y L3 / 260ᵒC SOT-23-6

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 PDN
SP6699EK-L SOT-23-6 OPT2 -40 85 OBS
SP6699EK-L/TR SOT-23-6 OPT2 -40 85 EOL
SP6699EB Board 0 85 OBS
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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
SOT-23-6 OPT2
  • JEDEC Reference: MO-178
  • MSL Pb-Free: L3 @ 260C
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 190C/W
  • Bulk Pack Style: Canister
  • Quantity per Bulk Pack: na
  • Quantity per Reel: 3000
  • Quantity per Tube: n/a
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 180 x 8 x 4
  • Tape & Reel Unit Orientation: Quadrant 2
  • Dimensions: mm
  • Length: 2.90
  • Width: 1.60
  • Thickness: 1.45
  • Lead Pitch: 0.95


Distribution Date Description File
10/02/2023 Product Discontinuation Notice
10/27/2022 MaxLinear has qualified wafer foundry JKFAB, Taiwan, in order to increase production capacity and to facilitate long term support of the product line. There are no changes in device reliability, form, fit or function.
02/19/2016 Material change. Qualified copper wire bonding assembly.
01/09/2015 Alternate Assembly Site Change. Qualified JCET ChuZhou for assembly of the listed parts.
04/28/2014 Design and datasheet changes. The SP6699 has been updated to improve compatibility with PWM dimming inputs.
08/07/2009 Notice of Obsolescence – Selected Power Management Parts Discontinued due to low market demand, effective immediately.
07/15/2009 These products will be dry packed to eliminate possible moisture related failures at board assembly. There is no change to Form, Fit, or Function as stated in the applicable datasheets. Products having moisture sensitivity greater than level 1 require dry packs according to the internal procedures and JEDEC guidelines.

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