Dual-Channel, Flash LED Driver with 2A/Ch and I2C Interface



The MP3336A is a compact, dual-channel, high-power, flash LED driver that can drive up to 2A in flash mode for each LED. The MP3336A improves image and video quality in low light environments for camera phones. The MP3336A operates with a selectable 1/2/3/4MHz switching frequency and uses a synchronous, current-mode PWM boost converter to regulate the LED current with two high current sources. The MP3336A provides a highly efficient, optimized solution for smaller PCB spaces.

The MP3336A features a standard I2C interface, dual LED channels, rich protection modes, and high power density and performance. The MP3336A can also support flash, assist, indicator, and 5V DC modes.

The cathodes of the dual-flash LED are referenced to GND, which improves thermal performance in layout. The MP3336A is available in a WLCSP-20 (1.6mmx2.0mm) package.


  • 2.7V~5.5V Input Voltage
  • 1/2/3/4MHz Selectable MaxFsw
  • Fsw Fold-Back Function
  • 400kHz I2C Compatible Interface
  • Standby/Flash/Assist/Indicator/5V DC Modes

Flash Mode

  • Up to 2A/Ch Programmable Current with ±7% Accuracy for Each LED, 7.84mA/Step

Assist Mode

  • Up to 319mA/Ch Programmable Current with ±7% Accuracy for Each LED, 1.25mA/Step

Indicator Mode

  • Works in 31.5kHz PWM Dimming Mode with 2/16, 3/16, 4/16, 5/16 Duty Cycles
  • Used for Blinking and 128/256/512ms Selectable Blinking Time

5V DC Mode

  • Output Constant 5V DC Voltage
  • Separated EN1 Pin for NFC Application
  • 1A to 5.5A Programmable Input DC Current Limit Protection
  • External Strobe/TX Pin
  • VIN to VOUT Disconnection Function
  • Low-Battery Voltage Protection
  • LED Short/Open Protection
  • VOUT-GND Short Protection
  • Over-Voltage Protection (OVP)
  • Over-Temperature Protection (OTP)
  • Input Under-Voltage Lockout (UVLO) Protection
  • WLCSP-20 (1.6mmx2.0mm) Package


  • PackageWLCSP-20 (1.6x2.0)
  • fsw (min) (MHz)1
  • fsw (max) (MHz)4
  • Vout (max) (V)5.2
  • Iout (max) (A)4
  • Vin (max) (V)5.5
  • Vin (min) (V)2.7
  • Ishutdown (µA)2

Communication Interface Device USB to I2C/PMBus, included with product evaluation kit or can be purchased separately. 

The EVKT-USBI2C-02 is included with the product evaluation kit, or it can be purchased separately. This communication interface provides the USB to I2C port as well as PMBus capabilities. It is designed to work with MPS I2C and PMBus products, and Virtual Bench Pro, and I2C GUI tools.  Together with MPS Virtual Bench Pro and I2C GUI tools, it provides a quick and easy way to evaluate the performance of MPS digital products.

The EVKT-USBI2C-02 kit includes:

  • 1 USB to I2C communication device interface
  • 1 USB cable
  • 1 10-pin ribbon cable
  • 1 3-pin ribbon cable
  • Thumbdrive with datasheet and driver files

¥2,653.00 + tax