MP3331 2A, Synchronous Boost Flash LED Driver 2 with I C Interface The Future of Analog IC Technology DESCRIPTION FEATURES The MP3331 is a highly-efficient, 2A, single flash 2.7V to 5.5V Input Voltage LED driver in a very compact package for high- 1/2/3/4MHz Selectable Switching Frequency resolution camera phones that improves image and Switching Frequency Foldback Function 2 video quality in low-light environments. The device 400kHz I C Compatible Interface operates in a 1/2/3/4MHz synchronous DC/DC Standby/Flash/Assist/Torch/Indicator/5V DC boost converter to provide an optimized solution for Mode smaller PCB spaces with higher efficiency. FLASH MODE: 2 Up to 2A Programmable Current with The MP3331 features a standard I C interface, +/-7% Accuracy single LED channel, rich protection modes, and ASSIST/TORCH MODE: high power density and performances. It supports Up to 508mA Programmable Current with flash/assist/torch/indicator/5V DC modes. +/-7% Accuracy The cathode of the flash LED is referenced to GND, INDICATOR MODE: which improves thermal performance. It is available Works in 31.5kHz PWM Dimming Mode with in a WLCSP9-1.7mm x 1.7mm package. 2/16, 3/16, 4/16, 5/16 Duty Cycle 5V DC MODE: Fixed 5V Output Voltage External Torch/Strobe Pin Low-Battery Voltage Protection Pre-Flash for Auto Detect Load Condition LED Short/Open Protection VOUT-GND Short Protection Over-Voltage Protection Over-Temperature Protection Input Under-Voltage Lockout Protection Thermal Protection Input to Output Disconnection Function Available in a WLCSP9-1.7mm x 1.7mm Package APPLICATIONS Camera Phone LED Flash Tablets Digital Still Camera All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are registered Ttademarks of Monolithic Power Systems, Inc. MP3331 Rev. 1.04 www.MonolithicPower.com 1 5/22/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. 2 MP3331-2A SYNCHRONOUS BOOST FLASH LED DRIVER WITH I C INTERFACE TYPICAL APPLICATION Typical Application Circuit MP3331 Rev. 1.04 www.MonolithicPower.com 2 5/22/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved.