EV3371-R-00A, Evaluation Board, MP3371GR, Synchronous Boost (Step Up), PWM, 3 V to 30 V, 45 V/ 50 mA Out

EV3371-R-00A is an evaluation board designed for the MP3371, a synchronous boost converter with eight current channels designed to drive WLED arrays for LCD panels in tablets and notebook backlighting applications. The MP3371 uses peak current mode and pulse-width modulation (PWM) control to regulate the boost converter. The MP3371 employs a standard I2C digital interface to set the operation mode, switching frequency, fullscale current for each channel, sync or nonsync mode, dimming mode and duty, and various protection thresholds. The MP3371 features high efficiency due to low-headroom voltage for LED regulation and a small on resistance of the switching MOSFET. The synchronous rectifier saves PCB size and total BOM cost. The MP3371 is available in a QFN-24 (4mmx4mm) package.

• 8 channels with maximum 50mA/channel
• Synchronous converter with 50V LS-FET/HS-FET with 155m/235mohm on resistance
• 3V to 30V input voltage range
• 470mV LED regulation voltage at 20mA
• Max 2.5% current matching
• 350kHz, 500kHz, 650kHz, 800kHz, 950kHz, or 1.2MHz selectable switching frequency
• 0mA to 50mA full-scale LED current, 8bit, 0.196mA/step
• LED short/open, OTP, OCP, inductor or diode short protection
• 1.8A or 2.5A current limit
• Cascade function to share power stage