MP3371
DESCRIPTION
The MP3371 is 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 control mode and pulse-width modulation (PWM) control to maintain boost converter regulation. The MP3371 employs a standard I2C digital interface to set the operation mode, switching frequency, full-scale current for each channel, sync or nonsync mode, dimming mode and duty, and various protection thresholds.
The MP3371 features high efficiency due to lowheadroom 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.
FEATURES
- 8 Channels with Max 50m A/Channel
- Synchronous Converter with 50V LS-FET/HS-
FET 155m/235mΩ On Resistance
- 3V to 30V Input Voltage Range
- 470m V LED Regulation Voltage at 20m A
- Max 2.5% Current Matching
- 350k Hz,...
