Single String, 38V Vout Boost LED Driver with Current Source

Talk to an Engineer or get a Quote
Upgrade to myMPS+

Product Description

The MP3370 is a fixed-frequency boost converter with current source. It is ideal for medium-to-high current boost LED driver applications.

The MP3370 regulates the output voltage up to 38V to drive more LEDs with an integrated 100mΩ/50V low-side MOSFET. The peak current-mode regulation and external compensation components allow the MP3370 control loop to be optimized over a wide variety of input voltage, output voltage, and load current applications. The internal soft-start, cycle-by-cycle current limiting and input under voltage lockout prevent overstressing or damage to sensitive external circuitry at start-up and fault conditions.

The MP3370 supports PWM dimming and analog dimming for flexible dimming applications.

The MP3370 is available in the thermally enhanced SOIC8-EP package with exposed pad.

Product Features

  • Input Range of 3.5V to 36V
  • More than 3A Peak Current Limit
  • Internal 100mΩ 50V Power Switch
  • Analog/PWM Dimming
  • High Efficiency
  • Under-Voltage Lockout Protection
  • LED Open/Short Protection
  • Inductor/Diode Short Protection
  • 43.5V Over-Voltage Protection
  • Soft-Start Operation
  • Thermal Shutdown
  • SOIC8-EP Package


  • Isw Limit (A)3
  • Ishutdown (µA)0.5
  • Vin (min) (V)3.5
  • Vin (max) (V)36
  • Channels1
  • fsw (min) (kHz)350
  • Ichannel (max) (A)0.9
  • LEDx ABS Voltage (V)50
  • fsw (max) (kHz)450
  • Vout (max) (V)38
  • GradeCatalog
  • Rds(on) (mΩ)100
  • PackageSOIC-8E
  • Power MOSFETIntegrated
  • TopologyBoost
  • Dimming (Output)P-Dim, A-Dim
  • Iq (mA)3
  • Typical LCD Screen SizesSmall (<10"), Medium (10"-29")