MP3370GN-Z

MP3370GN-Z is a fixed-frequency boost converter with a 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 100mohm/50V low-side MOSFET. The peak current-mode regulation and external compensation components allow the device 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. It supports PWM dimming and analog dimming for flexible dimming applications. The application includes middle size LCD backlighting, and general lighting.

• Input voltage range from 3.5V to 36V, 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, VIN shutdown supply current is 1μA maximum at (VEN <lt/>0.3V)
• VIN operating supply current is 3mA typical at (VIN = 12V, VEN = 2V, TA = 25°C)
• SW switching frequency is 400KHz typical at (VIN = 12V, VEN = 2V, TA = 25°C)
• SW on resistance is 100mohm typical at (VIN = 12V, VEN = 2V, TA = 25°C)
• SW leakage current is 65μA typical at (VIN = 12V, VEN = 2V, TA = 25°C)
• LED current is 300mA typical at (RISET = 24.9Kohm, Tj = 25°C)
• Operating junction temperature range from -40°C to +125°C, SOIC8-EP package

Notes

MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.