Specification for download
LP3390-LED Driver
2.5-5.5Input Voltage(V):
Vbais,B.L.DriverDrive LED No(pcs):
1400Switchched Current(mA):
1.1MSwitchched Frequency (Hz):
200Feedback Vo(mV):
OVP,SS,OTP,Constant Current,Low SizeSpecial Features:

High Performance, Constant Current Switching
for White LED and Boost Convertor

General Description

The LP3390 is a high frequency, asynchronous boost converter for constant current white LED driver applications. The internal MOSFET can support up to 8 White LEDs for backlighting and OLED power application,and the internal soft start function can reduce the inrush current. The LED current is initially set with the external sense resistor. To improve efficiency, the feedback voltage is set to 200mV, which reduces the power dissipation in the current setting resistor. The LP3390 implements a constant frequency 1.2MHz PWM control scheme. Optimized operation frequency can meet the requirement of small LC filters value .Highly integration and internal compensation network minimizes as component provide the best solution for PCB space saving and total BOM cost. DFN-10 3*3mm packages.


 WLED Backlight driver
 Panel Bias Voltage supply



 High Efficiency: 95%
 1.2MHzFixed-Frequency PWM Operation
 Maximum Output Voltage up to 30V
 Operating Range : 2.5V to 5.5V
 Shutdown Supply Current:<1uA
 Minimize the External Component.
 RoHS Compliant and 100% Lead (Pb)-Free


Marking Information

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