LP3390 Datasheet | Lowpowersemi

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 200m V, 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 pensation network minimizes as ponent counts.to provide the best solution for PCB space saving and total BOM cost. DFN-10 3- 3mm packages. Order Information - - - F: Pb-Free Package Type QV:TDFN-10 Marking information Device Marking Package Shipping LP3390QVF LPS QV:SQVF 3K/reel LP3390 xxxx Y:Production year W:Production period X:Production batch Features - High Efficiency: 95% - 1.2MHz Fixed-Frequency PWM Operation - Maximum Output Voltage up to 30V - Operating Range : 2.5V to 5.5V - Shutdown Supply Current:<1u A - Minimize the External ponent. - Ro HS pliant and 100% Lead (Pb)-Free Applications - WLED Backlight driver - Panel Bias Voltage supply Typical Application Circuit VIN2 VDD2 4.7μH SW2 VDD1 SW1 AVDD R1 FB2 R2 OVP1 VIN1 4.7μH ON...