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LP3382S Datasheet PDF

Lowpowersemi LP3382S

The LP3382S is a 1.2MHz PWM boost switching regulator designed for constant- current white LED driver applications. The LP3382S can drive a string of up to 8 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The LP3382S implements a constant frequency 1.2MHz PWM control scheme.
Part No. LP3382S
Datasheet LP3382S Download
Manufacturer Lowpowersemi
Description Constant Current Switching Regulator
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LP3382S datasheet page 1 preview

GENERAL DESCRIPTION

The high frequency PWM operation also saves board space by reducing external component sizes. To improve efficiency, the feedback voltage is set to 250 mV, which reduces the power dissipation in the current setting resistor. Highly integration and internal compensation network minimizes as 5 external component counts. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency. Ordering Information LP3382S F: Pb-Free Package: B6: SOT23-6

FEATURES

High Efficiency: 92% 1.2MHzFixed-Frequency PWM Operation Maximum Output Voltage up to 29V Operating Range : 2.7V to 5.5V Shutdown Supply Current:<1uA Available in SOT23-6 Package Built-in 29V Over Voltage Protection Minimize the External Component RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONS

WLED Backlight driver OLED Backlight driver PDA MID/PTV Typical Application Circuit Vin Cin 10uF 4.7uH Cout 2.2uF LX 1 6 Vin OVP 5 2 GND 4 EN FB 3 LP3382S Panel...
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