Lowpowersemi LP3380
The LP3380 is a 1MHz PWM boost switching regulator designed for constant-current white LED driver applications. The LP3380 can drive a string of up to 8 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The LP3380 implements a constant frequency 1MHz PWM control scheme.| Part No. | LP3380 |
|---|---|
| Datasheet | LP3380 Download |
| Manufacturer | Lowpowersemi |
| Description | Constant Current Switching Regulator |
| Buy | Stock & Price |
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 200 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. Order Information LP3380 □ □ □ F: Pb-Free Package Type B6: SOT23-6APPLICATIONS
● WLED Backlight driver● OLED Backlight driver
● PDA
● MID/PTV
FEATURES
● High Efficiency: 92%● 1MHzFixed-Frequency PWM Operation
● Maximum Output Voltage up to 29V
● Operating Range : 2.2V 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 Typical Application Circuit Vin Cin 10uF 4.7uH 1 LX 6 Vin OVP 5 Cout 2.2uF...
