LP3307
LP3307 is Constant Current Switching Regulator manufactured by Lowpowersemi.
Description
The LP3307 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 250m V, which reduces the power dissipation in the current setting resistor.
The LP3307 implements a constant frequency 1MHz PWM control scheme. Optimized operation frequency can meet the requirement of small LC filters value .Highly integration and internal pensation network minimizes as 5 external ponent counts.to provide the best solution for PCB space saving and total BOM cost. SOT23-6 packages.
Order Information
- -
- F: Pb-Free
Package Type B6:SOT23-6
Marking Information
Device
Marking
LP3307B6F
Package SOT23-6
Shipping 3K/REEL
Features
- High Efficiency: 93%
- 1.1MHz Fixed-Frequency PWM Operation
- Maximum Output Voltage up to 29V
- Operating Range : 2.2V to 6V
- Shutdown Supply Current:<1u A
- Available in SOT23-6 Package
- Built-in Over Voltage Protection
- Minimize the External ponent
- Ro HS pliant and 100% Lead Pb-Free
Applications
- WLED Backlight driver
- OLED Backlight driver
- PDA
- DSC
- Camera Flash WLED driver
Typical Application Circuit
Vin
+ 10u F
242.7uu HH
6 Vin
OUT 5
+ 2.2u F
4 EN
FB...