LM3528 Description
The LM3528 current mode boost converter offers two separate outputs. The first output (MAIN) is a constant current sink for driving series white LED’s. The second output (SUB/FB) is configurable as a constant current sink for series white LED bias, or as a feedback pin to set a constant output voltage for powering OLED panels.
LM3528 Key Features
- 2 128 Exponential Dimming Steps
- Programmable Auto-Dimming Function
- Up to 90% Efficient
- Low Profile 12 Bump DSBGA Package (1.2mm
- Integrated OLED Display Power Supply and
- Drives up to 12 LED’s at 20mA
- Drives up to 5 LED’s at 20mA and delivers 18V
- 1% Accurate Current Matching Between
- Internal Soft-Start Limits Inrush Current
- True Shutdown Isolation for LED’s
LM3528 Applications
- Dual Display LCD Backlighting for Portable Applications