Description

The LT3599IUH is a fixed frequency 2A step-up DC/DC converter designed specifically for driving four strings of 120mA LEDs with an output voltage up to 44V. It offers programmable switching frequencies ranging from 200kHz to 2.1MHz through an external resistor.

Specifications and features

- True Color PWMTM Dimming Ratio Up to 3000:1
- Drives Four Strings of LEDs at Up to 120mA
- ±1.5% Accurate LED Current Matching
- Wide Input Voltage Range: 3.1V to 30V
- Regulates LED Current Even When VIN > VOUT
- Disconnects LEDs in Shutdown
- Programmable Maximum VOUT (Regulated)
- Open/Short LED Protection and Fault Flags
- Programmable LED Current Derating
- Adjustable Frequency: 200kHz to 2.1MHz
- Synchronizable to an External Clock
- Analog Dimming Up to 20:1
- Programmable Input UVLO with Hysteresis
- Thermally Enhanced 32-Pin (5mm × 5mm) QFN and 28-Pin TSSOP Packages

Application Scenarios

- Automotive Navigation TFT LCD Displays
- Desktop and Notebook TFT LCD Displays

Comparison

No specific advantages or disadvantages have been mentioned for this model.