RTQ4554-QT
Overview
The RTQ4554-QT is a 4-channel LED driver capable of delivering 170mA for each channel with a DC-DC controller. The current-mode switching DC-DC controller supports boost or SEPIC topologies and operates in the 300kHz to 2.2MHz frequency range.
- Wide Operating Input Voltage: 5V to 40V
- Support Cold Crank Down to 3V Supply After Start-Up
- High Output Voltage: Up to 45V
- NMOS or PMOS Input Protection Switch
- Integrated Boost and SEPIC Controller for LED Driver
- Switching Frequency: 300kHz to 2.2MHz
- Spread Spectrum for Reduced EMI
- Automatic Output Voltage Discharged When Controller Is Disabled
- 4-Channel Current Sinks with 30mA to 170mA per Channel
- Channel Current Regulation w
