4.5V-28Vin 4-Channel WLED Boost Controller Lower Vin of MP3398A for USB Powered Application | 4-String Max 350mA/String WLED Driver4.5V to 28V Input Voltage Range2.5% Current Matching Accuracy Between StringsProgrammable Switching FrequencyPWM and Analog Dimming ModeCascading Capability with a Single Power SourceLED Open and Short LED ProtectionProgrammable Over-Voltage ProtectionRecoverable Thermal Shutdown ProtectionOver Current ProtectionInductor/Diode short ProtectionUnder-Voltage LockoutSOIC16 Package