Semtech Corporation SC4538ULTRT Constant Current: Yes Current - Output / Channel: 30mA Efficiency: - Frequency: 680kHz ~ 920kHz Internal Driver: Yes Internal Switch(s): Yes Mounting Type: Surface Mount Number Of Outputs: 1 Operating Temperature: -40?°C ~ 85?°C Package / Case: MLPD-8 Series: - Topology: PWM, Step-Up (Boost) Type: Backlight, White LED Type - Primary: Backlight Voltage - Output: 5 V ~ 38 V Voltage - Supply: 2.8 V ~ 5.5 V Other Names: SC4538ULTR