National Semiconductor LM3590MFX/NOPB Constant Current: Yes Current - Output / Channel: 20mA Efficiency: - Frequency: - Internal Driver: Yes Internal Switch(s): Yes Mounting Type: Surface Mount Number Of Outputs: 1 Operating Temperature: -40?°C ~ 85?°C Package / Case: SOT-23-5, SC-74A, SOT-25 Series: PowerWise?® Topology: PWM Type: Linear (Non-Switching) Type - Primary: Backlight Type - Secondary: White LED Voltage - Output: - Voltage - Supply: 6 V ~ 12.6 V Other Names: LM3590MFX