Linear Technology LT1521IS8#TR Current - Limit (min): 320mA Current - Output: 300mA Mounting Type: Surface Mount Number Of Regulators: 1 Operating Temperature: -40?°C ~ 125?°C Package / Case: 8-SOIC (3.9mm Width) Regulator Topology: Positive Adjustable Series: - Voltage - Dropout (typical): 0.5V @ 300mA Voltage - Input: 4.3 ~ 20 V Voltage - Output: 3.8 ~ 20 V