UR3318

www.DataSheet4U.com UTC UR3318 LINEAR INTEGRATED CIRCUIT 2 CHANNEL LOW-DROPOUT VOLTAGE REGULATOR FEATURES *Dual Output: 3.3V/1A, 1.8V/1A. *Output Voltage Precision of ±2%. *Output consists of PNP power transistor with low-dropout voltage. *Built-in over current protection circuit (OCP). *Built-in Thermal Shut Down Circuit (TSD). *Ideal for Hard Disk Drives applications. 1 TO-252-5 1 TO-263-5 1: Vcc 2: NC 3: GND 4: Vo1 5: VO2 *Pb-free plating product number: UR3318L PIN DISCRIPTION PIN NO. 1 2 3 4 5 PIN NAME Vcc N.C. GND Vo1 Vo2 Power Supply Not internally connected Ground 3.3V Output 1.8V Output FUNCTION UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R102-018,C UTC UR3318 BLOCK DIAGRAM Vcc PIN 1 LINEAR INTEGRATED CIRCUIT Vcc Reference Voltage + - Vcc Vo1 Current Limit Sat. Prevention PIN 4 Vcc Vcc + Vo2 Thermal Shut Down Current Limit Sat. Prevention PIN 5 NC PIN 2 PIN 3 GND UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R102-018,C UTC UR3318 PARAMETER LINEAR INTEGRATED CIRCUIT SYMBOL RATINGS 18 1000* -40 ~ +85 -55 ~ +150 150 ABSOLUTE MAXIMUM RATINGS (Ta=25℃) UNIT V mW °C °C °C Supply Voltage Vcc Power dissipation PD Operating temperature range Topr Storage temperature range Tstg Junction temperature Tj * PD derated at 8mW/℃ for temperatures above Ta=25℃ OPERATING RATINGS(Ta=25℃) PARAMETER Input Voltage 3.3V Output current 1.8V Output current SYMBOL Vcc Io1 Io2 MIN 3.0 MAX 16.0 1 1 UNIT V A A ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Ta=25...