The is a low dropout three terminal regulator with 3A output current capability. The output voltage is adjustable with the use of a resistor divider or fixed 1.5V, 1.8V, and 3.3V. Dropout is guaranteed at a maximum 1.4V at maximum output current. Its low dropout voltage and fast transient response make it ideal for low voltage microprocessor applications. Internal current and thermal limiting provides protection against any overload condition that would create excessive junction temperatures.
Dropout Voltage at 3A Output Current. Fast Transient Response. Extremely Tight Line and Load Regulation. Internal Thermal and Current Limiting. Adjustable Output Voltage or Fixed 1.8V, 3.3V. Standard 3-Pin Power Packages.
Mother Board I/O Power Supplies. Microprocessor Power Supplies. High Current Regulator. Post Regulator for Switching Supply.
VR E F=VOUT - VADJ =1.25V (typ.) VOUT =VREF x (1+RF2/RF1)+ IADJ x RF2 IADJ =55µA (typ.)
(1) C1 needed if device is far away from filter capacitors. (2) C2 required for stability.
4F, 9 Industry E. 9th Road, Science-based IndustrialPark , Hsinchu, Taiwan, R.O.C.
TEMPERATURE RANGE C: 0°C~70°C OUTPUT VOLTAGE DEFAULT: ADJ. 33: 3.3V
Vin pin to ADJ/ GND pin.............................................................................. 7V Operating Junction Temperature Range
Storage Temperature Range........................................................ 150° C Thermal Resistance Junction to Case 6°C /W Thermal Resistance Junction to Ambient TO-252......................... 100° C/W (Assume no ambient airflow, no heatsink) 50°C /W Lead Temperature (Soldering) 10 sec......................................................260°C
Current Limit Adjusted Pin Current (IADJ) Adjusted Pin Current Change (IADJ) Temperature Stability Minimum Load Current RMS Output Noise of VOUT)
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