AS2850

AS2850 5A Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response FEATURES • Adjustable Output Down To 1.2V • Fixed Output Voltages 1.5V, 2.5V, 3.3V & 5.0V • Output Current Of 5A • Low Dropout Voltage 1.1V Typ @ 5A. • Extremely Tight Load And Line Regulation • Current & Thermal Limiting • Standard 3-Terminal Low Cost TO-220 & TO-263 • Similar To Industry Standard LT1085/LT1585 APPLICATIONS • Powering VGA & Sound Card • Power PCSupplies • SMPS Post-Regulator • High Efficiency “Green” Computer Systems • High Efficiency Linear Power Supplies • Portable Instrumentation • Constant Current Regulators • Adjustable Power Supplies • Battery charger PRODUCT DESCRIPTION The AS2850 are low power 5A adjustable and fixed voltage regulators that are very easy to use. It requires only 2 external resistors to set the output voltage for adjustable version. The AS2850 are designed for low voltage applications that offers lower dropout voltage and faster transient response. This device is an excellent choice for use in powering low voltage microprocessor that require a lower dropout, faster transient response to regulate from +2.5V to 3.8V supplies and as a post regulator for switching supplies applications. The AS2850 features low dropout of a maximum 1.2 volts. The AS2850 offers full protection against over-current faults, reversed input polarity, reversed load insertion, and positive and negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. The IQ of this device flows into the load, which increases efficiency. The AS2850 are offered in a 3-pin TO-220 and TO-263 package compatible with other 3 terminal regulators. For a 8A low dropout regulator refer to the AS2880 data sheet. ORDERING INFORMATION TO-220 3-PIN AS2850YU-X DD PLASTIC 3-PIN AS2850YT-X PIN CONNECTIONS X= Output Voltage (i.e. 1.5 for 1.5V, 2.5 for 2.5V etc.) Y= Output Tolerance, A for 1% Blank for 2% Consult factory for other fixed voltages. TO-263-3 (T) 3 VIN VOUT ADJ/GND Front View TO-220-3 (U) 3 VIN VOUT ADJ/GND AS2850 2 1 AS2580 2 1 Top View Rev. 10/11/00 AS2850 ABSOLUTE MAXIMUM RATINGS Lead Temp. (Soldering, 10 Seconds) .............................. 300°C Storage Temperature Range ............................ -65° to +150°C Operating Junction Temperature Range AS2850 Control Section ............................ -45°C +125°C AS2850 Power Transistor...........................-45°C +150°C Input Voltage........................................................ 10V Input to Output Voltage Differential .................... 10V ELECTRICAL CHARACTERISTICS (NOTE 1) at IOUT = 10mA, TA=25°C, unless otherwise specified. PARAMETER 1.5V Version Output Voltage (Note 2) AS2850-1.5V, 0 < IOUT < 5A, 3.3V