AS2810

www.DataSheet4U.com AS2810 1A Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response FEATURES • Adjustable Output Down To 1.2V • Fixed Output Voltages 1.5V, 2.5V, 3.0V, 3.3V, 5.0V • Output Current Of 1A • Low Dropout Voltage 1.2V Typ. • Extremely Tight Load And Line Regulation • Current & Thermal Limiting • Standard 3-Terminal Low Cost TO-220, TO-263, TO-252 & SOT-223 APPLICATIONS • SCSI-II Active Terminator • Portable Palmtap/Notebook Computer • SMPS Post-Regulator • Disk Drives • Portable Consumer Equipment • Portable Instrumentation • Battery charger PRODUCT DESCRIPTION The AS2810 is a low power positive voltage regulator designed to meet 1A output current and comply with SCSI-II specifications with fix output voltage of 2.85V. This device is an excellent choice for use in battery-powered applications and portable computers. The AS2810 features very low quiescent current and very low dropout voltage of 1.2V at a full load and lower as output current decreases. This product is available as adjustable or fixed 1.5V, 2.5V, 3.0V, 3.3V, and 5V output voltages. The AS2810 is offered in a 3-pin surface mount packages SOT-223, TO-220, TO-252 & DD package. The output capacitor of 10µF or larger is needed for the output stability of AS2810 as required by most other regulator circuits ORDERING INFORMATION TO-220 3-PIN AS2810YU-X DD PLASTIC 3-PIN AS2810YT-X SOT-223 3-PIN AS2810YM3-X TO-252 3-PIN AS2810YR-X OPEPERATING JUNCTION TEMP. RANGE -45 to +125°C X= Output Voltage (1.5V, 2.5V, 3.0V, 3.3V, 5.0V and Blank for Adj.) Y= Output Tolerance, A for 1% Blank for 2% Consult with factory for other fixed voltages. PIN CONNECTIONS SOT-223 (M3) TO-263-3 (T) TO-220-3 (U) TO-252 (R) AS2810 1 2 3 AS2810 1 2 3 AS2810 1 2 3 AS2810 1 2 3 ADJ/ GND VOUT VIN Top View ADJ/GND VOUT VIN ADJ/GND VOUT VIN Front View ADJ/GND VOUT VIN Top View Front View Rev. 10/2/00 www.DataSheet4U.com AS2810 ABSOLUTE MAXIMUM RATINGS Lead Temp. (Soldering, 10 Seconds) .............................. 300°C Storage Temperature Range ............................ -65° to +150°C Operating Junction Temperature Range ...................... AS2810 Control Section ............................ -45°C +125°C AS2810 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) 2.5V Version Output Voltage (Note 2) 2.85V Version Output Voltage (Note 2) 3.0V Version Output Voltage (Note 2) 3.3V Version Output Voltage (Note 2) 5.0V Version Output Voltage (Note 2) All Voltage Options Reference Voltage (VREF) Min. Load Current (Note 3) Line Regulation (∆VREF(Vin)) Load Regulation(∆VREF(IOUT)) VIN≤ 7V, P≤ Pmax 1.5V≤ (VIN -VOUT)≤5.75V, 10mA≤IOUT≤1A 1.5V≤ (VIN –VOUT)≤5.75V 2.75V≤VIN ≤7V, IOUT=10mA, TJ=25ºC (Note 3) VIN≤7V, IOUT=0mA, TJ=25ºC (Note 2) 10mA≤IOUT ≤1A, (VIN-VOUT)=3V, TJ=25ºC (Note 3) 0≤IOUT ≤1A, VIN=7V, TJ=25ºC (Note 2) ∆VREF=1% IOUT = 1A (Note 3) IOUT ≤ 1A (Note 2) VIN=7V 1.4V ≤ (VIN- VOUT) (Note3) 1.250 5 0.005 0.005 0.05 0.05 1.1 2 1.2 1.225 1.263 1.270 1.225 10 0.2 0.2 0.3 0.3 1.2 1.2 1.225 1.212 1.270 1.288 10 0.2 0.2 0.3 0.3 1.2 A % V mA % AS2810-5.0V, 0 ≤ IOUT ≤ 1A, 6.5V≤VIN≤12V 5 4.950 4.900 5.050 5.100 4.9 4.65 5.1 5.15 V AS2810-3.3V, 0 ≤ IOUT ≤ 1A, 4.8V≤VIN≤10V 3.3 3.267 3.234 3.333 3.366 3.234 3.069 3.366 3.399 V AS2810-3.0V, 0 ≤ IOUT ≤ 1A, 4.5V≤VIN≤10V 3 2.970 2.940 3.030 3.060 2.94 2.79 3.06 3.09 V AS2810-2.85V, 0 ≤ IOUT ≤ 1A, 4.5V≤VIN≤10V 2.85 2.822 2.793 2.879 2.907 2.793 2.650 2.907 2.936 V CONDITIONS Typ AS2810A Min AS2810-1.5V, 0 < IOUT < 1A, 3.3V