AP78LXX 0.15A Low Dropout Positive Regulator (Preliminary) Features General Description Output voltage tolerances of + 3% over temperature range. * Fast transient response * Output current of 150mA. * Built-in thermal shutdown * Packages: TO-92. * Good noise rejection * 3-Terminal Fixed output voltage: 1.5V, 1.8V, 2.5V, 3.3V, 5.0V AP78LXX is a low dropout positive fixed-mode regulator with minimum of 0.15A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 3.3V logic supply. AP78LXX is also well suited for other applications such as VGA cards. * Applications * * PC peripheral Communication Ordering Information AP 78LXX X X Vout Package 15 : 1.5V 18 : 1.8V 25 : 2.5V 33 : 3.3V 05 : 5.0V Packing Z :TO-92L Typical Circuit Blank : Tube or bulk A : Taping Connection Diagram 8V/5V output regulator AP78L05 Vin 8V Vout GND Vout GND Vin 5.0V/ 150mA C2 10uF C1 10uF Buttom View Pin Descriptions NAME GND I/O I PIN # 2 Vout O 1 Vin I 3 FUNCTION Ground. The output of the regulator. A minimum of 10uF capacitor must be connected from this pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor is connected from this pin to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load transient response. This pin must always be 1.3V higher than Vout in order for the device to regulate properly. This datasheet contains new product information. Analog Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 00. May.07, 2003 1/4 AP78LXX 0.15A Low Dropout Positive Regulator (Preliminary) Absolute Maximum Ratings Symbol Parameter Rating Unit V VIN DC Supply Voltage -0.3 to 18 V PD Power Dissipation Internally Limited TST Storage Temperature TOP Operating Junction Temperature Range -65 to +150 o 0 to +150 o C C Electrical Characteristics (Under Operating Conditions) PARAMETER CONDITIONS MIN TYP MAX UNIT AP78L15 o IOUT = 10mA, TJ = 25 C, 3VVIN12V 1.455 1.500 1.545 V AP78L18 o IOUT = 10mA, TJ = 25 C, 3.3VVIN12V 1.746 1.800 1.854 V AP78L25 o IOUT = 10mA, TJ = 25 C, 4VVIN12V 2.425 2.500 2.575 V AP78L33 o IOUT = 10mA, TJ = 25 C, 4.8VVIN12V 3.200 3.300 3.4 V AP78L05 o IOUT = 10mA, TJ = 25 C, 6.5VVIN12V 4.850 5.000 5.150 V Line Regulation AP78LXX IO=10mA,VOUT+1.5V<VIN<18V, TJ=25oC 0.2 % Load Regulation AP78LXX VIN=VOUT+2V,0mA<Io<0.15A, TJ=25oC 1 % Dropout Voltage (VIN-VOUT) AP78LXX IOUT = 0.15A ,VOUT=1%VOUT 1.3 V Minimum Load Current AP78LXX 0oCTj125oC 5 10 mA Thermal Regulation TA=25, 30ms pulse 0.008 0.04 %/W Ripple Rejection F=120Hz,COUT=25uF Tantalum, IOUT=0.15A AP78LXX VIN=VOUT+3V 60 70 dB Temperature Stability IO=10mA 0.5 JA TO-92 Thermal Resistance Junction-to-Ambient(No heat sink ;No air flow) TO-92 : Control Circuitry/Power Transistor Thermal ResistanceJunction-to-Case Output Voltage JC % 230 O C/W 60 O C/W Note1: Quiescent current is defined as the minimum output current required to maintain regulation. At 12V input/output differential the device is guaranteed to regulate if the output current is greater than 10mA. Rev. 00 2/4 MAy.07, 2003 AP78LXX 0.15A Low Dropout Positive Regulator (Preliminary) Typical Performance Characteristics 0.20 1.4 Output Voltage Deviation (%) 1.3 1.2 Dropout Voltage (V) 1.1 1.0 0 I load=150mA -0.20 Tj = 25 oC 0.9 -0.40 0. 8 Tj = 125 oC 0. 7 -0.80 0. 6 0. 5 0 0 60 30 90 Output Current (mA) 120 -1 150 -25 Dropout Voltage vs Output Current 0 25 50 Temperature (oC) 75 100 125 Load Regulation vs Temperature 2 1 0.8 1 Output Voltage Deviation (%) Output Voltage Change (%) 1.5 0. 5 0 -0.5 -1 -1.5 -2 -50 -25 0 25 50 Temperature (oC) 75 100 125 150 0.6 0.4 0.2 0 2 4 7.5 Cin=1uF Cout=10uF Tantalum 6.5 5.5 40 20 0 -20 -40 0 20 40 60 80 100 120 140 160 180 200 TIME (us) Line Transient Response 8 10 12 Line Regulation Load Current (A) Output Voltage Deviation (mV) Output Voltage Deviation (mV) Input Voltage (V) Percent Change in Output Voltage vs Temperature 6 Input Voltage (V) 15 C in = 1uF C out = 10 uF Tantalum Preload = 100mA 10 5 0 -5 -10 0.2 0.1 0 -1 0 10 20 30 40 50 TIME (us) 60 70 80 90 100 Load Transient Response Rev. 00 3/4 MAy.07, 2003 AP78LXX 0.15A Low Dropout Positive Regulator (Preliminary) Marking Information ( Top view ) Logo VOUT grade AC 78L XX YY WW ~ 15 =1.5V 18 =1.8V 25 =2.5V 33 =3.3V 05 =5.0V: Date code Internal code YY : Year WW: Nth week Package Dimension TO92-3L Package Outline Dimension A1 A b1 D b b e E SYMBLOS A A1 b b1 D E L e L DIMENSIONS IN MILLMETER MIN NOM MAX 3.302 3.556 3.810 1.016 ------------------0.330 0.381 0.432 0.406 0.457 0.506 4.445 4.572 4.699 4.445 4.572 4.699 13.00 ---------15.50 1.150 ---------1.390 DIMENSIONS IN INCHES MIN NOM MAX 0.130 0.140 0.150 0.040 ------------------0.013 0.015 0.017 0.016 0.018 0.020 0.175 0.180 0.185 0.175 0.180 0.185 0.512 ---------0.610 0.045 ---------0.055 Rev. 00 4/4 MAy.07, 2003