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| AP1122 1A Low Dropout Positive Regulator Features - 1.3V maximum dropout at full load current - Fixed 1.2V+ 2% output voltage - Fast transient response - Output current limiting - Built-in thermal shutdown - Good noise rejection - Pb-Free Packages: SOT223, TO263, TO252, TO220, SOT89 General Description AP1122 is a low dropout positive fixed-mode regulator with minimum of 1A 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 1.2V logic supply. AP1122 is also well suited for other applications such as VGA cards. AP1122 is guaranteed to have lower than 1.3V dropout at full load current making it ideal to provide well-regulated outputs of 1.2 output voltage with 2.5V input voltage supply. Applications - PC peripheral - Communication Ordering Information AP 1122 X X Low Dropout Regulator Package E : SOT223-3L K : TO263-3L D : TO252-3L T : TO220-3L Y : SOT89-3L Packing Blank : Tube A : Taping Typical Circuit 2.5V C1 100uF Vin Vout GND Tab is Vout C2 100uF 1.2V/1A This datasheet contains new product information. Anachip Corp. 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.1.0 Oct 21, 2004 1/10 AP1122 1A Low Dropout Positive Regulator Connection Diagram 3 PIN SOT223 ( Top View ) 3 2 1 Tab is Vout Vin Vout GND 1 Tab is Vout 3 PIN SOT89 3 PIN TO220 GND 3 PIN TO252 / TO263 ( Top View ) 3 2 Vin Vout 3 2 1 Tab is Vout Vin Vout GND 3 2 1 Tab is Vout Vin Vout GND Block Diagram Vin 3 2 Vout + + CURRENT LIMIT 1.2V + + Thermal Shutdown 1 GND Anachip Corp. www.anachip.com.tw 2/10 Rev.1.0 Oct 21, 2004 AP1122 1A Low Dropout Positive Regulator Pin Descriptions NAME GND Vout I/O I O PIN # 1 2 FUNCTION Ground Pin The output of the regulator. A minimum of 10uF capacitor (0.15 ESR 20) must be connected from this pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor (0.15 ESR 20) 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. Vin I 3 Absolute Maximum Ratings Symbol Vin PD TST TOP Parameter DC Supply Voltage Power Dissipation Storage Temperature Operating Junction Temperature Range Rating Unit -0.3 to 12 V Internally Limited o -65 to +150 C o 0 to +150 C Electrical Characteristics (Under Operating Conditions) PARAMETER Output Voltage Line Regulation Load Regulation Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current Thermal Regulation CONDITIONS 2.5VVIN12V, TJ=25oC o IO=10mA, 2.5V MIN 1.176 TYP 1.2 MAX 1.224 0.2 1 UNIT V % % V A 1.3 1. 1 5 0.008 60 0.5 300 117 92 85 100 15 0.65/2.7 10 0.65/2.7 1.4 10 0.04 70 mA %/W dB % o TA=25 C, 30ms pulse F=120Hz,COUT=25uF Tantalum, IOUT=1A, Ripple Rejection VIN=VOUT+3V Temperature Stability IO=10mA JA Thermal SOT89 Resistance Junction- SOT-223 TO-252 to-Ambient (No heat TO-220/263 sink ;No air flow) SOT89 : Control Circuitry/Power Transistor JC Thermal SOT-223 : Control Circuitry/Power Transistor TO-263 : Control Circuitry/Power Transistor Resistance TO-252 : Control Circuitry/Power Transistor Junction-to-Case TO-220 : Control Circuitry/Power Transistor C/W o C/W Note1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead = 1/18" from the package. Note2: Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the difference between input and output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. Note3: Quiescent current is defined as the minimum output current required in maintaining regulation. At 12V input/output differential the device is guaranteed to regulate if the output current is greater than 10mA. Anachip Corp. www.anachip.com.tw 3/10 Rev.1.0 Oct 21, 2004 AP1122 1A Low Dropout Positive Regulator Typical Performance Characteristics 2. 0 1. 8 0.20 Output Voltage Deviation (%) 1. 6 0 I load=800mA Dropout Voltage (V) 1. 4 1. 2 1. 0 0. 8 0. 6 0. 4 0. 2 0 0 Tj = 125 oC Tj = 25 oC -0.20 -0.40 -0.80 Dropout Voltage vs Output Current 2 1.5 1 Output Current (mA) 250 500 750 1000 -1 -25 0 Load Regulation vs Temperature Temperature (oC) 25 50 75 100 125 Output Voltage Change (%) 1 0. 5 0 -0.5 -1 -1.5 -2 -50 -25 0 25 50 75 100 125 150 0.8 Output Voltage Deviation (%) 0.6 0.4 0.2 0 Percent Change in Output Voltage vs Temperature Output Voltage Deviation (mV) Input Voltage (V) Load Current (A) Output Voltage Deviation (mV) 7.5 6.5 5.5 40 20 0 -20 -40 Cin=1uF Cout=10uF Tantalum 30 20 10 0 -10 -20 2 1 0 -1 0 10 20 Temperature (oC) 2 4 Line Regulation C in = 1uF C out = 10 uF Tantalum Preload = 100mA Input Voltage (V) 6 8 10 12 0 20 40 60 TIME (us) 80 100 120 140 160 180 200 30 Line Transient Response Load Transient Response TIME (us) 40 50 60 70 80 90 100 Anachip Corp. www.anachip.com.tw 4/10 Rev.1.0 Oct 21, 2004 AP1122 1A Low Dropout Positive Regulator Marking Information (1) SOT223-3L (2) TO252-3L (Top view) (Top view) Logo Logo XXX 1122 ID Code Month: A~L = 01~12 Year: "1" = 2001 "2" = 2002 ~ 1122 XXXX X ID Code Xth Week: 01~52 Year: "01" = 2001 "02" = 2002 ~ (3) TO220-3L (4) SOT89-3L ( Top view ) Date Code Month: A~L Year: 0~9 XX XX 1 2 3 Identification Code ( See the table ) Logo 1122 XX XX X Identification code ID code Xth week: 01~52 Year: "01" = 2001 "02" = 2002 Output version AP1122 JB ~ (5) TO263-3L ( Top view ) Logo 1122 XX XX X ID code Xth week: 01~52 Year: "01" = 2001 "02" = 2002 ~ Anachip Corp. www.anachip.com.tw 5/10 Rev.1.0 Oct 21, 2004 AP1122 1A Low Dropout Positive Regulator Package Dimension (1) SOT223 D B1 1.6 3.7 H E K e1 e 1.2 1.6 2.3 Land Pattern Recommendation (Unit: mm) 6.4 A1 B L Seating Plane Symbol A A1 B B1 c D E e e1 H L K Dimensions In Millimeters Min. 1.50 0.02 0.60 2.80 0.28 6.30 3.30 Nom. 1.65 0.05 0.70 0.30 6.50 3.50 2.3 Basic 4.6 Basic 6.70 0.91 1.50 0 7.00 1.00 1.75 5o 13 o Dimensions In Inches Min. 0.059 0.001 0.024 0.110 0.011 0.248 0.130 Nom. 0.065 0.002 0.028 0.012 0.256 0.138 0.091 Basic 0.181 Basic Max. 0.071 0.003 0.031 0.134 0.013 0.264 0.146 Max. 1.80 0.08 0.80 3.40 0.32 6.70 3.70 7.30 1.10 2.00 10 - 0.264 0.036 0.059 0 - 0.276 0.039 0.069 5o 13 o 0.287 0.043 0.079 10 - Anachip Corp. www.anachip.com.tw 6/10 c Rev.1.0 Oct 21, 2004 A AP1122 1A Low Dropout Positive Regulator (2) TO263 10.9 L2 E D 9.1 L L3 1.3 e b b2 2.54 Land Pattern Recommendation (Unit: mm) C 3 L1 Symbol A b b2 C C2 D E e L L1 L2 L3 Dimensions In Millimeters Min. Nom. Max. 4.06 4.45 4.83 0.51 0.75 0.99 1.14 1.27 1.40 0.38 TYP. 1.14 1.27 1.40 8.65 9.15 9.65 9.65 9.97 10.29 2.54 BSC. 14.61 15.24 15.88 2.28 2.54 2.80 1.30 2.92 1.27 1.52 1.78 Dimensions In Inches Min. Nom. Max. 0.160 0.175 0.190 0.020 0.030 0.039 0.045 0.050 0.055 0.015 TYP. 0.045 0.050 0.055 0.341 0.380 0.575 0.090 0.050 0.360 0.393 0.100 BSC. 0.600 0.100 0.051 0.060 0.380 0.405 0.625 0.110 0.115 0.070 Anachip Corp. www.anachip.com.tw 7/10 C2 Rev.1.0 Oct 21, 2004 A 15.7 AP1122 1A Low Dropout Positive Regulator (3) TO252 5.6 E b2 L2 5.6 11.0 2.25 2.0 7.2 1.2 H SEE NOTE2 C1 L SEATING PLANE L1 D b e1 e Land Pattern Recommendation (Unit: mm) A1 C Notes: 1. 2. JEDEC Outline: TO-252 AB Mils suggested for positive contact at mounting. Symbol A A1 b b2 C C1 D E e e1 H L L1 L2 Dimensions In Millimeters Min. Nom. Max. 2.18 2.29 2.39 1.02 1.15 1.27 0.61 TYP. 5.20 5.35 5.50 0.46 0.52 0.58 0.46 0.52 0.58 5.33 5.57 5.80 6.35 6.58 6.80 2.25 BSC. 4.50 BSC. 9.00 9.70 10.40 0.51 0.64 0.83 1.02 1.52 1.78 2.03 Dimensions In Inches Min. Nom. Max. 0.086 0.090 0.094 0.040 0.045 0.050 0.024 TYP. 0.205 0.211 0.217 0.018 0.020 0.023 0.018 0.020 0.023 0.210 0.219 0.228 0.250 0.259 0.268 0.089 BSC. 0.177 BSC. 0.354 0.382 0.409 0.020 0.025 0.033 0.040 0.060 0.070 0.080 Anachip Corp. www.anachip.com.tw 8/10 A Rev.1.0 Oct 21, 2004 AP1122 1A Low Dropout Positive Regulator (4) TO220 E Q P A F H1 D b1 L L1 b e e1 C J1 Symbol A b1 b C D E e e1 F H1 J1 L L1 oP Q Dimensions In Millimeters Min. Nom. Max. 3.55 4.20 4.85 1.14 1.46 1.78 0.51 0.83 1.14 0.31 0.72 1.14 14.20 15.35 16.50 9.70 10.20 10.70 2.29 2.54 2.79 4.83 5.08 5.33 0.51 0.95 1.40 5.84 6.35 6.86 2.03 2.48 2.92 12.72 13.72 14.72 3.66 5.00 6.35 3.53 3.81 4.09 2.54 2.98 3.43 Dimensions In Inches Min. Nom. Max. 0.140 0.165 0.191 0.045 0.057 0.070 0.020 0.033 0.045 0.012 0.028 0.045 0.559 0.604 0.650 0.382 0.402 0.421 0.090 0.100 0.110 0.190 0.200 0.210 0.020 0.037 0.055 0.230 0.250 0.270 0.080 0.098 0.115 0.501 0.540 0.580 0.144 0.197 0.250 0.139 0.150 0.161 0.100 0.117 0.135 Anachip Corp. www.anachip.com.tw 9/10 SEATING PLANE Rev.1.0 Oct 21, 2004 AP1122 1A Low Dropout Positive Regulator (5) SOT89 1.7 D1 E HE 0.4 1.9 1.3 L e1 e 80(2x) D 1.5 0.9 Land Pattern Recommendation (Unit: mm) 50(2x) A c b b1 b Symbol A b b1 C D D1 e e1 E HE L Dimensions In Millimeters Min. 1.40 0.36 0.41 0.35 4.40 1.40 2.90 1.45 2.35 3.94 0.80 Nom. 1.50 0.42 0.47 0.39 4.50 1.60 3.00 1.50 2.48 Max. 1.60 0.48 0.53 0.43 4.60 1.75 3.10 1.55 2.60 4.25 1.20 Dimensions In Inches Min. 0.055 0.014 0.016 0.014 0.173 0.055 0.114 0.057 0.093 0.155 0.031 Nom. 0.059 0.016 0.043 0.015 0.177 0.062 0.118 0.059 0.098 Max. 0.063 0.018 0.051 0.017 0.181 0.069 0.122 0.061 0.102 0.167 0.047 Anachip Corp. www.anachip.com.tw 10/10 2.7 Rev.1.0 Oct 21, 2004 |
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