AP1122 1A LOW DROPOUT POSITIVE REGULATOR General Description 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 Packages: SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and TO220-3L SOT223-3L and TO252-3L: Available in "Green" Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 2) AP1122 is a low dropout positive fixed-mode regulator with 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 Typical Application Circuit 2.5V C1 100uF VIN VOUT GND 1.2V/1A C2 100uF Tab is VOUT AP1122 Rev. 8 1 of 12 www.diodes.com MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Ordering Information AP 1122 X X - X Package E : SOT223-3L D : TO252-3L Y : SOT89-3L K : TO263-3L T : TO220-3L Device Lead-free Lead-free Lead-free Lead-free Lead-free Lead-free Lead-free AP1122EG-U AP1122EG-13 AP1122EL-U AP1122EL-13 AP1122DG-U AP1122DG-13 AP1122DL-U AP1122DL-13 AP1122YL-13 AP1122KL-U AP1122KL-13 AP1122TL-U Package Code Packaging (Note 3) E E E E D D D D Y K K T SOT223-3L SOT223-3L SOT223-3L SOT223-3L TO252-3L TO252-3L TO252-3L TO252-3L SOT89-3L TO263-3L TO263-3L TO220-3L Lead Free L : Lead Free (Note 1) G : Green Packing U : Tube 13 : Tape & Reel Tube Part Number Quantity Suffix 75 -U NA NA 75 -U NA NA 80 -U NA NA 80 -U NA NA NA NA 50 -U NA NA 50 -U 13" Tape and Reel Part Number Quantity Suffix NA NA 2500/Tape & Reel -13 NA NA 2500/Tape & Reel -13 NA NA 2500/Tape & Reel -13 NA NA 2500/Tape & Reel -13 2500/Tape & Reel -13 NA NA 800/Tape & Reel -13 NA NA Lead-free Notes: 1. SOT89-3L, TO263-3L and TO220-3L are available in "Lead Free" products only. 2. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html 3. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AP1122 Rev. 8 2 of 12 www.diodes.com MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Pin Assignment (1) SOT223-3L (2) TO252-3L/ TO263-3L ( Top View ) ( Top View ) 3 VIN 3 2 VOUT 2 1 GND 1 Tab is VOUT VIN VOUT GND Tab is VOUT (3) SOT89-3L (4) TO220-3L ( Top View ) 3 VIN 2 VOUT 1 GND ( Top View) 3 VIN 2 VOUT 1 GND Tab is VOUT Tab is VOUT Pin Descriptions Pin Name I/O Pin # GND I 1 Ground Pin VOUT O 2 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. VIN I 3 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. AP1122 Rev. 7 Description 3 of 12 www.diodes.com FEBRUARY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Block Diagram V IN 3 2 V OUT 1 GND + + 1.2V + CURRENT LIMIT + Thermal Shutdown Absolute Maximum Ratings Symbol VIN TST TMJ Parameter Rating DC Supply Voltage Storage Temperature Maximum Junction Temperature Unit -0.3 to 12 -65 to +150 150 V C o C o Recommended Operating Conditions Symbol IOUT TOP AP1122 Rev. 8 Parameter Output Current Operating Junction Temperature Range 4 of 12 www.diodes.com Min 0 Max 1.0 125 Unit A o C MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Electrical Characteristics Parameter Output Voltage (Under Operating Conditions) Conditions 2.5VVIN12V, IO=10mA, TA=25oC 2.5VVIN12V, IO=10mA, TA=25 C Load Regulation Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current (Note 6) Thermal Regulation Ripple Rejection Temperature Stability VIN=2.5V~12V, 10mA<Io<1A, TA=25 C (Note 4, 5) JC Thermal Resistance Junction-to-Case Notes: Typ. Max Unit 1.2 1.224 V 0.2 % 1 % 1.3 V o Line Regulation JA Thermal Resistance Junction-to-Ambient Min 1.176 o IOUT = 1A ,VOUT = 1%VOUT (VIN-VOUT) = 5V o 1. 1 o 0 CTJ125 C o TA=25 C, 30ms pulse F=120Hz,COUT=25uF Tantalum, IOUT=1A, VIN=VOUT+3V IO=10mA SOT89-3L: Control Circuitry/Power Transistor (Note 7) SOT223-3L: Control Circuitry/Power Transistor (Note 8) TO252-3L: Control Circuitry/Power Transistor (Note 7) TO220-3L: Control Circuitry/Power Transistor (Note 7) TO263-3L: Control Circuitry/Power Transistor (Note 7) SOT89-3L: Control Circuitry/Power Transistor (Note 7) SOT223-3L: Control Circuitry/Power Transistor (Note 8) TO252-3L: Control Circuitry/Power Transistor (Note 7) TO220-3L: Control Circuitry/Power Transistor (Note 7) TO263-3L: Control Circuitry/Power Transistor (Note 7) A 5 10 mA 0.008 60 0.5 182 107 73 78 60 42 16 12 3.5 3.5 0.04 70 %/W dB % o C/W o C/W 4. 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. 5. 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. 6. 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. 7. Test conditions for SOT89-3L, TO252-3L, TO220-3L, and TO263-3L: Devices mounted on FR-4 substrate, single sided PC board, 2oz copper, with minimum recommended pad layout, no air flow. 8. Test condition for SOT223-3L: Device mounted on FR-4 substrate, single sided PC board, 2oz copper, with 5mmX5mm thermal pad layout, no air flow. AP1122 Rev. 8 5 of 12 www.diodes.com MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Typical Performance Characteristics 0.20 2. 0 Output Voltage Deviation (%) 1. 8 1. 6 Dropout Voltage (V) 1. 4 1. 2 0 I load=800mA -0.20 Tj = 25 oC 1. 0 -0.40 0. 8 Tj = 125 oC 0. 6 -0.80 0. 4 0. 2 0 0 250 750 500 -1 1000 Output Current (mA) -25 Dropout Voltage vs Output Current 0 25 50 Temperature (oC) 75 100 125 Load Regulation vs Temperature 2 1 1.5 0. 5 0 -0.5 -1 -1.5 -2 -50 -25 0 25 50 Temperature (oC) 75 100 125 150 Output Voltage Deviation (%) Output Voltage Change (%) 0.8 1 0.6 0.4 0.2 0 2 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) 10 12 Line Regulation 30 C in = 1uF C out = 10 uF Tantalum Preload = 100mA 20 10 0 -10 -20 2 1 0 -1 Line Transient Response AP1122 Rev. 8 8 Input Voltage (V) Load Current (A) Output Voltage Deviation (mV) Output Voltage Deviation (mV) Input Voltage (V) 7.5 6 4 Percent Change in Output Voltage vs Temperature 0 10 20 30 40 50 60 70 80 90 100 TIME (us) Load Transient Response 6 of 12 www.diodes.com MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Marking Information (1) SOT223-3L ( Top View ) Logo YWX Part Number 1122 Y : Year : 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z repersents 52 and 53 week X : Internal code a~z : Lead Free A~Z : Green (2) TO252-3L ( Top View ) Logo 1122 YY WW X X Part Number L : Lead Free G : Green YY : Year : 01~09 WW : Week : 01~52, 52 represents 52 and 53 week X : Internal Code (3) SOT89-3L ( Top View ) XX Y W X 1 2 3 XX : Identification code Y : Year : 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : Internal code a~z : Lead Free Marking Code Table Identification code Output version JB AP1122 AP1122 Rev. 8 7 of 12 www.diodes.com MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Marking Information (Continued) (4) TO263-3L ( Top View ) Logo Part Number L : Lead Free 1122 YY WW X X YY : Year : 01~09 WW : Week : 01~52, 52 represents 52 and 53 week X : Internal code (5) TO220-3L ( Top View ) Logo L : Lead Free Part Number 1122 YY WW X X YY : Year : 01~09 WW : Week : 01~52, 52 represents 52 and 53 week X : Internal code AP1122 Rev. 8 8 of 12 www.diodes.com MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Package Information (All Dimensions in mm) (1) SOT223-3L AP1122 Rev. 8 9 of 12 www.diodes.com MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Package Information (Continued) 0.88/1.27 (2) TO252-3L 6.354/6.80 Typ 6.58 7.2 11.0 5.40/6.20 Typ 5.57 5.6 5.20/5.50 Typ 5.35 5.6 2.0 2.25 1.2 2.28 BSC. 4.57 BSC. Land Pattern Recommendation (Unit: mm) 0.64/1.02 Typ 0.83 0.89/ 1.14 0.45/0.58 Typ 0.52 2.18/2.40 Typ 2.29 9.00/10.40 Typ 9.70 0.51 SEE NOTE2 0.61 Typ SEATING PLANE 0.45/0.58 Typ 0.52 (3) SOT89-3L 1.40/1.75 Typ 1.60 2.7 3.94/4.25 1.45/1.55 Typ 1.50 1.3 1.9 0.4 0.80/ 1.20 2.35/2.60 Typ 2.48 1.7 1.5 0.9 Land Pattern Recommendation (Unit: mm) 2.90/3.10 Typ 3.00 50 (2x) 80 (2x) 1.40/1.60 Typ 1.50 4.40/4.60 Typ 4.50 0.36/0.48 0.41/0.53 0.36/0.48 Typ 0.42 Typ 0.47 Typ 0.42 AP1122 Rev. 8 0.35/0.43 Typ 0.39 10 of 12 www.diodes.com MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Package Information (Continued) 10.9 1.27/ 1.78 Typ 1.52 3 15.7 9.1 8.65/9.65 Typ 9.15 14.61/15.88 Typ 15.24 9.65/10.29 Typ 9.97 2.92 Typ 1.30 (4) TO263-3L 2.54 BSC. 1.3 0.51/0.99 Typ 0.75 0.38 Typ 4.06/4.83 Typ 4.45 1.14/1.40 Typ1.27 2.54 Land Pattern Recom m endation (Unit: m m ) 1.14/1.40 Typ 1.27 2.28/2.80 Typ 2.54 (5) TO220-3L O3.53/4.09 Typ 3.81 3.55/4.85 Typ 4.20 0.51/1.40 Typ 0.95 SEATING PLANE 9.70/10.70 Typ 10.20 5.84/6.86 Typ 6.35 14.20/16.50 Typ 15.35 2.54/3.43 Typ 2.98 1.14/1.78 Typ 1.46 4.83/5.33 Typ 5.08 AP1122 Rev. 8 12.72/14.72 Typ 13.72 3.66/6.35 Typ 5.00 0.31/1.14 0.51/1.14 Typ 0. 72 Typ 0.83 2.99/2.79 Typ 2.54 11 of 12 www.diodes.com 2.03/2.92 Typ2.48 MAY 2009 (c) Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. 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