AP1122 1A LOW DROPOUT POSITIVE REGULATOR Description Pin Assignments AP1122 is a low dropout positive fixed-mode regulator with 1A output current capability. The product is specifically (Top View) designed to provide well-regulated supply for low voltage IC 3 VIN 2 VOUT 1 GND 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 Tab is VOUT with 2.5V input voltage supply. SOT223-3L Applications • • (Top View) VIN 3 PC peripheral Communication 2 VOUT Features GND 1 • • • • • • • • • 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 SOT89-3L, SOT223-3L and TO252-3L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/ RoHS Compliant (Note 1) Tab is VOUT TO252-3L/ TO263-3L (Top View) 3 VIN 2 VOUT 1 GND Tab is VOUT SOT89-3L ( Top View) 3 VIN 2 VOUT 1 GND Tab is VOUT TO220-3L Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. AP1122 Document number: DS31012 Rev. 9 - 2 1 of 11 www.diodes.com May 2010 © Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Typical Application Circuit 2.5V C1 100uF VIN VOUT 1.2V/1A C2 100uF GND Tab is VOUT Pin Descriptions Pin Name I/O Pin # Description GND I 1 Ground Pin VOUT O 2 The output of the regulator. A minimum of 10uF capacitor (0.15Ω ≤ ESR ≤ 20Ω) 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. Functional Block Diagram V IN 3 2 V OUT 1 GND + + 1.2V + CURRENT LIMIT + Thermal Shutdown AP1122 Document number: DS31012 Rev. 9 - 2 2 of 11 www.diodes.com May 2010 © Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Absolute Maximum Ratings Symbol VIN TST TMJ Parameter DC Supply Voltage Storage Temperature Maximum Junction Temperature Rating -0.3 to 12 -65 to +150 150 Unit V o C o C Recommended Operating Conditions Symbol IOUT TOP Parameter Min 0 Output Current Operating Junction Temperature Range Max 1.0 125 Unit A o C Electrical Characteristics (Under Operating Conditions) Parameter Test Conditions o Output Voltage 2.5V≦VIN≦12V, IO=10mA, TA=25 C Line Regulation 2.5V≦VIN≦12V, IO=10mA, TA=25oC Load Regulation Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current (Note 4) Thermal Regulation Ripple Rejection Temperature Stability VIN=2.5V~12V, 10mA<Io<1A, TA=25oC (Note 2, 3) θJA Thermal Resistance Junction-to-Ambient θJC Thermal Resistance Junction-to-Case Notes: Min Typ. Max 1.176 1.2 1.224 V 0.2 % 1 % 1.3 V IOUT = 1A ,ΔVOUT = 1%VOUT (VIN-VOUT) = 5V Unit 1. 1 0oC≦TJ≦125oC 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 5) SOT223-3L: Control Circuitry/Power Transistor (Note 6) TO252-3L: Control Circuitry/Power Transistor (Note 5) TO220-3L: Control Circuitry/Power Transistor (Note 5) TO263-3L: Control Circuitry/Power Transistor (Note 5) SOT89-3L: Control Circuitry/Power Transistor (Note 5) SOT223-3L: Control Circuitry/Power Transistor (Note 6) TO252-3L: Control Circuitry/Power Transistor (Note 5) TO220-3L: Control Circuitry/Power Transistor (Note 5) TO263-3L: Control Circuitry/Power Transistor (Note 5) 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 2. 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. 3. 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. 4. 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. 5. 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. 6. 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 Document number: DS31012 Rev. 9 - 2 3 of 11 www.diodes.com May 2010 © 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) Document number: DS31012 Rev. 9 - 2 10 12 Line Regulation 30 C in = 1uF C out = 10 uF Tantalum Preload = 100mA 20 10 0 -10 -20 2 1 0 -1 0 Line Transient Response AP1122 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 10 20 30 40 50 60 70 80 90 100 TIME (us) Load Transient Response 4 of 11 www.diodes.com May 2010 © 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 AP1122EL-13 AP1122EG-13 AP1122DL-13 AP1122DG-13 AP1122YL-13 AP1122YG-13 AP1122KL-13 AP1122TL-U Notes: Package Code Packaging (Note 8) E E D D Y Y K T SOT223-3L SOT223-3L TO252-3L TO252-3L SOT89-3L SOT89-3L TO263-3L TO220-3L Lead Free L : Lead Free (Note 7) G : Green Tube Part Number Quantity Suffix NA NA NA NA NA NA NA NA NA NA NA NA NA NA 50 -U Packing U : Tube 13 : Tape & Reel 13” Tape and Reel Part Number Quantity Suffix 2500/Tape & Reel -13 2500/Tape & Reel -13 2500/Tape & Reel -13 2500/Tape & Reel -13 2500/Tape & Reel -13 2500/Tape & Reel -13 800/Tape & Reel -13 NA NA 7. TO263-3L and TO220-3L are available in “Lead Free” products only. 8. 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 Document number: DS31012 Rev. 9 - 2 5 of 11 www.diodes.com May 2010 © 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 Part Number AP1122 AP1122 Document number: DS31012 Rev. 9 - 2 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 A~Z : Green Package SOT89-3L 6 of 11 www.diodes.com Identification Code JB May 2010 © 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 Document number: DS31012 Rev. 9 - 2 7 of 11 www.diodes.com May 2010 © Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Package Outline Dimensions (All Dimensions in mm) (1) SOT223-3L AP1122 Document number: DS31012 Rev. 9 - 2 8 of 11 www.diodes.com May 2010 © Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Package Outline Dimensions (Continued) 6.354/6.80 Typ 6.58 5.6 7.2 11.0 5.40/6.20 Typ 5.57 5.6 5.20/5.50 Typ 5.35 0.88/1.27 (2) TO252-3L 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 Document number: DS31012 Rev. 9 - 2 0.35/0.43 Typ 0.39 9 of 11 www.diodes.com May 2010 © Diodes Incorporated AP1122 1A LOW DROPOUT POSITIVE REGULATOR Package Outline Dimensions (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 Land Pattern Recom m endation (Unit: m m ) 0.38 Typ 4.06/4.83 Typ 4.45 1.14/1.40 Typ1.27 2.54 1.14/1.40 Typ 1.27 2.28/2.80 Typ 2.54 (5) TO220-3L Ø3.53/4.09 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 Document number: DS31012 Rev. 9 - 2 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 10 of 11 www.diodes.com 2.03/2.92 Typ2.48 May 2010 © 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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