AP1122 1A LOW DROPOUT POSITIVE REGULATOR Description Pin Assignments AP1122 is a low dropout positive fixed-mode regulator with (Top View) 1A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC 3 V IN applications such as high-speed bus termination and low current 1.2V logic supply. AP1122 is also well suited for other 2 V OUT applications such as VGA cards. AP1122 is guaranteed to have lower than 1.3V dropout at full load current making it 1 GND ideal to provide well-regulated outputs of 1.2 output voltage Tab is V with 2.5V input voltage supply. OUT SOT223-3L Applications (Top View) • PC peripheral 3 VIN • Communication 2 V OUT Features 1 GND • 1.3V maximum dropout at full load current • Fixed 1.2V± 2% output voltage Tab is V OUT • Fast transient response TO252-3L/ TO263-3L • Output current limiting • Built-in thermal shutdown • Good noise rejection (Top View) • Packages: SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and TO220-3L 3 V IN • SOT89-3L, SOT223-3L and TO252-3L: Available in “Green” Molding Compound (No Br, Sb) 2 V OUT • Lead Free Finish/ RoHS Compliant (Note 1) 1 GND Tab is V OUT SOT89-3L ( Top View) 3 V IN 2 V OUT 1 GND Tab is V OUT 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 1 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Typical Application Circuit 2.5V C1 100uF V IN VOUT 1.2V/1A C2 GND 100uF Tab is V OUT Pin Descriptions Pin Name I/O Pin # Description GND I 1 Ground Pin The output of the regulator. A minimum of 10uF capacitor (0.15Ω ≤ ESR ≤ 20Ω) V O 2 OUT must be connected from this pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor is connected from V I 3 this pin to ground to insure that the input voltage does not sag below the IN minimum dropout voltage during the load transient response. Functional Block Diagram V 3 2 V IN OUT + + + 1.2V CURRENT LIMIT + Thermal Shutdown 1 GND AP1122 2 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Absolute Maximum Ratings Symbol Parameter Rating Unit V DC Supply Voltage -0.3 to 12 V IN T Storage Temperature -65 to +150 oC ST T Maximum Junction Temperature 150 oC MJ Recommended Operating Conditions Symbol Parameter Min Max Unit I Output Current - 1.0 A OUT T Operating Junction Temperature Range 0 125 oC OP Electrical Characteristics (Under Operating Conditions) Parameter Test Conditions Min Typ. Max Unit Output Voltage 2.5V≦VIN≦12V, IO=10mA, TA=25oC 1.176 1.2 1.224 V Line Regulation 2.5V≦VIN≦12V, IO=10mA, TA=25oC 0.2 % Load Regulation V =2.5V~12V, 10mA<Io<1A, T =25oC (Note 2, 3) 1 % IN A Dropout Voltage I = 1A ,ΔV = 1%V 1.3 V (V -V ) OUT OUT OUT IN OUT Current Limit (V -V ) = 5V 1. 1 A IN OUT M(Niontime u4m) Load Current 0oC≦TJ≦125oC 5 10 mA Thermal Regulation T =25oC, 30ms pulse 0.008 0.04 %/W A Ripple Rejection F=120Hz,C =25uF Tantalum, I =1A, V =V +3V 60 70 dB OUT OUT IN OUT Temperature Stability I =10mA 0.5 % O SOT89-3L: Control Circuitry/Power Transistor (Note 5) 182 SOT223-3L: Control Circuitry/Power Transistor (Note 6) 107 θJA Thermal Resistance TO252-3L: Control Circuitry/Power Transistor (Note 5) 73 oC/W Junction-to-Ambient TO220-3L: Control Circuitry/Power Transistor (Note 5) 78 TO263-3L: Control Circuitry/Power Transistor (Note 5) 60 SOT89-3L: Control Circuitry/Power Transistor (Note 5) 42 SOT223-3L: Control Circuitry/Power Transistor (Note 6) 16 θ Thermal Resistance JC TO252-3L: Control Circuitry/Power Transistor (Note 5) 12 oC/W Junction-to-Case TO220-3L: Control Circuitry/Power Transistor (Note 5) 3.5 TO263-3L: Control Circuitry/Power Transistor (Note 5) 3.5 Notes: 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 3 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Typical Performance Characteristics 2. 0 0.20 1. 8 %) 1. 6 n ( 0 I load=800mA V)1. 4 atio e (1. 2 Tj = 25 oC evi-0.20 g D olta1. 0 ge V a ut 0. 8 olt-0.40 opo0. 6 Tj = 125 oC ut V Dr0. 4 Outp-0.80 0. 2 0 - 1 0 250 500 750 1000 -25 0 25 50 75 100 125 Output Current (mA) Temperature (oC) Dropout Voltage vs Output Current Load Regulation vs Temperature 2 1 1.5 0.8 1 %) ge (0. 5 n (%)0.6 n o ha 0 ati e C evi oltag-0.5 ge D0.4 ut V - 1 Volta0.2 utp-1.5 ut O p ut - 2 O 0 -50 -25 0 25 50 75 100 125 150 2 4 6 8 10 12 Temperature (oC) Input Voltage (V) Percent Change in Output Voltage vs Temperature Line Regulation age (V) 67..55 CCoinu=t1=u1F0uF Tantalum n (mV)2300 CCPr oienul o=ta =d1 u1=F0 1 u0F0 m TAantalum Volt atio10 ut 5.5 evi p D 0 In 40 ge mV) Volta-10 ation ( 20 utput -20 evi 0 O 2 age D -20 nt (A) 1 Volt urre 0 utput -400 20 40 60 80 100 120 140 160 180 200 oad C -10 10 20 30 40 50 60 70 80 90 100 O TIME (us) L TIME (us) Line Transient Response Load Transient Response AP1122 4 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Ordering Information AP 1122 X X - X Package Lead Free Packing E : SOT223-3L L : Lead Free (Note 7) U : Tube D : TO252-3L G : Green 13 : Tape & Reel Y : SOT89-3L K : TO263-3L T : TO220-3L Tube 13” Tape and Reel Package Packaging Device Part Number Part Number Code (Note 8) Quantity Quantity Suffix Suffix AP1122EL-13 E SOT223-3L NA NA 2500/Tape & Reel -13 AP1122EG-13 E SOT223-3L NA NA 2500/Tape & Reel -13 AP1122DL-13 D TO252-3L NA NA 2500/Tape & Reel -13 AP1122DG-13 D TO252-3L NA NA 2500/Tape & Reel -13 AP1122YL-13 Y SOT89-3L NA NA 2500/Tape & Reel -13 AP1122YG-13 Y SOT89-3L NA NA 2500/Tape & Reel -13 AP1122KL-13 K TO263-3L NA NA 800/Tape & Reel -13 AP1122TL-U T TO220-3L 50 -U NA NA Notes: 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 5 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Marking Information (1) SOT223-3L ( Top View ) Y : Year : 0~9 Logo Y W X W : Week : A~Z : 1~26 week; a~z : 27~52 week; z repersents 52 and 53 week Part Number 1 1 2 2 X : Internal code a~z : Lead Free A~Z : Green (2) TO252-3L ( Top View ) Logo L : Lead Free G : Green Part Number 1 1 2 2 YY : Year : 01~09 YY WW X X WW : Week : 01~52, 52 represents 52 and 53 week X : Internal Code (3) SOT89-3L ( Top View ) XX : Identification code Y : Year : 0~9 X X W : Week : A~Z : 1~26 week; Y W X a~z : 27~52 week; z represents 52 and 53 week X : Internal code 1 2 3 a~z : Lead Free A~Z : Green Part Number Package Identification Code AP1122 SOT89-3L JB AP1122 6 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Marking Information (Continued) (4) TO263-3L ( Top View ) Logo L : Lead Free Part Number 1 1 2 2 YY : Year : 01~09 YY WW X X WW : Week : 01~52, 52 represents 52 and 53 week X : Internal code (5) TO220-3L ( Top View ) Logo L : Lead Free Part Number 1 1 2 2 YY WWXX YY : Year : 01~09 WW : Week : 01~52, 52 represents 52 and 53 week X : Internal code AP1122 7 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Package Outline Dimensions (All Dimensions in mm) (1) SOT223-3L AP1122 8 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Package Outline Dimensions (Continued) (2) TO252-3L 7 2 5.6 1. 6.354/6.80 Typ 6.58 8/ 8 5.20/5.50 Typ 5.35 0. 6 5. 0/6.20p 5.57 11.0 7.2 4y 5.T 2.25 0 2. 1.2 0.61 Typ 2.28 Land Pattern Recommendation (Unit: mm) 0.64/1.02 BSC. 2.18/2.40 4.57 BSC. Typ 0.83 01..8194/ 9.00/10.40 Typ 9.70 Typ 2.29 2 E 0.45/0.58 0.51 OT SEATING Typ 0.52 E N PLANE 0T.y4p5 /00..5528 E S (3) SOT89-3L 1.40/1.75 Typ 1.60 1.7 8 4 2. yp 2.7 T 5 60 4.2 2. 4/ 35/ 3.9 2. 0.4 9 80/20 1. 1.3 0.1. 1.45/1.55 Typ 1.50 0.9 1.5 2.90/3.10 Land Pattern Recommendation (Unit: mm) Typ 3.00 50(2x) 80(2x) 4.40/4.60 Typ 4.50 00 65 1.1. 0/p 4y 1.T 0.36/0.480.41/0.53 0.36/0.48 0.35/0.43 Typ 0.42 Typ 0.47 Typ 0.42 Typ 0.39 AP1122 9 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated

AP1122 1A LOW DROPOUT POSITIVE REGULATOR Package Outline Dimensions (Continued) (4) TO263-3L 0 9.65/10.29 Typ 9.97 2.92Typ 1.3 10.9 5 4 yp 9.1 p 15.2 9.1 T y 65 8 T 5.7 8.65/9. 61/15.8 1 4. 1 3 2.54 1.27/1.78Typ 1.52 1.3 2.54 BSC. 0.51/0.99 Typ 0.75 Land Pattern Recommendation (Unit: mm) 1.14/1.40 Typ1.27 0.38 Typ 4.06/4.83Typ 4.45 2.28/2.80 Typ 2.54 1.14/1.40Typ 1.27 (5) TO220-3L 3.55/4.85 2.54/3.43 9.70/10.70 Ø3.53/4.09 Typ 4.20 0.51/1.40 Typ 2.98 Typ 10.20 Typ 3.81 Typ 0.95 E 5.84/6.86 N A 4.20/16.50Typ 15.35 Typ 6.35 EATING PL 1 S 3.66/6.35 Typ 5.00 2 1.14/1.78 72 Typ 1.46 14.3.7 72/p 1 2.Ty 1 0.31/1.14 0.51/1.14 Typ 0.72 Typ 0.83 2.99/2.79 2.03/2.92 4.83/5.33 Typ 2.54 Typ2.48 Typ 5.08 AP1122 10 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © 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). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. 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. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2010, Diodes Incorporated www.diodes.com AP1122 11 of 11 May 2010 Document number: DS31012 Rev. 9 - 2 www.diodes.com © Diodes Incorporated