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| AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Description AP1086 is a low dropout positive adjustable or fixed-mode regulator with 1.5A 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. AP1086 is also well suited for other applications such as VGA cards. AP1086 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well-regulated outputs of 1.25V to 5.0V with 4.7 to 12V input supply by different output voltage. Pin Assignments (Top View) 3 2 1 Tab is VOUT VIN VOUT Adj (GND) TO252-3L (Top View) 3 2 VIN VOUT Adj (GND) Features * * * * * * * * 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V,3.3V, 5.0V 1.4V Maximum Dropout at Full Load Current Fast Transient Response Built-in Thermal Shutdown Output Current Limiting Lead Free Packages: TO252-3L, TO263-3L, TO220-3L TO252-3L, TO263-3L, and TO220-3L: Available in "Green" Molding Compound (No Br, Sb) Lead Free Finish/ RoHS Compliant (Note 1) 1 Tab is VOUT TO263-3L (Top View) 3 2 1 Tab is VOUT VIN VOUT Adj (GND) 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. Typical Application Circuit 5V to 3.3V Fixed Mode Regulator 5V C1 100uF Vin Vout GND Tab is Vout 3.3V/1.5A C2 100uF Vin Vout Adj Tab is Vout R1 121 R2 121 5V C1 100uF Adjustable Regulator VOUT=Vref x (1+R2/R1) 2.5V/1.5A C2 100uF Note: Vo = V RE F ( R2 +) 1 R1 June 2010 (c) Diodes Incorporated AP1086 Document number: DS31028 Rev. 6 - 2 1 of 10 www.diodes.com AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Pin Descriptions Pin Name Adj (GND) VOUT O I/O Pin # 1 2 Description Adjustable (Ground only for fixed mode) 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 1.4V higher than VOUT in order for the device to regulate properly. VIN I 3 Functional Block Diagram VIN 3 2 VOUT + + CURRENT LIMIT + Thermal Shutdown 1 Adj 1.25V + 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 Top Parameter Operating Junction Temperature Range Min 0 Max 125 Unit o C AP1086 Document number: DS31028 Rev. 6 - 2 2 of 10 www.diodes.com June 2010 (c) Diodes Incorporated AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Electrical Characteristics (Under Operating Conditions) Parameter Reference Voltage AP1086-Adj AP1086-1.5 AP1086-1.8 Output Voltage AP1086-2.5 AP1086-3.3 AP1086-5.0 Line Regulation AP1086-XXX AP1086-Adj AP1086-1.5 AP1086-1.8 Load Regulation AP1086-2.5 AP1086-3.3 AP1086-5.0 Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current (Note 4) Thermal Regulation Ripple Rejection AP1086-Adj/-2.5/ -3.3/-3.6/-5.0 AP1086-Adj/-2.5/ -3.3/-3.6/-5.0 AP1086-XXX Conditions TA = 25 C, (VIN-VOUT)= 1.5V,IO = 10mA IOUT = 10mA, TA = 25 C, 3VVIN12V IOUT = 10mA, TA = 25 C, 3.3VVIN12V IOUT = 10mA, TA = 25C, 4VVIN12V IOUT = 10mA, TA = 25C, 4.8VVIN12V IOUT = 10mA, TA = 25 C, 6.5VVIN12V IO = 10mA, VOUT+1.5V Min 1.225 1.470 1.764 2.450 3.235 4.900 1. 6 - Typ. 1.250 1.500 1.800 2.500 3.300 5.000 12 15 20 26 40 1.3 5 0.008 60 0.003 0.5 101 83 86 15 0.65/2.7 0.65/2.7 Max 1.275 1.530 1.836 2.550 3.365 5.100 0.2 1 15 18 25 33 50 1.4 10 0.04 70 - Unit V V V V V % % mV mV mV mV mV V A mA %/W dB % % o TA = 25C, 30ms pulse f = 120Hz,COUT = 25uF Tantalum, IOUT = 1.5A AP1086-XXX IO = 10mA TO252-3L TO263-3L TO220-3L TO252-3L: Control Circuitry/Power Transistor TO263-3L: Control Circuitry/Power Transistor TO220-3L: Control Circuitry/Power Transistor VIN = VOUT+3V - RMS Noise (% of VOUT) Temperature Stability JA Thermal Resistance Junction-to-Ambient (No heat sink; No air flow) JC Thermal Resistance Junction-to-Case Notes: 10Hz f 10KHz 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 in input and output 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. AP1086 Document number: DS31028 Rev. 6 - 2 3 of 10 www.diodes.com June 2010 (c) Diodes Incorporated AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Functional Description Introduction The AP1086 adjustable or fixed-mode Low Dropout (LDO) regulator is a 3 terminal device which can easily be programmed by internal mask change to any voltages within the range of 1.25V to VIN-1.4V. The AP1086 only needs 1.4V differential between VIN and VOUT to maintain output regulation. In addition, the output voltage tolerances are also extremely tight and they include the transient response as part of the specification. For example, Intel VRE specification calls for a total of +/- 100mV including initial tolerance, load regulation and 0 to 1.5A load step. The AP1086 is specifically designed to meet the fast current transient needs as well as providing an accurate initial voltage, reducing the overall system cost with the need for fewer output capacitors. Load Regulation Since the AP1086 is only a 3 terminal device, it is not possible to provide true remote sensing of the output voltage at the load. But it can supply good load regulation by internal feedback bypass the external loss such as adjustable mode. Stability The AP1086 requires the use of an output capacitor as part of the frequency compensation in order to make the regulator stable. For most applications a minimum of 10uF aluminum electrolytic capacitor insures both stability and good transient response. Thermal Design The AP1086 incorporates an internal thermal shutdown that protects the device when the junction temperature exceeds the maximum allowable junction temperature. Although this device can operate with junction temperatures in the range of 150oC, it is recommended that the selected heat sink be chosen such that during maximum continuous load operation the junction temperature is kept below the temperature. Layout Consideration The output capacitors must be located as close to the VOUT terminal of the device as possible. It is recommended to use a section of a layer of the PC board as a plane to connect the VOUT pin to the output capacitors to prevent any high frequency oscillation that may result due to excessive trace inductance. AP1086 Document number: DS31028 Rev. 6 - 2 4 of 10 www.diodes.com June 2010 (c) Diodes Incorporated AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Typical Performance Characteristics 2. 0 1. 8 0.20 Output Voltage Deviation (%) 1. 6 0 I load=1.5A Dropout Voltage (V) 1. 4 1. 2 1. 0 0. 8 0. 6 0. 4 0. 2 0 0 0.25 0.5 0.75 1.0 1.25 1.5 Tj = 125 oC Tj = 25 oC -0.20 -0.40 -0.80 -1 -25 0 Dropout Voltage vs Output Current 2 1.5 0.8 1 Output Current (A) Temperature ( oC) 25 50 75 100 125 Load Regulation vs Temperature Output Voltage Change (%) 1 0. 5 0 -0.5 -1 -1.5 -2 -50 -25 0 25 50 75 100 125 150 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 6 8 10 12 Line Regulation Cin=1uF Cout=10uF Tantalum Preload=100mA Input Voltage (V) 0 20 40 60 80 100 120 140 160 180 200 TIME (us) 30 40 50 60 70 80 90 100 TIME (us) Line Transient Response Load Transient Response AP1086 Document number: DS31028 Rev. 6 - 2 5 of 10 www.diodes.com June 2010 (c) Diodes Incorporated AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Ordering Information AP1086 X XX X - X Low Dropout Regulator Package D : TO252-3L K : TO263-3L T : TO220-3L Vout Blank = Adj 15 = 1.5V 18 = 1.8V 25 = 2.5V 33 = 3.3V 50 = 5.0V Lead Free L : Lead Free G : Green Packing U : Tube 13 : Taping & Reel Device AP1086DXXL-13 AP1086DXXG-13 AP1086KXXL-13 AP1086KXXG-13 AP1086TXXL-U AP1086TXXG-U Notes: Package Code D D K K T T Packaging (Note 5) TO252-3L TO252-3L TO263-3L TO263-3L TO220-3L TO220-3L Tube Part Number Quantity Suffix NA NA NA NA NA NA NA NA 50 -U 50 -U 13" Tape and Reel Part Number Quantity Suffix 2500/Tape & Reel -13 2500/Tape & Reel -13 800/Tape & Reel -13 800/Tape & Reel -13 NA NA NA NA 5. 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. AP1086 Document number: DS31028 Rev. 6 - 2 6 of 10 www.diodes.com June 2010 (c) Diodes Incorporated AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Marking Information (1) TO252-3L ( Top view ) Logo Part Number 1086 for ADJ 86-VV : 15 for 1.5V 18 for 1.8V 25 for 2.5V 33 for 3.3V 50 for 5.0V 86-VV YY WW X X L : Lead Free G : Green YY : Year : 01~09 WW : Week : 01~52, 52 represents 52 and 53 week X : Internal Code (2) TO263-3L ( Top view ) Logo Part Number VV: 15 for 1.5V 18 for 1.8V 25 for 2.5V 33 for 3.3V 50 for 5.0V Blank for ADJ L : Lead Free G : Green YY : Year : 01~09 WW : Week : 01~52, 52 represents X : Internal code 1086-VV YY WW X X 52 and 53 week (3) TO220-3L ( Top view ) Logo Part Number VV: 15 for 1.5V 18 for 1.8V 25 for 2.5V 33 for 3.3V 50 for 5.0V Blank for ADJ 1086-VV YY WW X X L : Lead Free G : Green YY : Year : 01~09 WW : Week : 01~52, 52 represents X : Internal code 52 and 53 week AP1086 Document number: DS31028 Rev. 6 - 2 7 of 10 www.diodes.com June 2010 (c) Diodes Incorporated AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Package Outline Dimensions (All Dimensions in mm) (1) Package type: TO252-3L 0.88/1.27 5.6 6.354/6.80 Typ 6.58 5.20/5.50 Typ 5.35 5.40/6.20 Typ 5.57 11.0 5.6 2.25 2.0 7.2 1.2 9.00/10.40 Typ 9.70 2.18/2.40 Typ 2.29 SEE NOTE2 SEATING PLANE 0.45/0.58 Typ 0.52 10.9 1.3 2.54 3 1.14/1.40 Typ 1.27 4.06/4.83 Typ 4.45 15.7 0.61 Typ 2.28 BSC. 4.57 BSC. 0.64/1.02 Typ 0.83 Land Pattern Recommendation (Unit: mm) 0.89/ 1.14 0.45/0.58 Typ 0.52 0.51 (2) Package type: TO263-3L 9.65/10.29 Typ 9.97 2.92 Typ 1.30 14.61/15.88 Typ 15.24 8.65/9.65 Typ 9.15 2.54 BSC. 1.27/ 1.78 Typ 1.52 0.51/0.99 Typ 0.75 1.14/1.40 Typ1.27 Land Pattern Recom m endation (Unit: m m ) 0.38 Typ 2.28/2.80 Typ 2.54 AP1086 Document number: DS31028 Rev. 6 - 2 8 of 10 www.diodes.com 9.1 June 2010 (c) Diodes Incorporated AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Package Outline Dimensions (Continued) (3) Package type: TO220-3L 2.54/3.43 Typ 2.98 9.70/10.70 Typ 10.20 3.53/4.09 Typ 3.81 5.84/6.86 Typ 6.35 3.55/4.85 Typ 4.20 0.51/1.40 Typ 0.95 SEATING PLANE 2.03/2.92 Typ 2.48 14.20/16.50 Typ 15.35 3.66/6.35 Typ 5.00 1.14/1.78 Typ 1.46 4.83/5.33 Typ 5.08 0.31/1.14 0.51/1.14 Typ 0.72 Typ 0.83 2.99/2.79 Typ 2.54 AP1086 Document number: DS31028 Rev. 6 - 2 9 of 10 www.diodes.com 12.72/14.72 Typ 13.72 June 2010 (c) Diodes Incorporated AP1086 1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE 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 (c) 2010, Diodes Incorporated www.diodes.com AP1086 Document number: DS31028 Rev. 6 - 2 10 of 10 www.diodes.com June 2010 (c) Diodes Incorporated |
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