AP1117_10

AP1117 1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Features • • • • • • • • • 1.4V Maximum Dropout at Full Load Current Fast Transient Response Output Current Limiting Built-in Thermal Shutdown Good Noise Rejection 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5.0V Lead Free Packages: SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and TO220-3L SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and TO220-3L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) General Description AP1117 is a low dropout positive adjustable or fixed-mode regulator with 1A output current capability. The product is voltage specifically designed to provide well-regulated supply for low IC applications such as high-speed bus termination and low current 3.3V logic supply. AP1117 is also well suited for other applications such as VGA cards. AP1117 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well-regulated outputs of 1.25 to 5.0 with 6.4V to 18V input supply. AP1117 is available in commercial temperature grade. Applications • • PC Peripheral Communication Typical Application Circuit 5V C1 10uF VIN VOUT GND Tab is VOUT C2 22uF 3.3V/1A VIN VOUT Adj Tab is VOUT R1 121 Ω R2 121 Ω Vo 2.5V/1A 5V C1 10uF C2 22uF ( 5V/3.3V fixed output ) ( 5V/2.5V ADJ output ) Note: Vo = VREF × (1 + R2 ) R1 AP1117 Rev. 19 DS31009 1 of 12 www.diodes.com JANUARY 2010 © Diodes Incorporated AP1117 1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Ordering Information A P 1 1 1 7 X XX X - X Package D : TO252-3L E : SOT223-3L K : TO263-3L T : TO220-3L Y : SOT89-3L Vout Blank : Adj 15 : 1.5V 18 : 1.8V 25 : 2.5V 33 : 3.3V 50 : 5.0V Packaging (Note 2) TO252-3L TO252-3L SOT223-3L SOT223-3L TO263-3L TO263-3L TO220-3L TO220-3L SOT89-3L SOT89-3L Lead Free L : Lead Free G : Green Packing U : Tube 13 : Tape & Reel Device AP1117DXXL-13 AP1117DXXG-13 AP1117EXXL-13 AP1117EXXG-13 AP1117KXXL-13 AP1117KXXG-13 AP1117TXXL-U AP1117TXXG-U AP1117YXXL-13 AP1117YXXG-13 Notes: Package Code D D E E K K T T Y Y Tube Part Number Quantity Suffix NA NA NA NA NA NA NA NA NA NA NA NA 50 -U 50 -U NA NA NA NA 13” Tape and Reel Part Number Quantity Suffix 2500/Tape & Reel -13 2500/Tape & Reel -13 2500/Tape & Reel -13 2500/Tape & Reel -13 800/Tape & Reel -13 800/Tape & Reel -13 NA NA NA NA 2500/Tape & Reel -13 2500/Tape & Reel -13 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. 2. 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. AP1117 Rev. 19 DS31009 2 of 12 www.diodes.com JANUARY 2010 © Diodes Incorporated AP1117 1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Pin Assignments (1) SOT89-3L (2) SOT223-3L ( Top View ) 3 2 1 Tab is VOUT (3) TO220-3L ( Top View ) VIN VOUT Adj (GND) 3 2 1 Tab is VOUT (4) TO252-3L and TO263-3L ( Top View ) VIN VOUT Adj (GND) ( Front View ) 3 VIN 3 2 1 Tab is VOUT VIN VOUT Adj (GND) 2 VOUT 1 Tab is VOUT Adj (GND) Pin Descriptions Pin Name Adj (GND) VOUT I/O I O PIN # 1 2 Description A resistor divider from this pin to the VOUT pin and ground sets the output voltage (Ground only for Fixed-Mode). 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. 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 1.3V higher than VOUT in order for the device to regulate properly. VIN I 3 AP1117 Rev. 19 DS31009 3 of 12 www.diodes.com JANUARY 2010 © Diodes Incorporated AP1117 1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Block Diagram VIN 3 2 VOUT + + 1.25V CURRENT LIMIT + 1 Thermal Shutdown Absolute Maximum Ratings Symbol VIN TMJ Parameter DC Supply Voltage Maximum Junction Temperature Power Dissipation SOT89-3L SOT223-3L TO220-3L TO252-3L TO263-3L Storage Temperature Rating -0.3 to 18 150 Unit V oC PD Internally limited by maximum junction temperature of 150 oC (Note 3) - TST Notes: 3. AP1117 contains an internal thermal limiting circuit that is designed to protect the regulator in the event that the maximum junction temperature exceeded. When activated, typically at 150°C, the regulator output switches off and then back on as the die cools. Recommended Operating Conditions Symbol TOP Parameter Operating Junction Temperature Range Min 0 Max 125 Unit oC AP1117 Rev. 19 DS31009 4 of 12 www.diodes.com + GND (FIXED) 1 Adj mW -65 to +150 oC JANUARY 2010 © Diodes Incorporated AP1117 1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Electrical Characteristics Parameter Reference Voltage AP1117-ADJ AP1117-1.5 AP1117-1.8 Output Voltage AP1117-2.5 AP1117-3.3 AP1117-5.0 Line Regulation AP1117-XXX AP1117-ADJ AP1117-1.5 AP1117-1.8 Load Regulation AP1117-2.5 AP1117-3.3 AP1117-5.0 Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current (Note 6) Thermal Regulation Ripple Rejection Temperature Stability (Under Operating Conditions) Conditions TA = 25 C, (VIN-OUT) = 1.5V IO = 10mA o IOUT = 10mA, TA = 25 C, 3V≦VIN≦12V IOUT = 10mA, TA = 25 C, 3.3V≦VIN≦12V IOUT = 10mA, TA = 25 C, 4V≦VIN≦12V IOUT = 10mA, TA = 25 C, 4.8V≦VIN≦12V IOUT = 10mA, TA = 25 C, 6.5V≦VIN≦12V IO = 10mA,VOUT+1.5V