AP1084T18G-U

NOT RECOMMENDED FOR NEW DESIGN USE AZ1084C AP1084 5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR General Description Features          1.4V Maximum Dropout at Full Load Current Built-in Thermal Shutdown Output Current Limiting Adjustable Output Voltage or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5.0V Fast Transient Response Good Noise Rejection Lead Free Packages: TO252-3L, TO263-3L and TO220-3L TO252-3L, TO263-3L and TO220-3L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) AP1084 is a low dropout positive adjustable or fixed-mode regulator with 5.0A 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. AP1084 is also well suited for other applications such as VGA cards. AP1084 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 3.3V with 4.7 to 12V input supply. Typical Application Circuit 5.0V to 3.3V Fixed Mode Regulator Adjustable Regulator 5V 5V C1 100uF C1 100uF Vin Vin Vout GND 3.3V/5A C2 100uF Vout Adj 2.5V/5A R1 121Ω R2 121Ω Tab is Vout Tab is Vout Note: VO  VREF (1  AP1084 Rev. 9 DS31070 C2 100uF 1 of 11 www.diodes.com R2 R1 ) JANUARY 2010 © Diodes Incorporated AP1084 5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Ordering Information AP1084 X XX X - X Package D : TO252-3L K : TO263-3L T : TO220-3L Device AP1084DXXL-13 AP1084DXXG-13 AP1084KXXL-13 AP1084KXXG-13 AP1084TXXL-U AP1084TXXG-U Notes: Vout Lead Free Blank = Adj 15 = 1.5V 18 = 1.8V 25 = 2.5V 33 = 3.3V 50 = 5.0V L : Lead Free G : Green Package Code Packaging (Note 2) D D K K T T 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 Packing U : Tube 13 : Tape & Reel 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 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. AP1084 Rev. 9 DS31070 2 of 11 www.diodes.com JANUARY 2010 © Diodes Incorporated AP1084 5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Pin Assignment (1) TO252-3L (2) TO263-3L ( Top View ) ( Top View ) VIN 3 3 2 VOUT 1 2 Adj (GND) VIN VOUT 1 Tab is VOUT Adj (GND) Tab is VOUT (3) TO220-3L ( Top View) 3 VIN 2 VOUT 1 Adj (GND) Tab is VOUT Pin Description Pin Name I/O Pin # Description Adj (GND) I 1 Adjustable (Ground only for fixed mode) A resistor divider from this pin to the VOUT pin and ground sets the output voltage (Ground only for Fixed-Mode). VOUT O 2 The output of the regulator. A minimum of 10uF (0.15Ω ≤ ESR ≤ 20Ω) capacitor must be connected from this pin to ground to insure stability. 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. This pin must always be 1.4V (1.3V) higher than VOUT in order for the device to regulate properly. VIN AP1084 Rev. 9 DS31070 I 3 of 11 www.diodes.com JANUARY 2010 © Diodes Incorporated AP1084 5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Block Diagram Vin 3 2 Vout 1 Adj + + - 1.25V + CURRENT LIMIT + - Thermal Shutdown Absolute Maximum Ratings Symbol Parameter VIN TST DC Supply Voltage Storage Temperature TMJ Maximum Junction Temperature Rating Unit -0.3 to 12 -65 to +150 V oC oC 150 Recommended Operating Conditions Symbol TOP AP1084 Rev. 9 DS31070 Parameter Operating Junction Temperature Range 4 of 11 www.diodes.com Min Max Unit 0 125 oC JANUARY 2010 © Diodes Incorporated AP1084 5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Electrical Characteristics Symbol Parameter Reference Voltage AP1084-XXX AP1084-1.5 AP1084-1.8 Line Regulation AP1084-2.5 AP1084-3.3 AP1084-5.0 AP1084-Adj VREF AP1084-1.5 Load Regulation AP1084-1.8 AP1084-2.5 AP1084-3.3 AP1084-5.0 Vo TSD θJA θJC Notes: (Under Operating Conditions) Conditions o Io = 10mA, TA = 25 C, (VIN-VOUT) = 1.5V Min Typ. Max Unit 1.225 1.250 1.275 V 1.470 1.764 2.450 3.235 4.900 1.500 1.800 2.500 3.300 5.000 0.2 1.530 1.836 2.550 3.365 5.100 1 % V V V V V % 12 15 mV 15 18 mV 20 25 mV 26 33 mV 40 50 mV 1.3 1.4 V o IO = 10mA, VOUT+1.5V