CYStech Electronics Corp. Spec. No. : C512F3 Issued Date : 2003.04.03 Revised Date : Page No. : 1/4 5A Low Dropout Positive Voltage Regulator PL1084-XXXF3 Features Dropout Voltage 1.3V at 5A Output Current. Fast Transient Response. Extremely Tight Line and Load Regulation. Current Limiting and Thermal Protection. Adjustable Output Voltage or Fixed 1.5V,2.5V,2.85V,3.0V,3.3V,3.5V,5.0V. Standard 3-Pin Power Packages. TO-263 Description The PL1084-XXXF3 is a low dropout three terminal regulator with 5A output current capability. The output voltage is adjustable with the use of a resistor divider or fixed 1.5V, 2.5V, 2.85V,3.0V, 3.3V, 3.5V and 5.0V. Dropout voltage is guaranteed to be at maximum of 1.2V with the maximum output current. Its low dropout voltage and fast transient response make it ideal for low voltage microprocessor applications. Current limit and thermal protection provide protection against any overload condition that would create excessive junction temperatures. Applications Mother Board I/O Power Supplies. Microprocessor Power Supplies. High Current Regulator. Post Regulator for Switching Supply. Typical Application Circuit Vin=5V Vout=3.3V 3 PL1084-Adj 2 VREF 1 ADJ C1 10μF R1 125Ω 1% C2 10μF R2 205Ω 1% Adjustable Voltage Regulator Vin=5V 3 2 Vout=3.3V PL1084-3.3 C1 10μF C2 10μF 1 Fixed Voltage Regulator PL1084F3 CYStek Product Specification CYStech Electronics Corp. Spec. No. : C512F3 Issued Date : 2003.04.03 Revised Date : Page No. : 2/4 Ordering Information Device PL1084-AdjF3 PL1084-1.5F3 PL1084-2.5F3 PL1084-2.85F3 PL1084-3.0F3 PL1084-3.3F3 PL1084-3.5F3 PL1084-5.0F3 Output Voltage Adjustable 1.5V 2.5V 2.85V 3.0V 3.3V 3.5V 5.0V Absolute Maximum Ratings VIN pin to ADJ/GND pin ……………………………………………………………………………………………….7V Operating Junction Temperature Range ………………………………………………………………………0°C~ 125°C Storage Temperature Range………………………………………………………………………………..- 65°C ~ 150°C Thermal Resistance Junction to Case ……………………………………………………………………………… 3°C /W Thermal Resistance Junction to Ambient (Assume no ambient airflow, no heatsink) …………………………… 60°C /W Lead Temperature (Soldering) 10 sec. ……………………………………………………………………………….260°C Electrical Characteristics (Vin=5V, Io=10mA,Tj=25℃, unless otherwise noted) Symbol VREF Parameter Reference Voltage Conditions Tj=25°C PL1084-1.5 PL1084-2.5 PL1084-2.85 PL1084-3.0 PL1084-3.3 PL1084-3.5 PL1084-5.0 Adj: 2.65V≤Vin≤7V Fix: Vout+1.4V≤Vin≤7V 10mA≤Io≤5A Vin-Vout=3V Vo Output Voltage ∆Vo Line Regulation ∆Vo Is IAdj Load Regulation Current Limit Adjust Pin Current 2.65V≤Vin≤7V Adjust Pin Current 2.65V≤Vin≤7V, 0°C≤Tj≤125°C Change Temperature Stability Io=0.5A, 0°C≤Tj≤125°C Minimum Load Current 0°C≤Tj≤125°C RMS Output Noise(% of 10Hz≤f≤10KHz Vout) Vin-Vout=3V, f=120Hz, Ripple Rejection Ratio Cout=25μF ∆IAdj Ts IL VN RR VD PL1084F3 Dropout Voltage ∆Vout,∆VREF=1%, 10mA≤Io≤5A 0°C≤Tj≤125°C Min Typ Max Units 1.238 1.48 2.47 2.82 2.97 3.26 3.46 4.95 1.250 1.50 2.50 2.85 3.00 3.30 3.50 5.00 1.262 1.52 2.53 2.88 3.03 3.34 3.54 5.05 V - 0.015 0.2 % 5.5 - 6.8 55 0.4 120 % A μA - 0.2 5 μA - 0.5 5 10 % mA - 0.003 - % 60 72 - dB - 1.2 1.3 V V CYStek Product Specification CYStech Electronics Corp. Spec. No. : C512F3 Issued Date : 2003.04.03 Revised Date : Page No. : 3/4 Block Diagram VIN Current Amp. VREF 1.25V Thermal Limit Current Limit VOUT 55μA For fixed voltage device ADJ PL1084F3 GND CYStek Product Specification CYStech Electronics Corp. Spec. No. : C512F3 Issued Date : 2003.04.03 Revised Date : Page No. : 4/4 TO-263 Dimension Marking : 1084-XXX B D 2 F α1 2 1 E C A α2 Style : Pin 1.ADJ(GND) 2.Vout(TAB) 3 I 3.Vin G J K L α3 H 3-Lead Plastic Surface Mounted Package CYStek Package Code : F3 *:Typical Inches Min. Max. 0.3800 0.4050 0.3300 0.3700 0.0550 0.5750 0.6250 0.1600 0.1900 0.0450 0.0550 0.0900 0.1100 0.0180 0.0290 DIM A B C D E F G H Millimeters Min. Max. 9.65 10.29 8.38 9.40 1.40 14.61 15.88 4.06 4.83 1.14 1.40 2.29 2.79 0.46 0.74 DIM I J K L α1 α2 α3 Inches Min. Max. 0.0500 0.0700 *0.1000 0.0450 0.0550 0.0200 0.0390 - Millimeters Min. Max. 1.27 1.78 *2.54 1.14 1.40 0.51 0.99 6° 8° 6° 8° 0° 5° Notes : 1.Controlling dimension : millimeters. 2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material. 3.If there is any question with packing specification or packing method, please contact your local CYStek sales office. Material : • Lead : 42 Alloy ; solder plating • Mold Compound : Epoxy resin family, flammability solid burning class:UL94V-0 Important Notice: • All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek. • CYStek reserves the right to make changes to its products without notice. • CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems. • CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance. PL1084F3 CYStek Product Specification