CYStech Electronics Corp.
5A Low Dropout Positive Voltage Regulator
Spec. No. : C512E3 Issued Date : 2003.03.25 Revised Date : Page No. : 1/4
PL1084-XXXE3
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-220AB
Description
The PL1084-XXXE3 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 3 Vout=3.3V 2
PL1084-Adj
VREF 1 C1 10μF ADJ
R1 125Ω 1% R2 205Ω 1%
C2 10μF
Adjustable Voltage Regulator
Vin=5V 3 2 Vout=3.3V
PL1084-3.3
C1 10μF 1 C2 10μF
Fixed Voltage Regulator
PL1084E3 CYStek Product Specification
CYStech Electronics Corp.
Ordering Information
Device PL1084-AdjE3 PL1084-1.5E3 PL1084-2.5E3 PL1084-2.85E3 PL1084-3.0E3 PL1084-3.3E3 PL1084-3.5E3 PL1084-5.0E3 Output Voltage Adjustable 1.5V 2.5V 2.85V 3.0V 3.3V 3.5V 5.0V
Spec. No. : C512E3 Issued Date : 2003.03.25 Revised Date : Page No. : 2/4
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) …………………………… 50°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 Output 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 Min 1.238 1.48 2.47 2.82 2.97 3.26 3.46 4.95 5.5 60 Typ 1.250 1.50 2.50 2.85 3.00 3.30 3.50 5.00 0.015 6.8 55 0.2 0.5 5 0.003 72 1.2 Max 1.262 1.52 2.53 2.88 3.03 3.34 3.54 5.05 0.2 0.4 120 5 10 1.3 Units V
Vo
V
∆Vo ∆Vo Is IAdj ∆IAdj Ts IL VN RR VD
Line Regulation
% % A μA μA % mA % dB V
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 Dropout Voltage ∆Vout,∆VREF=1%, 10mA≤Io≤5A 0°C≤Tj≤125°C
PL1084E3
CYStek Product Specification
CYStech Electronics Corp.
Block Diagram
Spec. No. : C512E3 Issued Date : 2003.03.25 Revised Date : Page No. : 3/4
VIN
Current Amp. VREF 1.25V Thermal Limit Current Limit VOUT 55μA
For fixed voltage device
ADJ
GND
PL1084E3
CYStek Product Specification
CYStech Electronics Corp.
TO-220AB Dimension
Spec. No. : C512E3 Issued Date : 2003.03.25 Revised Date : Page No. : 4/4
A D
B E C
Marking:
1084-XXX
H I G 4 P M 3 2 1 N
Style: Pin 1.Adj/Gnd 2.Vout3.Vin 4 Vout
K
O
3-Lead TO-220AB Plastic Package CYStek Package Code: E3
*: Typical
DIM A B C D E G H
Inches Min. Max. 0.2197 0.2949 0.3299 0.3504 0.1732 0.185 0.0453 0.0547 0.0138 0.0236 0.3803 0.4047 *0.6398
Millimeters Min. Max. 5.58 7.49 8.38 8.90 4.40 4.70 1.15 1.39 0.35 0.60 9.66 10.28 *16.25
DIM I K M N O P
Inches Min. Max. *0.1508 0.0295 0.0374 0.0449 0.0551 *0.1000 0.5000 0.5618 0.5701 0.6248
Millimeters Min. Max. *3.83 0.75 0.95 1.14 1.40 *2.54 12.70 14.27 14.48 15.87
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.
PL1084E3
CYStek Product Specification
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