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UCC383T-5 |UCC383T5UNITRODEN/a20avai3
UCC383TD-ADJ |UCC383TDADJUCN/a30avai3
UCC383TDKTTT-3 |UCC383TDKTTT3UCN/a12avai3
UCC383TD-ADJ |UCC383TDADJUNITRODEN/a51avai3
UCC383T-5 |UCC383T5N/a21avai3
UCC383T-ADJ |UCC383TADJN/a7avai3
UCC383TD-5 |UCC383TD5N/a50avai3
UCC383T-3 |UCC383T3TIN/a59avai3
UCC383T-5 |UCC383T5TIN/a186avai3
UCC383T-ADJ |UCC383TADJTIN/a155avai3
UCC383TD-3 |UCC383TD3TIN/a150avai3
UCC383TD-ADJ |UCC383TDADJTIN/a428avai3
UCC383TDKTTT-5G3 |UCC383TDKTTT5G3TIN/a39avaiLow-Dropout, 3-A, Linear Regulators 3-DDPAK/TO-263 0 to 70
UCC383TDTR-3 |UCC383TDTR3TIN/a310avai3


UCC383TD-ADJ ,3electrical characteristics T = 0°C to 70°C for the UCC383−x series, T = −40°C to 85°C for theA AUCC ..
UCC383TD-ADJ ,3block diagram*5 LEADED VERSION ONLY (ADJ)VINVOUTVPUMPCURRENT LIMITADJ*R24 A/ 7 A CURRENT+REFERENCE+ ..
UCC383TD-ADJ ,3                SLUS ..
UCC383TDKTTT-3 ,3electrical characteristics T = 0°C to 70°C for the UCC383−x series, T = −40°C to 85°C for theA AUCC ..
UCC383TDKTTT-5G3 ,Low-Dropout, 3-A, Linear Regulators 3-DDPAK/TO-263 0 to 70electrical characteristics T = 0°C to 70°C for the UCC383−x series, T = −40°C to 85°C for theA AUCC ..
UCC383TDTR-3 ,3                SLUS ..
UPA80C ,Silicon transistor arrayTRANSISTOR ARRAY ““““““ ~ = ‘ ‘ 1 M ’0 FLUORESCENT INDICATOR PANEL DRIVER PNP-NPN SILICON EP ..
UPA80GR ,Silicon transistor arrayELECTRICAL CHARACTERISTICS (Ta=25 oC) CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT TEST CONDITIONS ..
UPA810T ,NPN silicon high frequency transistor.FEATURESOUTLINE DIMENSIONS (Units in mm)• SMALL PACKAGE STYLE:PACKAGE OUTLINE S062 NE856 Die in a 2 ..
UPA810TC-T1 ,NPN SILICON EPITAXIAL TRANSISTOR WITH BUILT-IN 2 x 2SC5006 FLAT-LEAD 6-PIN THIN-TYPE ULTRA SUPER MINIMOLDDATA SHEETNPN SILICON RF TWIN TRANSISTORμPA810TCNPN SILICON EPITAXIAL TRANSISTOR(WITH BUILT-IN 2 × ..
UPA810T-T1 ,Consumer-use Ultra-high Frequency Bipolar TransistorDATA SHEETNPN SILICON RF TWIN TRANSISTORμPA810TCNPN SILICON EPITAXIAL TRANSISTOR(WITH BUILT-IN 2 × ..
UPA811T ,HIGH-FREQUENCY LOW NOISE AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR WITH BUILT-IN 2 x 2SC4228 SMALL MINI MOLDFEATURES1.25±0.1• Low NoiseNF = 1.9 dB TYP. @ f = 2 GHz, VCE = 1 V, IC = 3 mA• High Gain2|S21e| = 6 ..


UCC383T-3-UCC383T-5-UCC383T-ADJ-UCC383TD-3-UCC383TD-5-UCC383TD-ADJ-UCC383TDKTTT-3-UCC383TDKTTT-5G3-UCC383TDTR-3
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SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004 Precision Positive Linear Series Pass
Voltage Regulation
0.45 V Dropout at 3 A 50 mV Dropout at 10 mA Quiescent Current Under 650 µA
Irrespective of Load
Adjustable (5-Lead) Output Voltage Version Fixed (3-Lead) Versions for 3.3-V and 5-V
Outputs
Logic Shutdown Capability Short-Circuit Power Limit of
(3% × VIN × I SHORT)
Low V OUT to VIN Reverse Leakage Thermal Shutdown

description

The UCC283−3/−5/−ADJ family of positive linear
series pass voltage regulators are tailored for
low-drop-out applications where low quiescent
power is important. Fabricated with a BiCMOS
technology ideally suited for low input-to-output
differential applications, the UCC283−5 passes
3 A while requiring only 0.45 V of typical input
voltage headroom (ensured 0.6-V dropout).
These regulators include reverse voltage sensing that prevents current in the reverse direction. Quiescent
current is always less than 650 µA. These devices have been internally compensated in such a way that the
need for a minimum output capacitor has been eliminated.
UCC283−3 and UCC283−5 versions are in 3-lead packages and have preset outputs at 3.3 V and 5.0 V
respectively. The output voltage is regulated to 1.5% at room temperature. The UCC283−ADJ version, in a
5-lead package, regulates the output voltage programmed by an external resistor ratio.
Short-circuit current is internally limited. The device responds to a sustained overcurrent condition by turning
off after a tON time delay. The device then stays off for a period, t OFF , that is 32 times the tON delay. The device
then begins pulsing on and off at the tON/(tON+t OFF ) duty cycle of 3%. This drastically reduces the power
dissipation during short-circuit and means heat sinks need only accommodate normal operation. On the
3-leaded versions of the device tON is fixed at 750 µs, on the adjustable 5-leaded versions an external capacitor
sets the on time. The off time is always 32 × tON . The external timing control pin, CT , on the 5-leaded versions
also serves as a shutdown input when pulled low.
Internal power dissipation is further controlled with thermal overload protection circuitry. Thermal shutdown
occurs if the junction temperature exceeds 165°C. The chip remains off until the temperature has dropped 20°C.
The UCC283 series is specified for operation over the industrial range of −40°C to 85°C, and the UCC383 series
is specified from 0°C to 70°C. These devices are available in 3- and 5-pin TO−220 and TO−263 power packages.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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