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KSC945 ,NPN (AUDIO/ HIGH FREQUENCY AMPLIFIER/ OSC.)
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KD1083V
7.5A LOW DROP POSITIVE VOLTAGE REGIULATOR ADJUSTABLE AND FIXED
1/11October 2002 THREE TERMINAL ADJUSTABLE OR FIXED
OUTPUT VOLTAGE 1.5V,1.8V, 2.5V, 3.0, 3.3V OUTPUT CURRENT UP TO 7.5A 1.4V MAX DROPOUT VOLTAGEAT FULL
LOAD LINE REGULATION: MAX 0.2% OVER FULL
TEMPERATURE RANGE LOAD REGULATION: MAX 0.5% OVER FULL
TEMPERATURE RANGE OUTPUT CURRENT LIMIT THERMAL SHUTDOWN PROTECTION
WITH HYSTERESIS WIDE OPERATING TEMPERATURE RANGE
-40°C TO 125°C PINOUT COMPATIBILITY WITH STANDARD
ADJUSTABLE VREG
DESCRIPTIONThe KD1083isa low drop linear voltage regulator,
proposed bothin adjustable and fixed version and
designed for usein applications requiring output
currents up to 7.5A. Dropout voltage is
guaranteed not to exceed 1.4V at maximum
output current while it decreases at
lighter loads. The KD1083 also features an
on-chip output current limit function anda thermal
shutdown protection with hysteresis, preventing
from excessive power dissipationin case of
insufficient heatsinking. The KD1083is fully pinto
pin compatible with the older 3-terminal adjustable
regulators, butit has better performancesin terms drop and output voltage precision. chip trimming allows the regulatorto reacha
very tight output voltage tolerance, within ±2%at
25°C and 2% over the full temperature range.
Unlike voltage regulators usinga PNP transistor series pass elementin whicha considerable
fraction of the output current is wasted as
quiescent current, the LD1083 quiescent current
flows almost entirely into the load, improving the
efficiency.
Onlya 10μF minimum capacitoris required for
output stability.
KD10837.5A LOW DROP POSITIVE VOLTAGE REGULATOR
ADJUSTABLE AND FIXED
SCHEMATIC DIAGRAM
PRELIMINARY DATA
KD10832/11
ABSOLUTE MAXIMUM RATINGSAbsoluteMaximum Ratingsare those values beyond which damagetothe device may occur. Functional operation under these conditionis
not implied.
THERMAL DATA
CONNECTION DIAGRAM (top view)
ORDERING CODES(*) Availablein Tape& Reel withthe suffix"R"for fixed versionand "-R"for adjustable version.
TYPICAL APPLICATION CIRCUITS
KD10833/11
ELECTRICAL CHARACTERISTICS OF KD1083(VIN =3V,CI =CO =10μF,Tj= -40to 125°C, unless
otherwise specified.)
NOTE1: See short-circuit current curvefor available output currentat fixed dropout.
ELECTRICAL CHARACTERISTICS OF KD1083#15 (VIN=3.25V,CI =CO =10μF,Tj= -40to 125°C,
unless otherwise specified.)
NOTE1: See short-circuit current curvefor available output currentat fixed dropout.
KD10834/11
ELECTRICAL CHARACTERISTICS OF KD1083#18(VIN =3.5V,CI =CO =10μF,Tj= -40to 125°C, unless
otherwise specified.)
NOTE1: See short-circuit current curvefor available output currentat fixed dropout.
ELECTRICAL CHARACTERISTICS OF KD1083#25(VIN =4.25V,CI =CO =10μF,Tj= -40to 125°C,
unless otherwise specified.)
NOTE1: See short-circuit current curvefor available output currentat fixed dropout.
KD10835/11
ELECTRICAL CHARACTERISTICS OF KD1083#30(VIN =4.75V,CI =CO =10μF,Tj= -40to 125°C,
unless otherwise specified.)
NOTE1: See short-circuit current curvefor available output currentat fixed dropout.
ELECTRICAL CHARACTERISTICS OF KD1083#33(VIN =5.0V,CI =CO =10μF,Tj= -40to 125°C, unless
otherwise specified.)
NOTE1: See short-circuit current curvefor available output currentat fixed dropout.
KD10836/11
TYPICAL CHARACTERISTICS(CI=CO =10μF(tantalum), unless otherwise specified)
Figure1: Reference Voltagevs Temperature
Figure2: Reference Voltagevs Temperature
Figure3: Reference Voltagevs Temperature
Figure4: Line Regulationvs Temperature
Figure5: Load Regulationvs Temperature
Figure6: Dropout Voltagevs Temperature
