Details, datasheet, quote on part number: KA78R15C
CategoryPower Management => Regulators => Linear Regulators => LDO (Low Drop Out)
Description1A Fixed 15V Low Dropout Voltage Regulator (LDO)
CompanyFairchild Semiconductor
DatasheetDownload KA78R15C datasheet
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Features, Applications


12V, 15V output low dropout voltage regulator TO-220 full-mold package (4pin) Overcurrent protection, thermal shutdown Overvoltage protection, short circuit protection With output disable function


The is a low-dropout voltage regulator suitable for various electronic equipments. It provides constant voltage power source with TO-220-4 lead full mold package. Dropout voltage KA78RXXC is below 0.5V in full rated current(1A). This regulator has various functions such as peak current protection, thermal shut down, overvoltage protection and output disable function.

Parameter Input voltage Disable voltage Output current Power dissipation 1 Power dissipation 2 Junction temperature Operating temperature Thermal resistance, junction-to case (Note2) Thermal resistance, junction-to-air (Note2) Symbol Vin Vdis Pd2 Tj Topr Rjc Rja Value Unit C C/W Remark No heatsink With heatsink -

(Vin = 25C, unless otherwise specified) Parameter KA78R33C KA78R05C Output voltage KA78R12C KA78R15C Load regulation Line regulation Ripple rejection ratio Dropout voltage Disable voltage high Disable voltage low Disable bias current high Disable bias current low Quiescent current Rload Rline RR Vdrop VdisH VdisL IdisH IdisL = 1A Output active Output disabled Vdis = 2.7V Vdis 0A Vo Symbol Conditions < 1A Min. Typ. Max. mA V Unit

Note: 1.These parameters, although guaranteed, are not 100% tested in production. 2. Junction -to -case thermal resistance test environments. Pneumatic heat sink fixture. Clamping pressure 60psi through 12mm diameter cylinder. Thermal grease applied between PKG and heat sink fixture. 3. KA78R33C :Vin KA78R05C : Vin KA78R08C : Vin KA78R09C : Vin KA78R12C : Vin KA78R15C : Vin 4. KA78R33C :Vin KA78R05C : Vin KA78R08C : Vin KA78R09C : Vin KA78R12C : Vin KA78R15C : Vin to 30V


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