Details, datasheet, quote on part number: KA78TXX
PartKA78TXX
CategoryPower Management => Regulators => Linear Regulators => Positive => Low Current
Description3-terminal 3a Positive Voltage Regulator
CompanyFairchild Semiconductor
DatasheetDownload KA78TXX datasheet
  

 

Features, Applications

Features

Output current in excess of 3.0A Output transistor safe operating area compensation Power dissipation :25W Internal short circuit current limiting Internal thermal overload protection Output voltage offered in 4% tolerance No external components required Output voltage 5, 12 and 15V

Description

This family of fixed voltage regulators are monolithic integrated circuit capable of driving loads in excess 3.0 A.

Parameter Input Voltage (for to 12V) (for = 15V) Power Dissipation Thermal Resistance, Junction to Air +25 °C Thermal Resistance ,Junction to Case Operating Junction Temperature Range Storage Temperature Range Symbol VI PD RJA RJC TJ TSTG Value 35 40 Internally limited Unit V °C/W °C

(VI TJ +125 °C, Po PMAX , unless otherwise specified.) Parameter Output Voltage Symbol Vo Conditions Io 3.0A Pulse = 3A ,TJ = +25 °C, = 5.0mA Min. 4.8 4.75 Typ. Max. Unit V

Load Regulation (Note1) Thermal Regulation Quiescent Current Quiescent Current Change Ripple Rejection Dropout Voltage Output Noise Voltage Peak Output Current Output Resistance Short Circuit Current Limit Average Temperature Coefficient of Output Voltage

Note: 1. Load and line regulation are specified at constant junction temperature. Change in Vo due heating effects must be taken into account separately. Pulse testing with low duty is used.( PMAX = 25W)

(VI TJ +125 °C, Po PMAX , unless otherwise specified.) Parameter Output Voltage Symbol Vo Conditions Io 3.0A Pulse = 3A ,TJ TA =+25 °C, = 5.0mA Min. 11.5 11.4 Typ. Max. Unit V

Note: 1. Load and line regulation are specified at constant junction temperature. Change in Vo due heating effects must be taken into account separately. Pulse testing with low duty is used. ( PMAX = 25W)


 

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