KA78TXX

2

Absolute Maximum Ratings

Electrical Characteristics(KA78T05)

Note:

1. Load and line regulation are specified at constant junction temperature. Change in Vo due heating effects must be taken into

Parameter

Symbol

Value

Unit

35

40

V

V

Power Dissipation

PD

Internally limited

-

Thermal Resistance, Junction to Air

Tc = +25

°C

R

θJA

65

°C/W

Thermal Resistance ,Junction to Case

R

θJC

2.5

°C/W

Operating Junction Temperature Range

0 ~ +150

°C

Storage Temperature Range

-65 ~ +150

°C

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Output Voltage

Vo

5mA

7.3V

≤≤≤≤ VI ≤≤≤≤ 20V, 5mA ≤≤≤≤ Io ≤≤≤≤ 2.0A

4.8

4.75

5.0

5.0

5.2

5.25

V

Line Regulation (Note1)

7.2V

7.2V

7.5V

≤≤≤≤ VI ≤≤≤≤ 20V, Io =2.0A

8.0V

≤≤≤≤ VI ≤≤≤≤ 12V, Io =3.0A

-3.0

2.5

mV

Load Regulation (Note1)

5mA

5mA

≤ Io ≤ 3.0A

-

10

15

30

80

mV

mV

Thermal Regulation

Pulse =10ms, P = 20W

TA = +25

°C

-

0.002

0.03

%Vo/W

Quiescent Current

5mA

5mA

≤ Io ≤ 3.0A

-

3.5

4.0

5.0

6.0

mA

mA

Quiescent Current

Change

7.2V

≤ VI ≤ 35V, Io = 5mA

°C ;

7.5V

≤ VI ≤ 20V, Io =2.0A ;

5mA

≤ Io ≤ 3.0A

-0.1

0.8

mA

Ripple Rejection

RR

f = 120Hz, 8V

-

75

-

dB

Dropout Voltage

°C-

2.2

2.5

V

Output Noise Voltage

°C, 10Hz ≤ f ≤ 100KHz

-

10

-

µV/Vo

Peak Output Current

°C-

5.0

-

A

Output Resistance

Ro

f = 1.0kHz

-

2.0

-

m

Ω

Short Circuit Current Limit

Isc

°C-

1.5

2.5

A

Average Temperature

Coefficient of Output

Voltage

-

0.2

-

mV/

°C