MC78T15CT datasheet(2/8 Pages) FAIRCHILD

부품명	MC78T15CT

상세설명	3-Terminal 3A Positive Voltage Regulator

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제조업체	FAIRCHILD [Fairchild Semiconductor]

홈페이지	http://www.fairchildsemi.com

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MC78TXX

2

Absolute Maximum Ratings

Note:

1. Thermal resistance test board

Size: 76.2mm * 114.3mm * 1.6mm(1S0P)

JEDEC standard: JESD51-3, JESD51-7

2. Assume no ambient airflow.

Electrical Characteristics(MC78T05)

(VI = 10V, IO = 3.0 A, 0

°C ≤ TJ ≤ +125°C, Po ≤ PMAX (Note3), unless otherwise specified. )

Note:

3. Although power dissipation is internally limited, specifications apply only for PO

≤ Pmax, Pmax = 25W

4. 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.

Parameter

Symbol

Value

Unit

Input Voltage (for VO = 5V to 12V)

(for VO = 15V)

VI

35

40

V

Power Dissipation

PD

Internally limited

Thermal Resistance, Junction to Air (Note1, 2)

Ta = +25

°C

R

θJA

65

°C/W

Thermal Resistance, Junction to Case (Note1)

Tc = +25

°C

R

θJC

2.5

°C/W

Operating Junction Temperature Range

TJ

0 ~ +125

°C

Storage Temperature Range

TSTG

-65 ~ +150

°C

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Output Voltage

Vo

5mA

≤≤≤≤ Io ≤≤≤≤ 3.0A , TJ = +25°C

7.3V

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

4.8

4.75

5.0

5.2

5.25

V

Line Regulation (Note4)

∆VO

7.2V

≤≤≤≤ VI ≤≤≤≤ 35V , Io=5mA, TJ =+25°C

7.2V

≤≤≤≤ VI ≤≤≤≤ 35V , Io=1.0A, TJ = +25°C

7.5V

≤≤≤≤ VI ≤≤≤≤ 20V, Io =2.0A, TJ = +25°C

8.0V

≤≤≤≤ VI ≤≤≤≤ 12V, Io =3.0A, TJ = +25°C

-3.0

25

mV

Load Regulation (Note4)

∆VO

5mA

≤ Io ≤ 3.0A , TJ = +25°C

5mA

≤ Io ≤ 3.0A

-

10

15

30

80

mV

Thermal Regulation

REGT

Pulse =10ms, P = 20W

TA = +25

°C

-

0.002

0.03

%Vo/W

Quiescent Current

IQ

5mA

≤ Io ≤ 3.0A , TJ = +25°C

5mA

≤ Io ≤ 3.0A

-

3.5

4.0

5.0

6.0

mA

Quiescent Current Change

∆IQ

7.2V

≤ VI ≤ 35V, Io = 5mA

TJ = +25

°C ;

7.5V

≤ VI ≤ 20V, Io =2.0A ;

5mA

≤ Io ≤ 3.0A, TJ = +25°C

-0.1

0.8

mA

Ripple Rejection

RR

f = 120Hz, 8V

≤ VI ≤ 18V, Io = 2.0A

TJ = +25

°C

-75

-

dB

Dropout Voltage

VD

Io = 3A ,TJ = +25

°C-

2.2

2.5

V

Output Noise Voltage

VN

TA = +25

°C, 10Hz ≤ f ≤ 100kHz

-

10

-

µV/Vo

Peak Output Current

IPK

TA = +25

°C-

5.0

-

A

Output Resistance

Ro

f = 1.0kHz

-

2.0

-

m

Ω

Short Circuit Current Limit

Isc

VI = 35V, TJ =+25

°C-

1.5

2.5

A

Average Temperature

Coefficient of Output Voltage

∆VO/∆T Io = 5.0mA

-

0.2

-

mV/

°C

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