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Electrical Characteristics

Electrical Characteristics

TL780 SERIES

POSITIVE-VOLTAGE REGULATORS

SLVS055M – APRIL 1981 – REVISED OCTOBER 2006

at specified virtual junction temperature, V

I = 19 V, IO = 500 mA (unless otherwise noted)

TL780-12C

PARAMETER

TEST CONDITIONS

TJ(1)

UNIT

MIN

TYP

MAX

25

°C

11.88

12

12.12

IO = 5 mA to 1 A, P ≤ 15 W,

Output voltage

V

VI = 14.5 V to 27 V

0

°C to 125°C

11.76

12.24

VI = 14.5 V to 30 V

1.2

12

Input voltage regulation

25

°C

mV

VI = 16 V to 22 V

1.2

12

Ripple rejection

VI = 15 V to 25 V, f = 120 Hz

0

°C to 125°C

65

80

dB

IO = 5 mA to 1.5 A

6.5

60

Output voltage regulation

25

°C

mV

IO = 250 mA to 750 mA

2.5

36

Output resistance

f = 1 kHz

0

°C to 125°C

0.0035

Ω

Temperature coefficient of

IO = 5 mA

0

°C to 125°C

0.6

mV/

°C

output voltage

Output noise voltage

f = 10 Hz to 100 kHz

25

°C

180

µV

Dropout voltage

IO = 1 A

25

°C

2

V

Input bias current

25

°C

5.5

8

mA

VI = 14.5 V to 30 V

0.4

1.3

Input bias-current change

0

°C to 125°C

mA

IO = 5 mA to 1 A

0.03

0.5

Short-circuit output current

25

°C

350

mA

Peak output current

25

°C

2.2

A

(1)

Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be

taken into account separately. All characteristics are measured with a 0.33-

µF capacitor across the input and a 0.22-µF capacitor across

the output.

at specified virtual junction temperature, V

I = 23 V, IO = 500 mA (unless otherwise noted)

TL780-15C

PARAMETER

TEST CONDITIONS

TJ(1)

UNIT

MIN

TYP

MAX

25

°C

14.85

15

15.15

IO = 5 mA to 1 A, P ≤ 15 W,

Output voltage

V

VI = 17.5 V to 30 V

0

°C to 125°C

14.7

15.3

VI = 17.5 V to 30 V

1.5

15

Input voltage regulation

25

°C

mV

VI = 20 V to 26 V

1.5

15

Ripple rejection

VI = 18.5 V to 28.5 V, f = 120 Hz

0

°C to 125°C

60

75

dB

IO = 5 mA to 1.5 A

7

75

Output voltage regulation

25

°C

mV

IO = 250 mA to 750 mA

2.5

45

Output resistance

f = 1 kHz

0

°C to 125°C

0.0035

Ω

Temperature coefficient of

IO = 5 mA

0

°C to 125°C

0.62

mV/

°C

output voltage

Output noise voltage

f = 10 Hz to 100 kHz

25

°C

225

µV

Dropout voltage

IO = 1 A

25

°C

2

V

Input bias current

25

°C

5.5

8

mA

VI = 17.5 V to 30 V

0.4

1.3

Input bias-current change

0

°C to 125°C

mA

IO = 5 mA to 1 A

0.02

0.5

Short-circuit output current

25

°C

230

mA

Peak output current

25

°C

2.2

A

(1)

Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be

taken into account separately. All characteristics are measured with a 0.33-

µF capacitor across the input and a 0.22-µF capacitor across

the output.

4

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