6.7 Electrical Characteristics: UA78L05 (Both Legacy and New Chip) (continued)

at specified junction temperature, VI = 10 V, CIN = 0.33 µF, COUT = 0.1µF and IO = 40 mA (unless otherwise noted)(1)

PARAMETER

TEST CONDITIONS(2)

MIN

TYP

MAX

UNIT

Bias current

for legacy chip

TJ = 25°C

3.8

6

mA

TJ = 125°C

5.5

mA

for new chip

TJ = 25°C

3.53

3.95

mA

TJ = 125°C

4.0

Bias current change

VI = 8 V to 20 V, and TJ = full range (for new legacy chip)

1.5

mA

IO = 1 mA to 40 mA, and

TJ = full range (for legacy chip)

UA78L05C

1.5

mA

UA78L05AC and UA78L05AI

1.5

mA

VI = 8 V to 20 V, and TJ = full range (for new chip)

0.485

mA

IO = 1 mA to 40 mA, and

TJ = full range (for new chip)

UA78L05C

0.01

UA78L05AC and UA78L05AI

0.01

(1)

Applies to UA78L05C, UA78L05AC and UA78L05AI.

(2)

Pulse-testing techniques maintain TJ as close to TA as possible. Thermal effects must be taken into account separately. For legacy

chip, temperature range for the UA78L05C, UA78L05AC is TJ = 0°C to 125°C, and for the UA78L05AI is TJ = –40°C to 125°C. For new

chip, temperature range for the UA78L05C, UA78L05AC and UA78L05AI is TJ = –40°C to 125°C.

6.8 Electrical Characteristics: UA78L12 (Both Legacy and New Chip)

at specified junction temperature, VI = 19 V, CIN = 0.33 µF, COUT = 0.1µF and IO = 40 mA (unless otherwise noted)(1)

PARAMETER

TEST CONDITIONS(2)

MIN

TYP

MAX

UNIT

Output voltage

VI = 14 V to 27 V, and IO

= 1 mA to 40 mA

TJ = 25°C

UA78L12C (legacy

chip)

11.1

12

12.9

V

UA78L12AC (legacy

chip)

11.5

12

12.5

TJ = 0°C to 125°C

UA78L12C (legacy

chip)

10.8

13.2

UA78L12AC (legacy

chip)

11.4

12.6

TJ = 0°C to 125°C, and IO = 1 mA to 70 mA

UA78L12C (legacy

chip)

10.8

13.2

UA78L12AC (legacy

chip)

11.4

12.6

VI = 14 V to 27 V, and IO

= 1 mA to 40 mA

TJ = 25°C

UA78L12C (new

chip)

11.83

12

12.31

UA78L12AC (new

chip)

TJ = -40°C to 125°C

UA78L12C (new

chip)

11.65

12.35

UA78L12AC (new

chip)

TJ = -40°C to 125°C, and IO = 1 mA to 70 mA

UA78L12C (new

chip)

11.47

12.35

UA78L12AC (new

chip)

Input voltage regulation

TJ = 25°C

VI = 14.5 V to 27 V

for legacy chip

55

250

mV

VI = 16 V to 27 V

49

200

VI = 14.0 V to 27 V

for new chip

55

80

VI = 16 V to 27 V

49

65

Ripple rejection

TJ = 25°C

VI = 15 V to 25 V, and f =

120 Hz

UA78L12C (legacy

chip)

36

42

dB

UA78L12AC (legacy

chip)

37

42

UA78L12C (new

chip)

40

50

UA78L12AC (new

chip)

www.ti.com

UA78L

SLVS010X – JANUARY 1976 – REVISED JUNE 2023

Copyright © 2023 Texas Instruments Incorporated

Submit Document Feedback

7

Product Folder Links: UA78L