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LM340, LM340A, LM7805, LM7812, LM7815

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SNOSBT0L – FEBRUARY 2000 – REVISED SEPTEMBER 2016

Product Folder Links: LM340 LM340A LM7805 LM7812 LM7815

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Copyright © 2000–2016, Texas Instruments Incorporated

(1)

All characteristics are measured with a 0.22-μF capacitor from input to ground and a 0.1-μF capacitor from output to ground. All

characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%).

Output voltage changes due to changes in internal temperature must be taken into account separately.

6.5 LM340A Electrical Characteristics,

VO = 5 V, VI = 10 V

IOUT = 1 A, 0°C ≤ TJ ≤ 125°C (LM340A) unless otherwise specified

(1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VO

Output voltage

TJ = 25°C

4.9

5

5.1

V

PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A

7.5 V

≤ VIN ≤ 20 V

4.8

5.2

V

ΔVO

Line regulation

7.5 V

≤ VIN ≤ 20

V

TJ = 25°C

3

10

mV

Over temperature, IO = 500 mA

10

mV

8 V

≤ VIN ≤ 12 V

TJ = 25°C

4

mV

Over temperature

12

mV

ΔVO

Load regulation

TJ = 25°C

5 mA

≤ IO ≤ 1.5 A

10

25

mV

250 mA

≤ IO ≤ 750 mA

15

mV

Over temperature, 5 mA

≤ IO ≤ 1 A

25

mV

IQ

Quiescent current

TJ = 25°C

6

mA

Over temperature

6.5

mA

ΔIQ

Quiescent current

change

TJ = 25°C, IO = 1 A

7.5 V

≤ VIN ≤ 20 V

0.8

mA

Over temperature, 5 mA

≤ IO ≤ 1 A

0.5

mA

Over temperature, IO = 500 mA

8 V

≤ VIN ≤ 25 V

0.8

mA

VN

Output noise voltage

TA = 25°C, 10 Hz ≤ f ≤ 100 kHz

40

μV

Ripple rejection

f = 120 Hz

8 V

≤ VIN ≤ 18

V

TJ = 25°C, , IO = 1 A

68

80

dB

Over temperature, IO = 500 mA

68

dB

RO

Dropout voltage

TJ = 25°C, IO = 1 A

2

V

Output resistance

f = 1 kHz

8

mΩ

Short-circuit current

TJ = 25°C

2.1

A

Peak output current

TJ = 25°C

2.4

A

Average TC of VO

Min, TJ = 0°C, IO = 5 mA

−0.6

mV/°C

VIN

Input voltage required to

maintain line regulation

TJ = 25°C

7.5

V