LM340-MIL datasheet(6/22 Pages) TI1

Part #	LM340-MIL

Description	Wide VIN 1.5-A Fixed Voltage Regulator

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LM340-MIL

SNOSD64 – JUNE 2017

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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.

6.6 Electrical Characteristics: VO = 12 V, VI = 19 V

0°C

≤ TJ ≤ 125°C unless otherwise specified

(1)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VO

Output voltage

TJ = 25°C, 5 mA ≤ IO ≤ 1 A

11.5

12

12.5

V

PD ≤ 15 W, 5 mA ≤ IO ≤ 1 A

14.5 V

≤ VIN ≤ 27 V

11.4

12.6

V

ΔVO

Line regulation

IO = 500 mA

TJ = 25°C

14.5V

≤ VIN ≤ 30V

4

120

mV

Over temperature

15V

≤ VIN ≤ 27V

120

mV

IO ≤ 1 A

TJ = 25°C

14.6V

≤ VIN ≤ 27V

120

mV

Over temperature

16V

≤ VIN ≤ 22V

60

mV

ΔVO

Load regulation

TJ = 25°C

5 mA

≤ IO ≤ 1.5 A

12

120

mV

250 mA

≤ IO ≤ 750 mA

60

mV

Over temperature, 5 mA

≤ IO ≤ 1 A

120

mV

IQ

Quiescent current

IO ≤ 1 A

TJ = 25°C

8

mA

Over temperature

8.5

mA

ΔIQ

Quiescent current change

5 mA

≤ IO ≤ 1 A

0.5

mA

TJ = 25°C, IO ≤ 1 A

14.8 V

≤ VIN ≤ 27 V

1

mA

Over temperature, IO ≤ 500 mA

14.5 V

≤ VIN ≤ 30 V

1

mA

VN

Output noise voltage

TA = 25°C, 10 Hz ≤ f ≤ 100 kHz

75

μV

Ripple rejection

f = 120 Hz

15 V

≤ VIN ≤ 25

V

TJ = 25°C, IO ≤ 1 A

55

72

dB

Over temperature, IO ≤ 500

mA,

55

dB

RO

Dropout voltage

TJ = 25°C, IO = 1 A

2

V

Output resistance

f = 1 kHz

18

mΩ

Short-circuit current

TJ = 25°C

1.5

A

Peak output current

TJ = 25°C

2.4

A

Average TC of VOUT

Over temperature, IO = 5 mA

−1.5

mV/°C

VIN

Input voltage required to

maintain line regulation

TJ = 25°C, IO ≤ 1 A

14.6

V

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