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LP2954, LP2954A

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SNVS096E – JUNE 1999 – REVISED JULY 2016

Product Folder Links: LP2954 LP2954A

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Copyright © 1999–2016, Texas Instruments Incorporated

(1)

When used in dual-supply systems where the regulator load is returned to a negative supply, the output voltage must be diode-clamped

to ground.

(2)

Output voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature range.

(3)

Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested separately for load

regulation in the load ranges 0.1 mA to 1 mA and 1 mAto 250 mA. Changes in output voltage due to heating effects are covered by the

thermal regulation specification.

(4)

Dropout voltage is defined as the input-to-output differential at which the output voltage drops 100 mV below the value measured with a

1-V differential.

(5)

GND pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus the GND

pin current.

6.5 Electrical Characteristics

Limits are specified by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods.

PARAMETER

TEST CONDITIONS

LP2954AI

LP2954I

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

4.975

5

5.025

4.95

5

5.05

V

−40°C to 125°C

4.94

5.06

4.9

5.1

1 mA

5

5

1 mA

−40°C to 125°C

4.93

5.07

4.88

5.12

Output voltage temperature

coefficient

20

100

20

150 ppm/°C

Line regulation

0.03%

0.1%

0.03%

0.2%

–40°C

0.2%

0.3%

Load regulation

(3)

0.04%

0.16%

0.04%

0.2%

–40°C

0.2%

0.3%

60

100

60

100

mV

–40°C

150

150

240

300

240

300

–40°C

420

420

310

400

310

400

–40°C

520

520

470

600

470

600

–40°C

800

800

90

150

90

150

µA

–40°C

180

180

1.1

2

1.1

2

mA

–40°C

2.5

2.5

4.5

6

4.5

6

–40°C

8

8

21

28

21

28

–40°C

33

33

Ground pin current at

120

170

120

170

µA

–40°C

210

210