LP3871, LP3874

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SNVS225H – FEBRUARY 2003 – REVISED JUNE 2015

6.5 Electrical Characteristics

PARAMETER

TEST CONDITIONS

UNIT

–1.5%

0%

1.5%

–3%

3%

–40°C

0.02%

0.06%

10 mA

0.04%

10 mA

0.1%

24

35

40

mV

240

300

350

5

9

10

Ground pin current in normal

mA

operation mode

6

14

15

Ground pin current in shutdown

0.01

10

µA

mode

–40°C

50

Peak output current

1

A

SHORT CIRCUIT PROTECTION

Short-circuit current

2.3

A

SHUTDOWN INPUT

Output = High

Output = High, –40°C

2

Shutdown threshold

V

Output = Low

0

Output = Low, –40°C

0.3

Turnoff delay

20

µs

Turnon delay

25

µs

SD input current

1

nA

ERROR FLAG

Threshold

10%

5%

16%

Threshold hysteresis

5%

2%

8%

0.02

ERROR flag saturation

V

0.1

Td

Flag reset delay

1

µs

ERROR flag pin leakage current

1

nA

ERROR flag pin sink current

1

mA

(1)

Limits are specified by testing, design, or statistical correlation.

(2)

Typical numbers are at 25°C and represent the most likely parametric norm.

(3)

Output voltage line regulation is defined as the change in output voltage from the nominal value due to change in the input line voltage.

Output voltage load regulation is defined as the change in output voltage from the nominal value due to change in load current. The line

and load regulation specification contains only the typical number. However, the limits for line and load regulation are included in the

output voltage tolerance specification.

(4)

Dropout voltage is defined as the minimum input to output differential voltage at which the output drops 2% below the nominal value.

Dropout voltage specification applies only to output voltages of 2.5 V and above. For output voltages below 2.5 V, the dropout voltage is

nothing but the input to output differential, because the minimum input voltage is 2.5 V.

(5)

ERROR Flag threshold and hysteresis are specified as percentage of regulated output voltage. See ERROR Flag Operation.

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