L4979MD L4979D

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VOLTAGE REGULATOR

Output voltage

4.90

5.00

5.10

V

150

280

400

mA

150

320

500

mA

Line regulation voltage

25

mV

Load regulation voltage

25

mV

Drop voltage

200

400

mV

SVR

55

dB

RESET

Reset output low voltage

Vo > 1V

0.4

V

Reset output high leakage

current

1

µA

Internal Pull up resistance

12

25

50

k

Ω

Reset threshold voltage

6%

below

8%

below

10%

below

Reset timing high threshold

44%

47%

50%

Reset timing low threshold

10%

13%

16%

Charge current

8

17

30

µA

Discharge current

8

17

30

µA

Reset delay time (3)

100

250

700

µs

Reset pulse delay

65

150

ms

WATCHDOG

Input high voltage

3.5

V

Input low voltage

1.5

V

Input hysteresis

300

mV

Pull down current

10

20

µA

High threshold

2.20

2.35

2.50

V

Low threshold

0.50

0.65

0.80

V

Pin

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Table 5: Electrical Characteristics (continued)