2000 Feb 01

8

Philips Semiconductors

Preliminary specification

Very low dropout voltage/quiescent current

5 V regulator with overvoltage switch off

TDA3668AT

Additional application information

This section gives typical curves for various parameters measured on the TDA3668AT. Standard test conditions are:

handbook, halfpage

010

VP (V)

Iq

(

µA)

20

30

25

0

20

15

10

5

MDA947

Fig.8

Quiescent current as a function of the

supply voltage.

handbook, halfpage

010

50

4

3

1

0

2

20

30

VP (V)

Iq

(mA)

40

MDA949

Fig.9

Quiescent current increase as a function of

high supply voltage.

handbook, halfpage

−40

0

(1)

(2)

160

2

1.5

0.5

0

1

40

80

Tj (°C)

Iq

(mA)

120

MDA951

Fig.10 Quiescent current as a function of the

junction temperature.

handbook, halfpage

5

0.36

0.40

0.44

0.48

10

15

VP (V)

Iq

(mA)

25

20

MDA948

Fig.11 Quiescent current as a function of the

supply voltage.