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Product data sheet

Rev. 05 — 28 June 2005

8 of 16

Philips Semiconductors

TDA3661

Very low dropout voltage/quiescent current voltage regulator

Fig 9.

Quiescent current as a function of the supply

voltage

Fig 10. Quiescent current as a function of the output

current

5

1.4

1.6

1.8

2

10

15

(mA)

25

20

mda950

0

20

100

4

3

1

0

2

40

60

(mA)

80

mda952

Fig 11. Output voltage thermal protection as a function

of the junction temperature

Fig 12. Dropout voltage as a function of the output

current

−50

200

6

0

2

4

050

Tj (

°C)

(V)

100

150

mda955

040

(mV)

80

120

500

400

200

100

300

mda957