Datasheet

9397 750 15049 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 05 — 28 June 2005 8 of 16
Philips Semiconductors
TDA3661
Very low dropout voltage/quiescent current voltage regulator
I
REG
= 50 mA.
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
V
P
(V)
I
q
(mA)
25
20
mda950
0 20 100
4
3
1
0
2
40 60
I
REG
(mA)
I
q
(mA)
80
mda952
I
REG
= 0 mA. I
REG
= 0 mA.
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
REG
(V)
100 150
mda955
040
I
REG
(mA)
V
REG(drop)
(mV)
80 120
500
400
200
100
300
mda957