Philips Semiconductors
TDA3661
Very low dropout voltage/quiescent current voltage regulator
6
VREG
(V)
4
mda954
2
0
0
100
VP = 8 V and pulsed load
200
300
IREG (mA)
Fig 13. Fold back protection mode
12. Test information
−30
SVRR
(dB)
−40
mda956
(1)
(2)
−50
(3)
(1)
−60
(2)
(3)
−70
10
102
103
104
105
f (Hz)
IREG = 10 mA; C2 = 10 µF.
(1) SVRR at RL = 100 Ω.
(2) SVRR at RL = 500 Ω.
(3) SVRR at RL = 10 kΩ.
Fig 14. Supply voltage ripple rejection as a function of
the ripple frequency
12.1 Quality information
The General Quality Specification for Integrated Circuits, SNW-FQ-611 is applicable.
12.2 Test circuit
VP C1(1)
1 µF
8
1
TDA3661
5
2, 3, 6, 7
R1
75.1 kΩ
R2
24.9 kΩ
mgs581
C1 is optional (to minimize supply noise only)
Fig 15. Test circuit
VREG
C2 = 5 V
10 µF
9397 750 15049
Product data sheet
Rev. 05 — 28 June 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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