TDA3674 查看數據表（PDF） - Philips Electronics
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TDA3674 Datasheet PDF : 16 Pages
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Philips Semiconductors
Low dropout voltage/quiescent current 5 V
voltage regulator with enable
Preliminary specification
TDA3674
handboo5k,0h0alfpage
VREG(drop)
(mV)
400
300
200
MDA957
handbook, h6alfpage
VREG
(V)
4
2
MDA954
100
0
40
80
120
IREG (mA)
Fig.15 Dropout voltage as a function of the output
current.
0
0
100
200
300
IREG (mA)
VP = 8 V with pulsed load.
Fig.16 Fold back protection mode.
handbook−,3h0alfpage
SVRR
(dB)
−40
MDA956
(1)
(2)
−50
(3)
(1)
−60
(2)
−70 (3)
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.17 SVRR as a function of the ripple frequency.
2000 Feb 01
10
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