TDA3668AT Datasheet, PDF (10/16 Pages) NXP Semiconductors – Very low dropout voltage/quiescent current 5 V regulator with overvoltage switch off

Philips Semiconductors
Very low dropout voltage/quiescent current
5 V regulator with overvoltage switch off
Preliminary specification
TDA3668AT
handboo⁵k,⁰h⁰alfpage
VREG(drop)
(mV)
400
300
200
MDA957
handbook, h⁶alfpage
VREG
(V)
4
2
MDA954
100
0
40
80
120
IREG (mA)
Fig.16 Dropout voltage as a function of the output
current.
0
0
100
200
300
IREG (mA)
V_P = 8 V with pulsed load.
Fig.17 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)
I_REG = 10 mA; C2 = 10 µF.
(1) SVRR at R_L = 100 Ω.
(2) SVRR at R_L = 500 Ω.
(3) SVRR at R_L = 10 kΩ.
Fig.18 SVRR as a function of the ripple frequency.
2000 Feb 01
10