Datasheet

TPS60240, TPS60241
TPS60242, TPS60243
SLVS372B – JUNE 2001 – REVISED JANUARY 2002
14
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TYPICAL CHARACTERISTICS
Figure 29
C
I
= C
O
= 4.7 µF
C1 = C2 = 1 µF
R
O
= 500 Ω
V
I
= 3.3 V
T
A
= 25°C
TPS60241
NOISE VOLTAGE SPECTRUM
10 Hz 100 Hz 1 kHz 10 kHz 100 kHz
10 mVrms
Hz
Ǹ
100 nVrms
Hz
Ǹ
NOTE: Scope triggered by voltage at flying capacitors, noise removed by averaging function and bandwidth limit 20 MHz.
Figure 30
R
L
= 500 Ω
V
I
= 3.3 V
T
A
= 25°C
TPS60241
OUTPUT VOLTAGE RIPPLE
vs
TIME
2.5 µs/div
C
I
= C
O
= 1 µF
C
I
= C
O
= 4.7 µF
200 V/divµ