TPS734XX Datasheet, PDF (7/20 Pages) Texas Instruments – 250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low-Dropout Linear Regulator

TPS734xx
www.ti.com ........................................................................................................................................ SBVS089F – DECEMBER 2007 – REVISED FEBRUARY 2009
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (T_J = –40°C to +125°C); V_IN = V_OUT(TYP) + 0.3V or 2.7V, whichever is greater; I_OUT = 1mA,
V_EN = V_IN,C_OUT = 2.2µF, C_NR = 0.01µF, unless otherwise noted. For TPS73401, V_OUT = 3.0V. Typical values are at T_J =
+25°C.
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
-0.5
7
6
5
4
3
2
1
0
-1
TPS73425
TURN-ON RESPONSE
(V_IN = V_EN)
C_OUT = 2.2mF
C_OUT = 10mF
V_EN
V_OUT
10ms/div
Figure 15.
TPS73410
POWER-UP/POWER-DOWN
I_OUT = 250mA
V_IN
TPS73425
ENABLE RESPONSE OVER STABLE V_IN
3.5
3.0
2.5
C_OUT = 2.2mF
2.0
V_EN
V_OUT
1.5
1.0
C_OUT = 10mF
0.5
0
-0.5
10ms/div
Figure 16.
TPS73410
LOAD TRANSIENT RESPONSE
V_IN = 2.7V
100mV/div
C_OUT = 1.0mF
V_OUT
100mV/div
C_OUT = 2.2mF
V_OUT
V_OUT
250mA
50ms/div
Figure 17.
100mA/div
1mA
I_OUT
20ms/div
Figure 18.
20mV/div
TPS73410
LINE TRANSIENT RESPONSE
C_OUT = 2.2mF
I_OUT = 250mA
V_OUT
C_OUT = 1.0mF
20mV/div
1V/div
2.7V
3.7V
20ms/div
Figure 19.
V_OUT
dV_{IN = 1V/ms}
dt
V_IN
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