Datasheet

Voltage(1V/div)
Time(1ms/div)
LoadCurrent
V =5.50V
IN
V =3.3V
OUT
I =150mA
OUT
C
OUT
=10mF
V
IN
V
OUT
Enable
0V
Current(50mA/div)
Voltage(1V/div)
Time(1ms/div)
Load
Current
V =5.5V
IN
V =3.3V
OUT
I =150mA
OUT
C =10 Fm
OUT
V
IN
V
OUT
Enable
0V
Current(50mA/div)
1V/div
Time(500ms/div)
V
IN
=5.0V
Enable=V
IN
I
OUT
=150mA
V Transitioningfrom2.2Vto3.3V
OUT
V
OUT
V
SET
1V/div
Time(500 s/div)m
V =5.0V
IN
I =150mA
OUT
V Transitioningfrom3.3Vto2.2V
OUT
V
OUT
V
SET
Voltage(1V/div)
Time(50ms/div)
V
SET
V =5.5V
IN
V =3.3V
OUT
I =150mA
OUT
to100mA
C =10 Fm
OUT
V
IN
V
OUT
LoadCurrent
0A
50mA
100mA
Current(50mA/div)
TPS781 Series
SBVS102B – MARCH 2008 – REVISED MAY 2008 ........................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
Over the operating temperature range of T
J
= – 40 ° C to +125 ° C, V
IN
= V
OUT(TYP)
+ 0.5V or 2.2V, whichever is greater;
I
OUT
= 100 µ A, V
EN
= V
VSET
= V
IN
, C
OUT
= 1 µ F, and C
IN
= 1 µ F, unless otherwise noted.
ENABLE PIN vs OUTPUT VOLTAGE RESPONSE
AND OUTPUT CURRENT ENABLE PIN vs OUTPUT VOLTAGE DELAY
TPS781330220 TPS781330220
Figure 43. Figure 44.
V
SET
PIN TOGGLE V
SET
PIN TOGGLE
TPS781330220 TPS781330220
Figure 45. Figure 46.
V
SET
PIN TOGGLE (SLOW RAMP)
TPS781330220
Figure 47.
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