Datasheet

VOUT
t
t
EN
t1 t2
VoutisshorttoGND
SoftStart
I
OUT_MAX
50mA(min)
CurrentLimit
4.2V
Vout
t
t0
5.0V
4.5V
Output
Shortcircuitcurrent
Outputcurrent
TPS60151
www.ti.com ......................................................................................................................................................................................... SLVSA02 – SEPTEMBER 2009
ELECTRICAL CHARACTERISTICS (continued)
V
IN
=3.6V, T
A
= – 40 ° C to 85 ° C, typical values are at T
A
= 25 ° C, C1 = C3 = 2.2 µ F, C2 = 1.0 µ F (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
SS
Soft-start time From the rising edge of enable to 90% output 150 µ s
OUTPUT CURRENT
I
OUT_nom
Maximum output current V
OUT
remains between 4.8 V and 5.2 V, 120 mA
3.1 V ≤ V
IN
≤ 5.5 V
3.3 V < V
IN
< 5.5 V 140
I
OUT_max
Current limit V
OUT
= 4.5 V 500 mA
I
OUT_short
Short circuit current
(2)
V
OUT
= 0 V 80 mA
RIPPLE VOLTAGE
V
R
Output ripple voltage I
OUT
= 140 mA 30 mV
ENABLE CONTROL
V
HI
Logic high input voltage 2.7 V ≤ V
IN
≤ 5.5 V 1.3 V
IN
V
V
LI
Logic low input voltage – 0.2 0.4 V
I
HI
Logic high input current 1 µ A
I
LI
Logic low input current 1 µ A
THERMAL SHUTDOWN
T
SD
Shutdown temperature 160 ° C
T
RC
Shutdown recovery 140 ° C
(2) TPS60151 has internal protection circuit to protect IC when V
OUT
shorted to GND.
Figure 2. Maximum Output Current Capability and Short Circuit protection
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