Datasheet

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SLVS273− FEBRUARY 2000
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
MIN MAX UNIT
Input voltage, V
I
1.8 3.6 V
Continuous output current, I
O
max 100 mA
Operating junction temperature, T
J
125 °C
electrical characteristics at C
i
= 4.7 µF, C1 = C2 = 2.2 µF, C
o
= 10 µF
†
at T
C
= −40°C to 85°C, V
I
= 2 V,
FB = V
O
and ENABLE = V
I
(unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
(UVLO)
Undervoltage lockout threshold T
C
= 25°C 1.6 1.8 V
I
O
max Maximum continuous output current 100 mA
V
O
Output voltage
1.8 V < V
I
< 2 V,
V
O
Start-up = 5 V,
0 < I
O
< I
O
max/2
T
C
= 0°C to 70°C
4.8 5.2
V
O
2 V < V
I
< 3.6 V,
0 < I
O
< I
O
max
4.8 5.2
I
lkg(OUT)
Output leakage current V
I
= 2.4 V, V
(ENABLE)
= GND 1 µA
I
Q
Quiescent current (no-load input current) V
I
= 2.4 V 65 90 µA
I
(SD)
Shutdown current V
I
= 2.4 V, V
(ENABLE)
= GND 0.05 1 µA
f
(OSC)
Oscillator frequency 210 320 450 kHz
V
IL
ENABLE input voltage low V
I
= 1.8 V 0.3 × V
I
V
V
IH
ENABLE input voltage high V
I
= 3.6 V 0.7 × V
I
V
I
lkg(ENABLE)
ENABLE input leakage current V
(ENABLE)
= GND or V
I
0.01 0.1 µA
Output load regulation
V
I
= 2.4 V,
1 mA < I
O
< I
O
max,
T
C
= 25°C
0.003 %/mA
Output line regulation
2 V < V
I
< 3.6 V,
V
O
= 5 V: I
O
= 75 mA,
T
C
= 25°C
0.08 %/V
I
(SC)
Short circuit current limit
V
I
< 2.4 V, V
O
= 0 V,
T
C
= 25°C
100 mA
V
(TRIP,LBI)
LBI trip voltage TPS60140
V
I
= 1.8 V to 2.2 V,
Hysteresis 0.8% for rising LBI
voltage,
T
C
= 0°C to 70°C
1.15 1.21 1.27 V
I
I(LBI)
LBI input current TPS60140 LBI = 1.3 V 20 100 nA
V
O(LBO)
LBO output voltage low
‡
TPS60140
V
(LBI)
= 0 V,
I
(LBO,SINK)
= 1 mA
0.4 V
I
lkg(LBO)
LBO output leakage current TPS60140 V
(LBI)
= 1.3 V, V
(LBO)
= 5 V 0.01 0.1 µA
V
(TRIP,PG)
Power-good trip voltage TPS60141 T
C
= 0°C to 70°C
0.86 ×
V
O
0.90 ×
V
O
0.94 ×
V
O
V
V
hys(PG)
Power-good trip voltage hysteresis TPS60141
V
O
ramping down,
T
C
= 0°C to 70°C
0.8%
V
O(PG)
Power-good output voltage low TPS60141 V
O
= 0 V, I
(PG,SINK)
= 1 mA 0.4 V
I
lkg(PG)
Power-good leakage current TPS60141 V
O
= 5 V, V
(PG)
= 5 V 0.01 0.1 µA
†
All capacitors are ceramic capacitors of the type X5R or X7R.
‡
During start-up the LBO signal is invalid for the first 500 µs.