Datasheet
TPS78915, TPS78918, TPS78925, TPS78928, TPS78930
ULTRALOW-POWER LOW-NOISE 100-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS300A – SEPTEMBER 2000 – REVISED MAY 2001
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
MIN NOM MAX UNIT
Input voltage, V
I
(see Note 2) 2.7 10 V
Continuous output current, I
O
(see Note 3) 0 100 mA
Operating junction temperature, T
J
–40 125 °C
NOTES: 2. To calculate the minimum input voltage for your maximum output current, use the following formula:
V
I
(min) = V
O
(max) + V
DO
(max load)
3. Continuous output current and operating junction temperature are limited by internal protection circuitry, but it is not recommended
that the device operate under conditions beyond those specified in this table for extended periods of time.
electrical characteristics over recommended operating free-air temperature range,
V
I
= V
O(typ)
+ 1 V, I
O
= 1 mA, EN = 0 V, C
o
= 4.7 µF (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TPS78915
T
J
= 25°C, 2.7 V < V
I
< 10 V 1.5
TPS78915
T
J
= –40°C to 125°C, 2.7 V < V
I
< 10 V 1.455 1.545
TPS78918
T
J
= 25°C, 2.8 V < V
I
< 10 V 1.8
TPS78918
T
J
= –40°C to 125°C, 2.8 V < V
I
< 10 V 1.746 1.854
Out
p
ut voltage (see Note 4)
TPS78925
T
J
= 25°C, 3.5 V < V
I
< 10 V 2.5
V
Output
voltage
(see
Note
4)
TPS78925
T
J
= –40°C to 125°C, 3.5 V < V
I
< 10 V 2.425 2.575
V
TPS78928
T
J
= 25°C, 3.8 V < V
I
< 10 V 2.8
TPS78928
T
J
= –40°C to 125°C, 3.8 V < V
I
< 10 V 2.716 2.884
TPS78930
T
J
= 25°C, 4.0 V < V
I
< 10 V 3
TPS78930
T
J
= –40°C to 125°C, 4.0 V < V
I
< 10 V 2.910 3.090
Quiescent current (GND current) (see Notes 4 and 5)
EN = 0 V, 10 µA < I
O
< 100 mA,
T
J
= 25°C
17
µA
Quiescent
current
(GND
current)
(see
Notes
4
and
5)
EN = 0 V, I
O
= 100 mA,
T
J
= –40°C to 125°C
28
µ
A
Load regulation
EN = 0 V, I
O
= See Note 4
T
J
= 25°C
12 mV
Out
p
ut voltage line regulation (∆V
O
/V
O
) (see Note 5)
V
O
+ 1 V < V
I
≤ 10 V, T
J
= 25°C,
See Note 4
0.04
%/V
Output
voltage
line
regulation
(∆V
O
/V
O
)
(see
Note
5)
V
O
+ 1 V < V
I
≤ 10 V,
T
J
= –40°C to 125°C, See Note 4
0.1
%/V
Output noise voltage (TPS78930)
BW = 300 Hz to 50 kHz, C
(byp)
= 0.01 µF
C
o
= 10 µF, I
O
= 100 mA, T
J
= 25°C
56 µV
RMS
Output current limit V
O
= 0 V, See Note 4 350 750 mA
Standby current
EN = V
I
, 2.7 < V
I
< 10 V 1 µA
Standby
current
T
J
= –40°C to 125°C 2 µA
NOTES: 4. The minimum IN operating voltage is 2.7 V or V
O(typ)
+ 1 V, whichever is greater. The maximum IN voltage is 10 V. The minimum
output current is 10 µA and the maximum output current is 100 mA.
5. If V
O
≤ 1.8 V then V
Imin
= 2.7 V, V
Imax
= 10 V:
Line Reg. (mV) % V
V
O
V
Imax
2.7 V
100
1000
If V
O
≥ 2.5 V then V
Imin
= V
O
+ 1 V, V
Imax
= 10 V:
Line Reg. (mV) % V
V
O
V
Imax
V
O
1V
100
1000