TPS79015, TPS79018, TPS79025, TPS79028, TPS79030
ULTRALOW-POWER LOW-NOISE 50-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS299B – SEPTEMBER 2000 – REVISED MAY 2001
electrical characteristics over recommended operating free–air temperature range,
V = V
+ 1 V, I = 1 mA, EN = 0V, C = 4.7 µF (unless otherwise noted) (continued)
I
O(typ)
O
o
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
High level enable input voltage
Low level enable input voltage
2.7 V < V < 10 V
1.7
I
2.7 V < V < 10 V
I
0.9
V
f = 1 kHz,
C
C
= 10 µF,
o
(byp)
Power supply ripple rejection (TPS79030)
Input current (EN)
85
0
dB
T
J
= 25°C,
= 0.01 µF
EN = 0 V
EN = V
–1
–1
1
1
µA
µA
I
I
O
I
O
I
O
I
O
= 50 mA,
= 50 mA,
= 50 mA,
= 50 mA,
T
J
T
J
T
J
T
J
= 25°C
60
57
Dropout voltage (see Note 6)
Dropout voltage (see Note 6)
TPS79028
TPS79030
= –40°C to 125°C
= 25°C
125
115
mV
= –40°C to 125°C
6. IN voltage equals V (typ) –100 mV; The TPS79030 output voltage is set to 2.9 V. The TPS79015, TPS79018, and TPS79025
O
dropout voltage is limited by input voltage range limitations.
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
vs Output current
vs Junction temperature
vs Junction temperature
vs Frequency
1, 2, 3
4, 5, 6
7
V
Output voltage
O
Ground current
Output spectral noise density
Root mean squared output noise
Output impedance
8 – 10
11
vs Bypass capacitance
vs Frequency
Z
o
12
V
Dropout voltage
vs Junction temperature
vs Frequency
13
DO
O
Ripple rejection
14 – 16
17 – 19
20, 22
21, 23
24, 25
V
Output voltage, enable voltage
Line transient response
Load transient response
Equivalent series resistance (ESR)
vs Time (start-up)
vs Output current
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
