TPS77001, TPS77012, TPS77015, TPS77018, TPS77025
TPS77027, TPS77028, TPS77030, TPS77033, TPS77050
ULTRA LOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
SLVS210C – JUNE 1999 – REVISED SEPTEMBER 1999
electrical characteristics over recommended operating free–air temperature range, V = V
+
I
O(typ)
1 V, I = 50 mA, EN = 0V, C = 4.7 µF (unless otherwise noted) (continued)
O
O
PARAMETER
TEST CONDITIONS
FB = 1.224 V (TPS77001)
2.7 V < V < 10 V
MIN
–1
TYP
MAX
UNIT
µA
V
FB input current
1
High level enable input voltage
Low level enable input voltage
1.7
I
2.7 V < V < 10 V
I
0.9
V
f = 1 kHz,
T = 25°C,
J
C
= 10 µF,
O
Power supply ripple rejection
Input current (EN)
60
0
dB
See Note 4
EN = 0 V
–1
–1
1
1
µA
µA
EN = V
I
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
= 50 mA,
= 50 mA
= 50 mA,
= 50 mA
= 50 mA,
= 50 mA
= 50 mA,
= 50 mA
T = 25°C
60
57
48
35
J
TPS77028
TPS77030
TPS77033
TPS77050
T = –40°C to 125°C
J
125
115
100
85
T = 25°C
J
T = –40°C to 125°C
J
Dropout voltage
(See Note 6)
mV
T = 25°C
J
T = –40°C to 125°C
J
T = 25°C
J
T = –40°C to 125°C
J
NOTES: 4. Minimum IN operating voltage is 2.7 V or V (typ) + 1 V, whichever is greater. Maximum IN voltage 10 V, minimum output current
O
10 µA, maximum output current 50 mA.
6. IN voltage equals V (Typ) –100mV; TPS77001 output voltage set to 3.3 V nominal with external resistor divider. TPS77012,
O
TPS77015, TPS77018, TPS77025, and TPS77027 dropout voltage limited by input voltage range limitations.
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
vs Output current
vs Free-air temperature
vs Free-air temperature
vs Frequency
1, 2, 3
4, 5, 6
7
V
Output voltage
O
Ground current
Output spectral noise density
Output impedance
Dropout voltage
8
Z
o
vs Frequency
9
V
DO
vs Free-air temperature
vs Frequency
10
Ripple rejection
11
LDO startup time
12
Line transient response
Load transient response
13, 15
14, 16
17, 19
18, 20
vs Output current
Equivalent series resistance (ESR)
vs Added ceramic capacitance
5
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