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