Datasheet

TPS76815-Q1, TPS76818-Q1, TPS76825-Q1, TPS76827-Q1
TPS76828-Q1, TPS76830-Q1 TPS76833-Q1, TPS76850-Q1, TPS76801-Q1
FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS
SGLS155A − FEBRUARY 2003 − REVISED SEPTEMBER 2008
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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
= 10 µF (unless otherwise noted) (continued)
PARAMETER TEST CONDITIONS
MIN TYP MAX UNIT
Minimum input voltage for valid PG I
O(PG)
= 300 µA 1.1 V
Trip threshold voltage V
O
decreasing 92 98 %V
O
PG
Hysteresis voltage Measured at V
O
0.5 %V
O
PG
Output low voltage V
I
= 2.7 V, I
O(PG)
= 1 mA 0.15 0.4 V
Leakage current V
(PG)
= 5 V 1 µA
Input current (EN)
EN = 0 V −1 0 1
A
Input current (EN)
EN = V
I
−1 1
µA
TPS76828
I
O
= 1 A, T
J
= 25°C 500
TPS76828
I
O
= 1 A, T
J
= −40°C to 125°C 825
TPS76830
I
O
= 1 A, T
J
= 25°C 450
Dropout volta
g
e
TPS76830
I
O
= 1 A, T
J
= −40°C to 125°C 675
mV
Dropout
voltage
(see Note 4)
TPS76833
I
O
= 1 A, T
J
= 25°C 350
mV
TPS76833
I
O
= 1 A, T
J
= −40°C to 125°C 575
TPS76850
I
O
= 1 A, T
J
= 25°C 230
TPS76850
I
O
= 1 A, T
J
= −40°C to 125°C 380
NOTE 4: IN voltage equals V
O
(typ) − 100 mV; TPS76801 output voltage set to 3.3 V nominal with external resistor divider. TPS76815, TPS76818,
TPS76825, and TPS76827 dropout voltage limited by input voltage range limitations (i.e., TPS76830 input voltage needs to drop to
2.9 V for purpose of this test).
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
V
Output voltage
vs Output current 2, 3, 4
V
O
Output voltage
vs Free-air temperature
5, 6, 7
Ground current vs Free-air temperature 8, 9
Power supply ripple rejection vs Frequency 10
Output spectral noise density vs Frequency 11
Input voltage (min) vs Output voltage 12
Z
o
Output impedance vs Frequency 13
V
DO
Dropout voltage vs Free-air temperature 14
Line transient response 15, 17
Load transient response 16, 18
V
O
Output voltage vs Time 19
Dropout voltage vs Input voltage 20
Equivalent series resistance (ESR) vs Output current 22 − 25