Datasheet

TPS71025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A – MAY 1997 – REVISED MAY 1998
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at T
J
= 25°C, V
I(IN)
= 3.5 V, I
O
= 10 mA, EN = 0 V, C
o
= 4.7 µF/CSR
†
= 1 Ω,
SENSE shorted to OUT (unless otherwise noted)
PARAMETER
TEST CONDITIONS
‡
TPS71025Y
UNIT
PARAMETER
TEST
CONDITIONS
‡
MIN TYP MAX
UNIT
Output voltage 3.5 V ≤ V
I
≤ 10 V 2.5 V
I
O
= 10 mA, V
I
= 2.45 V 5.7
Dropout voltage
I
O
= 100 mA, V
I
= 2.45 V 57
mV
I
O
= 500 mA, V
I
= 2.45 V 330
Pass-element series resistance 0.66 Ω
Input regulation V
I
= 3.5 V to 10 V 7 mV
Out
p
ut regulation
I
O
= 5 mA to 500 mA 18 mV
O
u
tp
u
t
reg
u
lation
I
O
= 50 µA to 500 mA 24 mV
Ri
pp
le rejection
f = 120 Hz, I
O
= 50 µA 53
dB
Ripple
rejection
f = 120 Hz, I
O
= 500 mA 51
dB
Output noise-spectral density f = 120 Hz 2
µV/√Hz
10 H ≤ f ≤ 100 kH
C
o
= 4.7 µF
274
Output noise voltage
10 Hz ≤ f ≤ 100 kHz,
CSR
=
1 Ω
C
o
= 10 µF
228
µVrms
CSR
=
1
Ω
C
o
= 100 µF
159
Quiescent current (active mode)
EN = 0 V,
0 mA ≤ I
O
≤ 500 mA
292 µA
Supply current (standby mode) EN = V
I
, 2.7 V ≤ V
I
≤ 10 V 18 nA
Output current limit V
O
= 0, V
I
= 10 V 1.07 A
Pass-element leakage current in standby mode EN = V
I
, 2.7 V ≤ V
I
≤ 10 V 0.223 µA
Output voltage temperature coefficient 61 ppm/°C
Thermal shutdown junction temperature 165 °C
Logic high inp t oltage (standb mode) EN
2.5 V ≤ V
I
≤ 6 V 2
V
L
og
i
c
hi
g
h
i
nput vo
l
tage
(
stan
db
y mo
d
e
)
,
EN
6 V ≤ V
I
≤ 10 V 2.7
V
Logic low input voltage (active mode), EN 2.7 V ≤ V
I
≤ 10 V 0.5 V
Hysteresis voltage, EN 50 mV
Input current, EN 0 V ≤ V
I
≤ 10 V 0 µA
Input voltage, minimum for active pass element 2 V
†
CSR (compensation series resistance) refers to the total series resistance, including the equivalent series resistance (ESR) of the capacitor ,
any series resistance added externally, and PWB trace resistance to C
o
.
‡
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.