Datasheet

TPS71025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A – MAY 1997 – REVISED MAY 1998
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating junction temperature range, 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
‡
T
J
MIN TYP MAX
UNIT
Out
p
ut voltage
35V≤V
I
≤10 V
25°C 2.5
V
O
u
tp
u
t
v
oltage
3
.
5
V
≤
V
I
≤
10
V
0°C to 125°C 2.45 2.55
V
I
O
=10mA
V
I
= 2 45 V
25°C 5.7 7.5
I
O
=
10
mA
,
V
I
=
2
.
45
V
0°C to 125°C 10
Dro
p
out voltage
I
O
= 100 mA
V
I
= 2 45 V
25°C 57 95
mV
Dropout
voltage
I
O
=
100
mA
,
V
I
=
2
.
45
V
0°C to 125°C 105
mV
I
O
= 500 mA
V
I
= 2 45 V
25°C 330 450
I
O
=
500
mA
,
V
I
=
2
.
45
V
0°C to 125°C 500
Pass element series resistance
25°C 0.66 0.9
Ω
Pass
-
element
series
resistance
0°C to 125°C 1
Ω
In
p
ut regulation
V
I
= 3.5 V to 10 V,
25°C 7 23
mV
Inp
u
t
reg
u
lation
I
50 µA ≤ I
O
≤ 500 mA
0°C to 125°C 12.7 29
mV
I
O
= 5 mA to 500 mA,
25°C 18 38
mV
Out
p
ut regulation
O
3.5 V ≤ V
I
≤ 10 V
0°C to 125°C 75
mV
O
u
tp
u
t
reg
u
lation
I
O
= 50 µA to 500 mA,
25°C 24 60
mV
O
µ
3.5 V ≤ V
I
≤ 10 V
0°C to 125°C 120
mV
f = 120 Hz
I
O
=50µA
25°C 43 53
Ri
pp
le rejection
f
=
120
H
z,
I
O
=
50
µ
A
0°C to 125°C 40
dB
Ripple
rejection
f = 120 Hz
I
O
= 500 mA
25°C 39 51
dB
f
=
120
H
z,
I
O
=
500
mA
0°C to 125°C 36
Output noise-spectral density f = 120 Hz 25°C 2
µV/√Hz
10 Hz ≤ f ≤ 100 kHz
C
o
= 4.7 µF
25°C 274
Output noise voltage
10
H
z ≤
f
≤
100 kH
z,
CSR
=
1 Ω
C
o
= 10 µF
25°C 228
µVrms
CSR
=
1
Ω
C
o
= 100 µF
25°C 159
Quiescent current (active mode)
EN ≤ 0.5 V,
25°C 292 390
µA
Q
u
iescent
c
u
rrent
(acti
v
e
mode)
,
0 mA ≤ I
O
≤ 500 mA
0°C to 125°C 540
µ
A
Su
pp
ly current (standby mode)
EN =V
I
27V≤V
I
≤10 V
25°C 18 475
nA
S
u
ppl
y
c
u
rrent
(standb
y
mode)
EN
=
V
I
,
2
.
7
V
≤
V
I
≤
10
V
0°C to 125°C 1900
nA
Out
p
ut current limit
V
O
=0
V
I
=10V
25°C 1.07 2
A
O
u
tp
u
t
c
u
rrent
limit
V
O
=
0
,
V
I
=
10
V
0°C to 125°C 2
A
Pass-element leakage current in standby
EN =V
I
27V≤V
I
≤10 V
25°C 0.223 0.5
µA
gy
mode
EN
=
V
I
,
2
.
7
V
≤
V
I
≤
10
V
0°C to 125°C 1
µ
A
Output voltage temperature coefficient 0°C to 125°C 61 75 ppm/°C
Thermal shutdown junction temperature 165 °C
Logic high in
p
ut voltage (standby mode) EN
2.5 V ≤ V
I
≤ 6 V 25°C 2
V
Logic
high
inp
u
t
v
oltage
(standb
y
mode)
,
EN
6 V ≤ V
I
≤ 10 V 0°C to 125°C 2.7
V
Logic low in
p
ut voltage (active mode) EN
27V≤V
I
≤10 V
25°C 0.5
V
Logic
low
input
voltage
(active
mode)
,
EN
2
.
7
V
≤
V
I
≤
10
V
0°C to 125°C 0.5
V
Hysteresis voltage, EN 0°C to 125°C 50 mV
In
p
ut current EN
0V≤V
I
≤10 V
25°C –0.5 0.5
µA
Input
current
,
EN
0
V
≤
V
I
≤
10
V
0°C to 125°C –0.5 0.5
µ
A
Input voltage, minimum for active pass
25°C 2 2.5
V
g,
element
0°C to 125°C 2.5
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.