Data Sheet

TPS731
www.ti.com SBVS034N –SEPTEMBER 2003–REVISED DECEMBER 2015
6.5 Electrical Characteristics
Over operating temperature range (T
J
= –40°C to +125°C), V
IN
= V
OUT(nom)
+ 0.5 V
(1)
, I
OUT
= 10 mA, V
EN
= 1.7 V, and
C
OUT
= 0.1 μF, unless otherwise noted. Typical values are at T
J
= 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage range
(1)
1.7 5.5 V
V
FB
Internal reference (TPS73101) T
J
= 25°C 1.198 1.20 1.210 V
Output voltage range (TPS73101)
(2)
V
FB
5.5 – V
DO
V
Nominal T
J
= 25°C –0.5% 0.5%
V
OUT
Accuracy
(1) (3)
V
OUT
+ 0.5 V ≤ V
IN
≤ 5.5 V;
V
IN
, I
OUT
, and T –1% ±0.5% 1%
10 mA ≤ I
OUT
≤ 150 mA
ΔV
OUT(ΔVIN)
Line regulation
(1)
V
OUT(nom)
+ 0.5 V ≤ V
IN
≤ 5.5 V 0.01 %/V
1 mA ≤ I
OUT
≤ 150 mA 0.002
ΔV
OUT(ΔIOUT)
Load regulation %/mA
10 mA ≤ I
OUT
≤ 150 mA 0.0005
Dropout voltage
(4)
V
DO
I
OUT
= 150 mA 30 100 mV
(V
IN
= V
OUT
(nom) – 0.1V)
Z
O(DO)
Output impedance in dropout 1.7 V ≤ V
IN
≤ V
OUT
+ V
DO
0.25 Ω
I
CL
Output current limit V
OUT
= 0.9 × V
OUT(nom)
150 360 500 mA
I
SC
Short-circuit current V
OUT
= 0 V 200 mA
I
REV
Reverse leakage current
(5)
(–I
IN
) V
EN
≤ 0.5 V, 0V ≤ V
IN
≤ V
OUT
0.1 10 μA
I
OUT
= 10 mA (I
Q
) 400 550
I
GND
GND pin current μA
I
OUT
= 150 mA 550 750
V
EN
≤ 0.5 V, V
OUT
≤ V
IN
≤ 5.5 V,
I
SHDN
Shutdown current (I
GND
) 0.02 1 μA
–40°C ≤ T
J
≤ 100°C
I
FB
FB pin current (TPS73101) 0.1 0.3 μA
f = 100 Hz, I
OUT
= 150 mA 58
Power-supply rejection ratio
PSRR dB
(ripple rejection)
f = 10 kHz, I
OUT
= 150 mA 37
C
OUT
= 10 μF, No C
NR
27 × V
OUT
Output noise voltage
V
n
μV
RMS
BW = 10Hz - 100kHz
C
OUT
= 10 μF, C
NR
= 0.01 μF 8.5 × V
OUT
V
OUT
= 3 V, R
L
= 30 Ω
t
STR
Startup time 600 μs
C
OUT
= 1 μF, C
NR
= 0.01 μF
V
EN(high)
EN pin high (enabled) 1.7 V
IN
V
V
EN(low)
EN pin low (shutdown) 0 0.5 V
I
EN(high)
EN pin current (enabled) V
EN
= 5.5V 0.02 0.1 μA
Shutdown Temp increasing 160
T
SD
Thermal shutdown temperature °C
Reset Temp decreasing 140
T
J
Operating junction temperature –40 125 °C
(1) Minimum V
IN
= V
OUT
+ V
DO
or 1.7 V, whichever is greater.
(2) TPS73101 is tested at V
OUT
= 2.5 V.
(3) Tolerance of external resistors not included in this specification.
(4) V
DO
is not measured for fixed output versions with V
OUT(nom)
< 1.8 V because minimum V
IN
= 1.7 V.
(5) Fixed-voltage versions only; refer to Application Information for more information.
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