Datasheet
TPS732xx
SBVS037O –AUGUST 2003–REVISED AUGUST 2010
www.ti.com
ELECTRICAL CHARACTERISTICS
Over operating temperature range (T
J
= –40°C to +125°C), V
IN
= V
OUT(nom)
+ 0.5V
(1)
, I
OUT
= 10mA, V
EN
= 1.7V, and
C
OUT
= 0.1mF, 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 (TPS73201) T
J
= +25°C 1.198 1.20 1.210 V
Output voltage range (TPS73201)
(2)
V
FB
5.5 – V
DO
V
Nominal T
J
= +25°C –0.5 +0.5
V
OUT
Accuracy
(1)(3)
%
V
OUT
+ 0.5V ≤ V
IN
≤ 5.5V;
V
IN
, I
OUT
, and T –1.0 ±0.5 +1.0
10 mA ≤ I
OUT
≤ 250mA
ΔV
OUT
%/ΔV
IN
Line regulation
(1)
V
OUT(nom)
+ 0.5V ≤ V
IN
≤ 5.5V 0.01 %/V
1mA ≤ I
OUT
≤ 250mA 0.002
ΔV
OUT
%/ΔI
OUT
Load regulation %/mA
10mA ≤ I
OUT
≤ 250mA 0.0005
Dropout voltage
(4)
V
DO
I
OUT
= 250mA 40 150 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)
250 425 600 mA
I
SC
Short-circuit current V
OUT
= 0V 300 mA
I
REV
Reverse leakage current
(5)
(–I
IN
) V
EN
≤ 0.5V, 0V ≤ V
IN
≤ V
OUT
0.1 10 mA
I
OUT
= 10mA (I
Q
) 400 550
I
GND
GND pin current mA
I
OUT
= 250mA 650 950
V
EN
≤ 0.5V, V
OUT
≤ V
IN
≤ 5.5,
I
SHDN
Shutdown current (I
GND
) 0.02 1 µA
–40°C ≤ T
J
≤ +100°C
I
FB
FB pin current (TPS73201) 0.1 0.3 mA
f = 100Hz, I
OUT
= 250 mA 58
Power-supply rejection ratio
PSRR dB
(ripple rejection)
f = 10kHz, I
OUT
= 250 mA 37
C
OUT
= 10mF, No C
NR
27 × V
OUT
Output noise voltage
V
N
mV
RMS
BW = 10Hz – 100kHz
C
OUT
= 10mF, C
NR
= 0.01mF 8.5 × V
OUT
V
OUT
= 3V, R
L
= 30Ω
t
STR
Startup time 600 ms
C
OUT
= 1 mF, C
NR
= 0.01 mF
V
EN
(HI) EN pin high (enabled) 1.7 V
IN
V
V
EN
(LO) EN pin low (shutdown) 0 0.5 V
I
EN
(HI) EN pin current (enabled) V
EN
= 5.5V 0.02 0.1 mA
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 1.7V, whichever is greater.
(2) TPS73201 is tested at V
OUT
= 2.5V.
(3) Tolerance of external resistors not included in this specification.
(4) V
DO
is not measured for fixed output versions with V
OUT(nom)
< 1.8V since minimum V
IN
= 1.7V.
(5) Fixed-voltage versions only; refer to Applications section for more information.
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