Datasheet

TPS737xx
SBVS067P –JANUARY 2006–REVISED JULY 2013 www.ti.com
ELECTRICAL CHARACTERISTICS
Over operating temperature range (T
J
= –40°C to +125°C), V
IN
= V
OUT(nom)
+ 1.0V
(1)
, I
OUT
= 10mA, V
EN
= 2.2V, and
C
OUT
= 2.2μF, unless otherwise noted. Typical values are at T
J
= +25°C.
TPS737xx
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage range
(1)(2)
2.2 5.5 V
Internal reference
T
J
= +25°C 1.198 1.2 1.210
(DCQ package)
V
FB
V
Internal reference
T
J
= +25°C 1.192 1.2 1.216
(DRB and DRV packages)
Output voltage range
V
FB
5.5 – V
DO
V
(TPS73701)
(3)
Nominal T
J
= +25°C –1.0 +1.0
5.36V < V
IN
< 5.5V, V
OUT
= 5.08V,
V
OUT
Accuracy
(1) ,
10mA < I
OUT
< 800mA, –2.0 +2.0
%
(4)
–40C < T
J
< +85°C, TPS73701DCQ
over V
IN
, I
OUT
, V
OUT
+ 0.5V ≤ V
IN
≤ 5.5V;
–3.0 ±0.5 +3.0
and T 10mA ≤ I
OUT
≤ 1A
ΔV
OUT
%/ΔV
IN
Line regulation
(1)
V
OUT(nom)
+ 0.5V ≤ V
IN
≤ 5.5V 0.01 %/V
1mA ≤ I
OUT
≤ 1A 0.002
ΔV
OUT
%/ΔI
OUT
Load regulation %/mA
10mA ≤ I
OUT
≤ 1A 0.0005
Dropout voltage
(5)
V
DO
I
OUT
= 1A 130 500 mV
(V
IN
= V
OUT(nom)
– 0.1V)
Z
O
(DO) Output impedance in dropout 2.2V ≤ V
IN
≤ V
OUT
+ V
DO
0.25 Ω
I
CL
Output current limit V
OUT
= 0.9 × V
OUT(nom)
1.05 1.6 2.2 A
I
SC
Short-circuit current V
OUT
= 0V 450 mA
I
REV
Reverse leakage current
(6)
(–I
IN
) V
EN
≤ 0.5V, 0V ≤ V
IN
≤ V
OUT
0.1 μA
I
OUT
= 10mA (I
Q
) 400
I
GND
GND pin current μA
I
OUT
= 1A 1300
I
SHDN
Shutdown current (I
GND
) V
EN
≤ 0.5V, V
OUT
≤ V
IN
≤ 5.5 20 nA
I
FB
FB pin current (TPS73701) 0.1 0.6 μA
f = 100Hz, I
OUT
= 1A 58
Power-supply rejection ratio
PSRR dB
(ripple rejection)
f = 10kHz, I
OUT
= 1A 37
Output noise voltage
V
N
C
OUT
= 10μF 27 × V
OUT
μV
RMS
BW = 10Hz to 100kHz
t
STR
Startup time V
OUT
= 3V, R
L
= 30Ω, C
OUT
= 1μF 600 μs
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 20 nA
Shutdown, temperature increasing +160
T
SD
Thermal shutdown temperature °C
Reset, temperature decreasing +140
T
J
Operating junction temperature –40 +125 °C
(1) Minimum V
IN
= V
OUT
+ V
DO
or 2.2V, whichever is greater.
(2) For V
OUT(nom)
< 1.6V, when V
IN
≤ 1.6V, the output will lock to V
IN
and may result in an over-voltage condition on the output. To avoid this
situation, disable the device before powering down V
IN
.
(3) TPS73701 is tested at V
OUT
= 1.2V.
(4) Tolerance of external resistors not included in this specification.
(5) V
DO
is not measured for fixed output versions with V
OUT(nom)
< 2.3V since minimum V
IN
= 2.2V.
(6) Fixed-voltage versions only; refer to the Applications section for more information.
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