Datasheet

TPS782xx
www.ti.com SBVS115B –AUGUST 2008–REVISED MAY 2010
ELECTRICAL CHARACTERISTICS
Over operating temperature range (T
J
= –40°C to +125°C), V
IN
= V
OUT(NOM)
+ 0.5V or 2.2V, whichever is greater;
I
OUT
= 100mA, V
EN
= V
IN
, C
OUT
= 1.0mF, fixed V
OUT
test conditions, unless otherwise noted. Typical values at T
J
= +25°C.
TPS782xx
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage range 2.2 5.5 V
Nominal T
J
= +25°C –2 ±1 +2 %
V
OUT
DC output accuracy
Over V
IN
, I
OUT
, V
OUT
+ 0.5V ≤ V
IN
≤ 5.5V,
–3.0 ±2.0 +3.0 %
temperature 0mA ≤ I
OUT
≤ 150mA
ΔV
OUT
/ΔV
IN
Line regulation V
OUT(NOM)
+ 0.5V ≤ V
IN
≤ 5.5V, I
OUT
= 5mA ±1.0 %
ΔV
OUT
/ΔI
OUT
Load regulation 0mA ≤ I
OUT
≤ 150mA ±2.0 %
V
DO
Dropout voltage
(1)
V
IN
= 95% V
OUT(NOM)
, I
OUT
= 150mA 130 250 mV
BW = 100Hz to 100kHz, V
IN
= 2.2V,
V
N
Output noise voltage 86 mV
RMS
V
OUT
= 1.2V, I
OUT
= 1mA
I
CL
Output current limit V
OUT
= 0.90 × V
OUT(NOM)
150 230 400 mA
I
OUT
= 0mA 0.42 1.3 mA
I
GND
Ground pin current
I
OUT
= 150mA 8 mA
V
EN
≤ 0.4V, 2.2V ≤ V
IN
< 5.5V,
I
SHDN
Shutdown current (I
GND
) 18 130 nA
T
J
= –40°C to +100°C
I
EN
EN pin current V
EN
= 5.5V 40 nA
f = 10Hz 40 dB
V
IN
= 4.3V,
PSRR Power-supply rejection ratio V
OUT
= 3.3V, f = 100Hz 20 dB
I
OUT
= 150mA
f = 1kHz 15 dB
C
OUT
= 1.0mF, V
OUT
= 10% V
OUT(NOM)
to
t
STR
Startup time
(2)
500 ms
V
OUT
= 90% V
OUT(NOM)
I
OUT
= 150mA, C
OUT
= 1.0mF, V
OUT
= 2.8V,
t
SHDN
Shutdown time
(3)
V
OUT
= 90% V
OUT(NOM)
to V
OUT
= 10% 500
(4)
ms
V
OUT(NOM)
Shutdown, temperature increasing +160 °C
T
SD
Thermal shutdown temperature
Reset, temperature decreasing +140 °C
T
J
Operating junction temperature –40 +125 °C
(1) V
DO
is not measured for devices with V
OUT(NOM)
≤ 2.3V because minimum V
IN
= 2.2V.
(2) Time from V
EN
= 1.2V to V
OUT
= 90% (V
OUT(NOM)
).
(3) Time from V
EN
= 0.4V to V
OUT
= 10% (V
OUT(NOM)
).
(4) See Shutdown in the Application Information section for more details.
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