Datasheet

TPS75003-EP
www.ti.com SGLS311A –DECEMBER 2006– REVISED MARCH 2011
ELECTRICAL CHARACTERISTICS (continued)
V
EN1
= V
IN1
, V
EN2
= V
IN2
, V
EN3
= V
IN3
, V
IN1
= V
IN2
= 2.2 V, V
IN3
= 3 V, V
OUT3
= 2.5V, C
OUT1
= C
OUT2
= 47 μF, C
OUT3
= 2.2 μF,
T
A
= -55°C to 125°C, unless otherwise noted. Typical values are at T
A
= 25°C.
PARAMETER CONDITIONS MIN TYP MAX UNIT
LDO
V
OUT3
Output voltage range
(4)
1 6.5 - V
DO
V
V
FB3
Feedback pin voltage 0.507 V
2.95 V ≤ V
IN3
≤ 6.5 V
Feedback pin voltage accuracy
(5)
±4%
1 mA ≤ I
OUT3
≤ 300 mA
ΔV
OUT%
/ΔV
IN
Line regulation
(5)
V
OUT3
+ 0.5V ≤ V
IN3
≤ 6.5 V 0.075 % / V
ΔV
OUT%
/ΔI
OUT
Load regulation 10 mA ≤ I
OUT3
≤ 300 mA 0.01 % / mA
Dropout voltage
V
DO
I
OUT3
= 300 mA 250 350 mV
(V
IN
= V
OUT(NOM)
- 0.1)
(6)
I
CL3
Current limit V
OUT
= 0.9 x V
OUT(NOM)
375 600 1000 mA
I
FB3
Current into FB3 pin 0.03 0.1 μA
BW = 100 Hz - 100 kHz,
V
n
Output noise 400 μV
RMS
I
OUT3
= 300 mA
Shutdown, temperature increasing 175
Thermal shutdown temperature for
t
SD
°C
LDO
Reset, temperature decreasing 160
Undervoltage lockout threshold V
IN
rising 1.8 V
UVLO
Undervoltage lockout hysteresis V
IN
falling 100 mV
(4) Maximum V
OUT
is dependent on external components and will be less than V
IN
. Parameter is not production tested.
(5) To be in regulation, minimum V
IN1
(or V
IN2
) must be greater than V
OUT1,NOM
(or V
OUT2,NOM
) by an amount determined by external
components. Minimum V
IN3
= V
OUT3
+ V
DO
or 2.2 V, whichever is greater.
(6) V
DO
does not apply when V
OUT
+ V
DO
< 2.2 V.
Copyright © 2006–2011, Texas Instruments Incorporated 5
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