Datasheet

TPS75003
SBVS052I –OCTOBER 2004–REVISED AUGUST 2010 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
V
EN1
= V
IN1
, V
EN2
= V
IN2
, V
EN3
= V
IN3
, V
IN1
= V
IN2
= 2.2V, V
IN3
= 3.0V, V
OUT3
= 2.5V, C
OUT1
= C
OUT2
= 47mF, C
OUT3
= 2.2mF,
T
A
= –40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.
PARAMETER CONDITIONS MIN TYP MAX UNIT
LDO
V
OUT3
Output Voltage Range 1.0 6.5 – V
DO
V
V
FB3
Feedback Pin Voltage 0.507 V
Feedback Pin Voltage 2.95V ≤ V
IN3
≤ 6.5V
–4.0 +4.0 %
Accuracy
(4)
1mA ≤ I
OUT3
≤ 300mA
ΔV
OUT%
/ΔV
IN
Line Regulation
(4)
V
OUT3
+ 0.5V ≤ V
IN3
≤ 6.5V 0.075 % / V
ΔV
OUT%
/ΔI
OU
Load Regulation 10mA ≤ I
OUT3
≤ 300mA 0.01 % / mA
T
Dropout Voltage
V
DO
I
OUT3
= 300mA 250 350 mV
(V
IN
= V
OUT(NOM)
– 0.1)
(5)
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 mA
BW = 100Hz – 100kHz,
V
n
Output Noise 400 mV
RMS
I
OUT3
= 300mA
Shutdown, Temp Increasing 175
Thermal Shutdown Temperature
t
SD
°C
for LDO
Reset, Temp Decreasing 160
Under-Voltage Lockout Threshold V
IN
Rising 1.80 V
UVLO
Under-Voltage Lockout
V
IN
Falling 100 mV
Hysteresis
(4) 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 2.2V, whichever is greater.
(5) V
DO
does not apply when V
OUT
+ V
DO
< 2.2V.
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