Datasheet

TPS74401-EP
www.ti.com SBVS122B –MARCH 2010–REVISED SEPTEMBER 2010
ABSOLUTE MAXIMUM RATINGS
(1)
At T
J
= –55°C to +125°C, unless otherwise noted. All voltages are with respect to GND.
UNIT
V
IN
, V
BIAS
Input voltage range –0.3 to +6 V
V
EN
Enable voltage range –0.3 to +6 V
V
PG
Power-good voltage range –0.3 to +6 V
I
PG
PG sink current 0 to +1.5 mA
V
SS
SS pin voltage range –0.3 to +6 V
V
FB
Feedback pin voltage range –0.3 to +6 V
V
OUT
Output voltage range –0.3 to V
IN
+ 0.3 V
I
OUT
Maximum output current Internally limited
Output short circuit duration Indefinite
T
J
Operating junction temperature range –55 to +125 °C
T
STG
Storage junction temperature range –65 to +150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these conditions is not implied. Exposure to absolute-maximum-rated conditions for
extended periods may affect device reliability.
THERMAL INFORMATION
TPS74401-EP
THERMAL METRIC
(1)(2)
UNITS
RGW (20 PINS)
q
JA
Junction-to-ambient thermal resistance 36.3
q
JCtop
Junction-to-case (top) thermal resistance 34.3
q
JB
Junction-to-board thermal resistance 10.8
°C/W
y
JT
Junction-to-top characterization parameter 0.3
y
JB
Junction-to-board characterization parameter 11.9
q
JCbot
Junction-to-case (bottom) thermal resistance 2.4
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2) For thermal estimates of this device based on PCB copper area, see the TI PCB Thermal Calculator.
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