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TPS54540-Q1 Fiches technique(PDF) 4 Page - Texas Instruments

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No de pièce TPS54540-Q1
Description  4.5 V to 42 V Input, 5 A, Step Down DC-DC Converter with Eco-mode
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

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TPS54540-Q1
SLVSC56A – SEPTEMBER 2013 – REVISED OCTOBER 2013
www.ti.com
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
VALUE
UNIT
MIN
MAX
VIN
–0.3
65
EN
–0.3
8.4
BOOT
73
Input voltage
V
FB
–0.3
3
COMP
–0.3
3
RT/CLK
–0.3
3.6
BOOT-SW
8
Output voltage
SW
–0.6
65
V
SW, 10-ns Transient
–2
65
Electrostatic Discharge (HBM) QSS 009-105 (JESD22-A114A) and AEC-Q100
2
kV
Electrostatic Discharge (CDM) QSS 009-147 (JESD22-C101B.01) and AEC-Q100
750
V
Operating junction temperature
-40
150
°C
Storage temperature
-65
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 or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
THERMAL INFORMATION
TPS54540-Q1
THERMAL METRIC(1)(2)
UNIT
DDA (8 PINS)
θJA
Junction-to-ambient thermal resistance (standard board)
42
ψJT
Junction-to-top characterization parameter
5.9
ψJB
Junction-to-board characterization parameter
23.4
°C/W
θJCtop
Junction-to-case(top) thermal resistance
45.8
θJCbot
Junction-to-case(bottom) thermal resistance
3.6
θJB
Junction-to-board thermal resistance
23.4
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2)
Power rating at a specific ambient temperature TA should be determined with a junction temperature of 150°C. This is the point where
distortion starts to substantially increase. See power dissipation estimate in application section of this data sheet for more information.
4
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