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LMR14030SDDA データシート(PDF) 4 Page - Texas Instruments

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部品番号 LMR14030SDDA
部品情報  LMR14030 SIMPLE SWITCHER짰 40 V 3.5 A, 2.2 MHz Step-Down Converter with 40 關A IQ
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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LMR14030
SNVSA81A – FEBRUARY 2015 – REVISED APRIL 2015
www.ti.com
7 Specifications
7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
MIN
MAX
UNIT
VIN, EN to GND
-0.3
44
BOOT to GND
-0.3
49
Input Voltages
SS to GND
-0.3
5
V
FB to GND
-0.3
7
RT/SYNC to GND
-0.3
3.6
BOOT to SW
6.5
Output Voltages
V
SW to GND
-3
44
TJ
Junction temperature
-40
150
°C
Tstg
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, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
7.2 ESD Ratings
PARAMETER
DEFINITION
VALUE
UNIT
Human body model (HBM)(1)
2
Electrostatic
V(ESD)
kV
discharge
Charged device model (CDM)(2)
0.5
(1)
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2)
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
7.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VIN
4
40
VOUT
0.8
28
Buck Regulator
BOOT
45
V
SW
-1
40
FB
0
5
EN
0
40
Control
RT/SYNC
0
3.3
V
SS
0
3
Switching frequency range at RT mode
200
2500
Frequency
kHz
Switching frequency range at SYNC mode
250
2300
Temperature
Operating junction temperature, TJ
-40
125
°C
7.4 Thermal Information
DDA
THERMAL METRIC(1)
UNIT
8 PINS
RθJA
Junction-to-ambient thermal resistance
42.5
ψJT
Junction-to-top characterization parameter
9.9
ψJB
Junction-to-board characterization parameter
25.4
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
56.1
RθJC(bot)
Junction-to-case (bottom) thermal resistance
3.8
RθJB
Junction-to-board thermal resistance
25.5
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
4
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Copyright © 2015, Texas Instruments Incorporated
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