參數(shù)資料
型號(hào): TPS57114QRTERQ1
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PQCC16
封裝: 3 X 3 MM, GREEN, PLASTIC, WQFN-16
文件頁(yè)數(shù): 23/37頁(yè)
文件大?。?/td> 1309K
代理商: TPS57114QRTERQ1
SLVSAH5A
– DECEMBER 2010 – REVISED MARCH 2011
THERMAL INFORMATION
TPS57114-Q1
THERMAL METRIC(1)(2)(3)
(RTE)
UNITS
(QFN-16) PINS
θJA
Junction-to-ambient thermal resistance
56.4
θJA
Junction-to-ambient thermal resistance (4)
37
ψJT
Junction-to-top characterization parameter
0.9
ψJB
Junction-to-board characterization parameter
22.2
°C/W
θJC(top)
Junction-to-case(top) thermal resistance
28.7
θJC(bottom)
Junction-to-case(bottom) thermal resistance
12.5
θJB
Junction-to-board thermal resistance
22.7
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2)
Maximum power dissipation may be limited by overcurrent protection
(3)
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. Thermal management of the PCB should strive to keep the junction temperature at or below
150
°C for best performance and long-term reliability. See power dissipation estimate in application section of this data sheet for more
information.
(4)
Test boards conditions:
(a) 2 inches x 2 inches, 4 layers, thickness: 0.062 inch
(b) 2 oz. copper traces located on the top of the PCB
(c) 2 oz. copper ground planes on the 2 internal layers and bottom layer
(d) 4 thermal vias (10mil) located under the device package
Copyright
2010–2011, Texas Instruments Incorporated
3
Product Folder Link(s): TPS57114 -Q1
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