參數(shù)資料
型號(hào): QTLP671C-W
廠商: EVERLIGHT ELECTRONICS CO LTD
元件分類(lèi): LED
英文描述: SINGLE COLOR LED, WHITE, 2.4 mm
封裝: PLASTIC, LCC-2
文件頁(yè)數(shù): 5/6頁(yè)
文件大?。?/td> 1670K
代理商: QTLP671C-W
Liteon Semiconductor Corporation
LSP2133
300mA High PSRR Low Dropout CMOS Linear Regulator
5/8
Rev1.2
It is also useful to calculated the junction temperature of the LSP2133 under a set of specific conditions. In this
example let the input voltage VIN=3.3V, the output current IO=300mA and the case temperature TA=40
measured
by a thermal couple during operation. The power dissipation for the VO=2.8V version of the LSP2133 can be
calculated as:
PD=(3.3V-2.8V)*300mA+3.3V*70μA150mW
And the junction temperature, TJ, can be calculated as follows:
TJ=TA+PDJA
TJ=40 +0.15W*250 /W
=77.5 <TJ(MAX) =125
For this operating condition, TJ, is lower than the absolute maximum operating junction temperature, 125 , so it is
safe to use the LSP2133 in this configuration.
TYPICAL PERFORMANCE CHARACTERISTICS
(V0 = 1.2V, CIN = 1F, CO = 2.2F , TA = 25°C unless otherwise specified.)
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