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| AAT1230 Datasheet, PDF (18/21 Pages) Advanced Analogic Technologies – 18V 100mA Step-Up Converter | |||
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AAT1230
18V 100mA Step-Up Converter
From datasheet, VIN = 3.6V, TCASE = 100°C, TSOPJW-12:
RDS(ON)L = 75mΩ, RDS(ON)H = 220mΩ, θJA = 160°C/W.
PLOSS(RDSON) = IRMS2 · (RDS(ON)L + RDS(ON)H)
= 0.5272 (0.220 + 0.075)
= (0.527)2 (0.295)
= 0.082
= 82mW
TJ(MAX) = TAMB + θJA · PLOSS(RDSON)
= 50 + 160 (0.082)
= 50 + 13.1
= 61.3°C
18
1230.2006.03.1.0
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