TLE42664 Datasheet, PDF (6/12 Pages) Infineon Technologies AG – Low Dropout Fixed Voltage Regulator

TLE42664
General Product Characteristics
4.3
Thermal Resistance
Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, go
to www.jedec.org.
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
TLE42664G (PG-SOT223-4)
4.3.1 Junction to Case¹⁾
R_thJC
–
17
–
K/W measured to heat
slug
4.3.2
4.3.3
Junction to Ambient¹⁾
R_thJA
–
–
54
–
139 –
K/W
K/W
2)
footprint only³⁾
4.3.4
–
73
–
K/W 300 mm² heatsink
area³⁾
4.3.5
–
64
–
K/W 600 mm² heatsink
area³⁾
1) Not subject to production test, specified by design.
2) Specified R_thJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The Product
(Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm³ board with 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu).
Where applicable a thermal via array under the exposed pad contacted the first inner copper layer.
3) Specified R_thJA value is according to Jedec JESD 51-3 at natural convection on FR4 1s0p board; The Product
(Chip+Package) was simulated on a 76.2 × 114.3 × 1.5 mm³ board with 1 copper layer (1 x 70µm Cu).
Data Sheet
6
Rev. 1.01, 2009-09-30