ILE4264 Datasheet, PDF (2/4 Pages) Integral Corp. – 5V/100mA Low-Drop Fixed-Voltage Regulator (analog TLE4264G, Siemens)

ABSOLUTE MAXIMUM RATINGS
Parameter
Junction temperature, Т_J
Storage temperature, Т_stg
Input voltage, U_I
Input current, I_I
Current on “ground” (pin 2),I_GND
Output current (pin 3)
Resistance junction-case, R_thJC
ILE4264
Unit
O_C
O_C
V
А
mA
А
°С/Wt
Operating values
min
max
-40
125
-
-
5,5
45
-
Limited
internally
15
-
-
Limited
internally
-
25*
Absolute
maximum values
min
max
-40
150
-50
150
-42
42
-
Not
limited
internally
50
-
-
Not
limited
internally
-
25*
Resistance junction-air, R_thJA
°С/Wt
-
125*
-
125*
Notes:
1 * - R_{th ja} - thermal resistance “junction-air” (for IC without additional external heat sink), ^ОС/Wt. The same
parameter in analog IC is R_{th ja} = 125 ^ОС/Вт (by “Siemens” information data). Thermal resistance “junction-air”
of this circuit is determined in the course of research & development work.
For the circuit with additional external heat sink:
R_{th ja} = R_{th jc} + R_{th ca} ,
(1)
Where R_{th jc} – IC thermal resistance “junction-case”, ^ОС/Wt. . The same parameter in analog IC is R_{th jc} = 25
О_{С/Wt ((by “Siemens” information data). Thermal resistance “case-air” Rth ca in the designed IC is}
determined by heat sink structure and specified by IC consumer.
Heat sink, switching “on” mode (power consumed) and ambient temperature should ensure junction
temperature not more than T_J ≤ +125 ^ОС.
2 Absolute maximum power P_tot,Wt, dissipated by the IC at the ambient temperature T_A , is determined as:
P_tot = (125 - T_A) / R_{th ja} ,
(2)
where 125 – absolute maximum junction operation temperature, ^ОС
2