tk11633utl Token Electronics Industry Co., Ltd., tk11633utl Datasheet - Page 11

• Manufacturer Part Number: tk11633utl
• Description: Three-terminal Voltage Regulator
• Manufacturer: Token Electronics Industry Co., Ltd.

thermal equilibrium is reached. The range of usable currents
can also be found from the graph below:
Procedure:
1) Find P
2) P
3) Plot P
4) Connect P
5) In design, take a vertical line from the maximum operating
6) Read off the value of P
January 1999 TOKO, Inc.
with a straight line.
temperature (e.g., 75 C.) to the derating curve.
The maximum operating current is:
D1
D pd
P D
is taken to be P
(mW)
I
D1
OUT
D
1000
SOT-89 POWER DISSIPATION CURVE
DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)
800
600
400
200
against 25 C.
0
= (D
D1
0
25
3
6
to the point corresponding to the 150 C
PD
/ (V
50
D
50
IN(MAX)
x (~ 0.8 - 0.9)
D
T A ( C)
T A ( C)
75
against the point at which the
5
- V
MOUNTED AS
SHOWN
OUT
100
FREE AIR
)
4
150
150
TK116xxU
Page 11