參數(shù)資料
型號(hào)： TK11900M
廠商： TOKO INC
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
中文描述： 1.5 V-15 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO6
封裝： PLASTIC, SOT-23L, 6 PIN
文件頁(yè)數(shù)： 7/10頁(yè)
文件大小： 73K
代理商： TK11900M
November 2000 TOKO, Inc.
Page 7
TK11900
DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)
SOT-23L POWER DISSIPATION
The range of usable currents can also be found from the
graph below.
(mW)
Procedure:
1)
2)
3)
4)
Find P
D
P
D1
is taken to be P
D
x (~ 0.8 - 0.9)
Plot P
D1
against 25
°
C
Connect P
D1
to the point corresponding to the 150
°
C with a straight line.
In design, take a vertical line from the maximum
operating temperature (e.g., 75
°
C) to the derating
curve.
Read off the value of P
D
against the point at which
the vertical line intersects the derating curve. This
is taken as the maximum power dissipation, D
PD
.
5)
6)
The maximum operating current is:
I
OUT
= (D
PD
/ (V
IN(MAX)
-
V
OUT
)
PD
DPD
25
50
75
150
TA (
°
C)
3
6
5
4
0
50
100
TA (
°
C)
P
150
0
300
500
100
200
400
MOUNTED
FREE AIR
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