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參數(shù)資料
| 型號： | TK71245M |
| 廠商： | TOKO INC |
| 元件分類： | 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： | 4.5 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, PDSO5 |
| 封裝： | PLASTIC, SOT-23, SOT-25, 5 PIN |
| 文件頁數(shù)： | 16/18頁 |
| 文件大小： | 97K |
| 代理商： | TK71245M |
Page 16
January 1999 TOKO, Inc.
TK712xx
DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)
The range of usable currents can also be found from the
graph below.
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
(mW)
TA (
°
C)
3
6
5
4
0
50
100
TA (
°
C)
P
150
0
600
1000
200
400
800
MOUNTED
FREE AIR
SOT-25 POWER DISSIPATION CURVE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TK71245MTL | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| TK71250 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| TK71250M | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| TK71250MTL | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| TK712XX | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TK71245MTL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT REGULATOR |
| TK71245MTL/J45 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT REGULATOR |
| TK71250 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT REGULATOR |
| TK71250M | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT REGULATOR |
| TK71250MTL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW DROPOUT REGULATOR |
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