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參數(shù)資料
| 型號： | MC78M12A |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 500 mA Positive Voltage Regulators |
| 中文描述： | 500毫安正電壓穩(wěn)壓器 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 178K |
| 代理商： | MC78M12A |
MC78M00, MC78M00A Series
http://onsemi.com
7
DEFINITIONS
Line Regulation
- The change in output voltage for a
change in the input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques
such that the average chip temperature is not significantly
affected.
Load Regulation
- The change in output voltage for a
change in load current at constant chip temperature.
Maximum Power Dissipation
- The maximum total
device dissipation for which the regulator will operate
within specifications.
Input Bias Current
- That part of the input current that
is not delivered to the load.
Output Noise Voltage
- The rms AC voltage at the
output, with constant load and no input ripple, measured
over a specified frequency range.
Long Term Stability
- Output voltage stability under
accelerated life test conditions with the maximum rated
voltage listed in the devices' electrical characteristics and
maximum power dissipation.
Figure 2. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
Figure 3. Worst Case Power Dissipation
versus Ambient Temperature (TO-220)
,
D
P
JC
= 5
°
C/W
P
D(max)
= 7.52 W
No Heat Sink
HS
= 20
°
C/W
HS
= 10
°
C/W
Infinite Heat
Sink
R
θ
,
J
J
°
L, LENGTH OF COPPER (mm)
PD
R
JA
10
5.0
3.0
2.0
1.0
0.5
0.3
0.2
0.1
40
50
60
70
80
90
100
T
A
, AMBIENT TEMPERATURE (
°
C)
25
50
75
100
125
150
0
10
20
30
25
15
5.0
L
L
Free Air
Mounted
Vertically
2.0 oz. Copper
P
D(max)
for T
A
= 50
°
C
0
0.4
0.8
1.2
1.6
2.0
2.4
Minimum
Size Pad
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC78M12ABDT | 功能描述:線性穩(wěn)壓器 - 標準 12V 500mA Positive RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MC78M12ABDTG | 功能描述:線性穩(wěn)壓器 - 標準 12V 500mA Positive RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MC78M12ABDTRK | 功能描述:線性穩(wěn)壓器 - 標準 12V 500mA Positive RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MC78M12ABDTRKG | 功能描述:線性穩(wěn)壓器 - 標準 12V 500mA Positive RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MC78M12ABT | 功能描述:線性穩(wěn)壓器 - 標準 12V 500mA Positive RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
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