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参数资料
| 型号： | NCV78M15BDTG |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/15页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 15V .5A DPAK-3 |
| 标准包装： | 75 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 15V |
| 输入电压： | 最高 35V |
| 电压 - 压降（标准）： | 2V @ 350mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-252-3，DPak（2 引线+接片），SC-63 |
| 供应商设备封装： | DPAK-3 |
| 包装： | 管件 |
MC78M00, MC78M00A, NCV78M00 Series
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.
100
90
80
Free Air
Mounted
Vertically
P D(max) for T A = 50 ? C
2.0 oz. Copper
L
2.4
2.0
1.6
Minimum
70
60
50
Size Pad
L
1.2
0.8
0.4
R q JA
40
0
5.0
10
15
20
25
0
30
L, LENGTH OF COPPER (mm)
Figure 2. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
10
5.0
3.0
2.0
1.0
0.5
0.3
0.2
q HS = 20 ? C/W
q JC = 5 ? C/W
q HS = 10 ? C/W
No Heat Sink
Infinite Heat
Sink
0.1
25
P D(max) = 7.52 W
50
75
100
125
150
T A , AMBIENT TEMPERATURE ( ? C)
Figure 3. Worst Case Power Dissipation
versus Ambient Temperature (TO ? 220)
http://onsemi.com
7
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