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| 型号： | CS8182YDPSR5 |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .2A D2PAK-5 |
| 产品变化通告： | Product Discontinuation 20/Aug/2008 |
| 标准包装： | 750 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 2.8 V ~ 45 V |
| 输入电压： | 3.4 V ~ 45 V |
| 电压 - 压降（标准）： | 0.35V @ 200mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 200mA |
| 电流 - 限制（最小）： | 225mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-6，D²Pak（5 引线+接片），TO-263BA |
| 供应商设备封装： | D2PAK-5 |
| 包装： | 带卷 (TR) |
| 其它名称： | CS8182YDPSR5OS |
CS8182
External Capacitors
The output capacitor for the CS8182 is required for
stability. Without it, the regulator output will oscillate.
Actual size and type may vary depending upon the
In some cases, none of the packages will be sufficient to
dissipate the heat generated by the IC, and an external heat
sink will be required.
application load and temperature range. Capacitor effective
series resistance (ESR) is also a factor in the IC stability.
Worst ? case is determined at the minimum ambient
temperature and maximum load expected.
V IN
I IN
SMART
REGULATOR ?
I OUT
V OUT
) VIN(max)IQ
The output capacitor can be increased in size to any
desired value above the minimum. One possible purpose of
this would be to maintain the output voltage during brief
conditions of negative input transients that might be
characteristic of a particular system.
The capacitor must also be rated at all ambient
temperatures expected in the system. To maintain regulator
stability down to ? 40 ° C, a capacitor rated at that temperature
must be used.
Calculating Power Dissipation in a Single Output
Linear Regulator
The maximum power dissipation for a single output
regulator (Figure 17) is:
PD(max) + {VIN(max) * VOUT(min)} IOUT(max)
(1)
where:
Control
Features
I Q
Figure 17. Single Output Regulator with Key
Performance Parameters Labeled
Heatsinks
A heatsink effectively increases the surface area of the
package to improve the flow of heat away from the IC and
into the surrounding air.
Each material in the heat flow path between the IC and the
outside environment will have a thermal resistance. Like
series electrical resistances, these resistances are summed to
determine the value of R q JA:
V IN(max) is the maximum input voltage,
V OUT(min) is the minimum output voltage,
I OUT(max) is the maximum output current, for the
application,and
I Q is the quiescent current the regulator consumes at
I OUT(max) .
Once the value of PD(max) is known, the maximum
R q JA + R q JC ) R q CS ) R q SA
where:
R q JC = the junction ? to ? case thermal resistance,
R q CS = the case ? to ? heatsink thermal resistance, and
R q SA = the heatsink ? to ? ambient thermal resistance.
(3)
R q JA + 150 ° C * TA (2)
permissible value of R q JA can be calculated:
PD
The value of R q JA can then be compared with those in the
package section of the data sheet. Those packages with
R q JC appears in the package section of the data sheet. Like
R q JA , it is a function of package type. R q CS and R q SA are
functions of the package type, heatsink and the interface
between them. These values appear in heat sink data sheets
of heatsink manufacturers.
R q JA ’s less than the calculated value in equation 2 will keep
the die temperature below 150 ° C.
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS8182YDPSR5G | 功能描述:低压差稳压器 - LDO 200mA TRCKNG/LN DRV RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| CS8182YDR8 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Positive Adjustable Voltage Regulator |
| CS8183 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Dual Micropower 200 mA Low Dropout Tracking Regulator/Line Driver |
| CS8183/D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Dual Micropower 200mA Low Dropout Tracking Regulator/Line Driver |
| CS8183_09 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Dual Micropower 200 mA Low Dropout Tracking Regulator/Line Driver |
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