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参数资料
| 型号： | NCP623MN-25R2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 2.5V .15A 6-DFN |
| 标准包装： | 3,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 2.5V |
| 输入电压： | 最高 12V |
| 电压 - 压降（标准）： | 0.18V @ 150mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA |
| 电流 - 限制（最小）： | 175mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-VDFN 裸露焊盘 |
| 供应商设备封装： | 6-DFN（3x3） |
| 包装： | 带卷 (TR) |
NCP623
DEFINITIONS
Load Regulation ? The change in output voltage for a
change in load current at constant chip temperature.
Dropout Voltage ? The input/output differential at which
the regulator output no longer maintains regulation against
further reductions in input voltage. Measured when the
output drops 100 mV below its nominal value (which is
measured at 1.0 V differential), dropout voltage is affected
by junction temperature, load current and minimum input
supply requirements.
Output Noise Voltage ? The RMS AC voltage at the
output with a constant load and no input ripple, measured
over a specified frequency range.
Maximum Power Dissipation ? The maximum total
dissipation for which the regulator will operate within
specifications.
Quiescent Current ? Current which is used to operate the
regulator chip and is not delivered to the load.
Line Regulation ? The change in input 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.
Line Transient Response ? Typical over ? and
undershoot response when input voltage is excited with a
given slope.
Thermal Protection ? Internal thermal shutdown
Maximum Package Power Dissipation ? The maximum
package power dissipation is the power dissipation level at
which the junction temperature reaches its maximum value
i.e. 125 ° C. The junction temperature is rising while the
difference between the input power (V CC X I CC ) and the
output power (V out X I out ) is increasing.
Depending on ambient temperature, it is possible to
calculate the maximum power dissipation, maximum load
current or maximum input voltage (see Application Hints:
Protection).
The maximum power dissipation supported by the device
is a lot increased when using appropriate application design.
Mounting pad configuration on the PCB, the board material
and also the ambient temperature are affected the rate of
temperature rise. It means that when the I C has good thermal
conductivity through PCB, the junction temperature will be
“low” even if the power dissipation is great.
The thermal resistance of the whole circuit can be
evaluated by deliberately activating the thermal shutdown
of the circuit (by increasing the output current or raising the
input voltage for example).
Then you can calculate the power dissipation by
subtracting the output power from the input power. All
variables are then well known: power dissipation, thermal
shutdown temperature (150 ° C for NCP623) and ambient
temperature.
circuitry is provided to protect the integrated circuit in the
event that the maximum junction temperature is exceeded.
When activated, typically 150 ° C, the regulator turns off.
This feature is provided to prevent catastrophic failures from
accidental overheating.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP623MN-28R2G | 功能描述:低压差稳压器 - LDO ANA 150mA LDO 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 |
| NCP623MN-3.3R2 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Ultra Low Noise 150 mA Low Dropout Voltage Regulator with ON/OFF Control |
| NCP623MN-30R2G | 功能描述:低压差稳压器 - LDO ANA 150mA LDO 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 |
| NCP623MN-33R2 | 功能描述:低压差稳压器 - LDO 3.3V 150mA Low Noise 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 |
| NCP623MN-33R2G | 功能描述:低压差稳压器 - LDO 150 mA LOW DROPOUT V REG 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 |
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