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参数资料
| 型号： | NCV4276DTADJRKG |
| 厂商： | ON Semiconductor |
| 文件页数： | 16/25页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .4A DPAK-5 |
| 产品变化通告： | NCV42xx Obsolescence 27/Apr/2011 |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 2.5 V ~ 20 V |
| 输入电压： | 4.5 V ~ 40 V |
| 电压 - 压降（标准）： | 0.25V @ 250mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 400mA |
| 电流 - 限制（最小）： | 400mA |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-252-5，DPak（4 引线 + 接片），TO-252AD |
| 供应商设备封装： | DPAK-5 |
| 包装： | 带卷 (TR) |
NCV4276, NCV4276A
Setting the Output Voltage (Adjustable Version)
The output voltage range of the adjustable version can be
set between 2.5 V and 20 V. This is accomplished with an
external resistor divider feeding back the voltage to the IC
back to the error amplifier by the voltage adjust pin VA.
The internal reference voltage is set to a temperature stable
reference of 2.5 V.
The output voltage is calculated from the following
formula. Ignoring the bias current into the VA pin:
VQ + [(R1 ) R2) * Vref] R2
Use R2 < 50 k to avoid significant voltage output errors
due to VA bias current.
Connecting VA directly to Q without R1 and R2 creates
an output voltage of 2.5 V.
Designers should consider the tolerance of R1 and R2
during the design phase.
The input voltage range for operation (pin 1) of the
adjustable version is between (V Q + 0.5 V) and 40 V.
Internal bias requirements dictate a minimum input voltage
of 4.5 V. The dropout voltage for output voltages less than
4.0 V is (4.5 V ? V Q ).
http://onsemi.com
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| NCV4279 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:AC-DC Offline Switching Controllers/Regulators |
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| NCV4279A50D1G | 功能描述:线性稳压器 - 标准 5.0V 150MA LDO RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| NCV4279A50D1R2G | 功能描述:线性稳压器 - 标准 5.0V 150MA LDO RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
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