参数资料
| 型号： | MIC4043BM4 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | IC REG SHUNT LOW VOLT SOT-143 |
| 标准包装： | 3,000 |
| 应用： | 转换器，电源 |
| 输入电压： | 10V |
| 输出数： | 1 |
| 输出电压： | 10V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-253-4，TO-253AA |
| 供应商设备封装： | SOT-143 |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC4043BM4TR MIC4043BM4TR-ND |
MIC4043
Functional Diagram
V REF
1.245V
MIC4043
IN
GND
SNK
FB
Micrel
Functional Description
The MIC4043 combines a G m amplifier, precision 1.245V
reference, and a pass transistor in a single package.
The operation of the MIC4043 is similar to conventional shunt
regulators such as the industry standard ’ 431. In a closed
loop system, the MIC4043 maintains the desired feedback
voltage at the FB pin by sinking current onto the SNK pin
proportional to the error voltage at the FB pin. The ratio of sink
current to error voltage is the transconductance of the device.
Reference
The MIC4043 uses a high-side reference . External voltage
dividers providing feedback to the MIC4043 will be inverted
when compared to those used with ’ 431-equivalent devices.
Behavior
The external feedback voltage is compared to the internal
high-side 1.245V reference.
If the feedback voltage, V FB , is less than V IN – V REF , the
amplifier provides no drive to the sink transistor. If the
feedback voltages is greater than V IN – V REF , the amplifier
drives the pass transistor which sinks current to ground.
November 2000
5
MIC4043
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相关代理商/技术参数 |
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| MIC4043YM4 | 制造商:MIC 制造商全称:MIC GROUP RECTIFIERS 功能描述:Low-Voltage Secondary-Side Shunt Regulator Final Information |
| MIC4043YM4 TR | 功能描述:直流/直流开关调节器 Low-voltage secondary-side shunt regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MIC4043YM4-TR | 功能描述:- Converter, Power Supplies Voltage Regulator IC 1 Output SOT-143 制造商:microchip technology 系列:- 包装:* 零件状态:停产 应用:转换器，电源 电压 - 输入:10V 输出数:1 电压 - 输出:10V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:TO-253-4，TO-253AA 供应商器件封装:SOT-143 标准包装:1 |
| MIC4100 | 制造商:MIC 制造商全称:MIC GROUP RECTIFIERS 功能描述:100V Half Bridge MOSFET Drivers |
| MIC4100_11 | 制造商:MIC 制造商全称:MIC GROUP RECTIFIERS 功能描述:100V Half Bridge MOSFET Drivers |
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