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參數(shù)資料
| 型號： | MIC4043 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Low-Voltage Secondary-Side Shunt Regulator |
| 中文描述： | 低電壓二次側(cè)并聯(lián)穩(wěn)壓器 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 3293K |
| 代理商： | MIC4043 |
May 2000
5
MIC4043
MIC4043
Micrel
Functional Diagram
SNK
FB
IN
V
REF
1.245V
GND
MIC4043
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.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC4043_02 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Low-Voltage Secondary-Side Shunt Regulator |
| MIC4043_11 | 制造商:MIC 制造商全稱:MIC GROUP RECTIFIERS 功能描述:Low-Voltage Secondary-Side Shunt Regulator Final Information |
| MIC4043BM4 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC4043BM4 TR | 功能描述:IC REG SHUNT LOW VOLT SOT-143 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| MIC4043YM4 | 制造商:MIC 制造商全稱:MIC GROUP RECTIFIERS 功能描述:Low-Voltage Secondary-Side Shunt Regulator Final Information |
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