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参数资料
| 型号： | MIC5205-3.1BM5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 9/10页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.1V .15A SOT23-5 |
| 标准包装： | 3,000 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.1V |
| 输入电压： | 最高 16V |
| 电压 - 压降（标准）： | 0.165V @ 150mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC5205-3.1BM5TR MIC5205-3.1BM5TR-ND |
V OUT = 1.242V × ?
+ 1 ?
Micrel
V IN(max) = 6.23V
Therefore, a 3.3V application at 150mA of output current
can accept a maximum input voltage of 6.2V in a SOT-
23-5 package. For a full discussion of heat sinking and
thermal effects on voltage regulators, refer to the
Regulator Thermals section of Micrel’s Designing with
Low-Dropout Voltage Regulators handbook.
Fixed Regulator Applications
MIC5205
resistors set the output voltage based on the following
equation:
? R2 ?
? R1 ?
This equation is correct due to the configuration of the
bandgap reference. The bandgap voltage is relative to
the output, as seen in the block diagram. Traditional
regulators normally have the reference voltage relative
to ground and have a different V OUT equation.
Resistor values are not critical because ADJ (adjust) has
a high input impedance, but for best results use resistors
of 470k ? or less. A capacitor from ADJ to ground
provides greatly improved noise performance.
Figure 1. Ultra-Low-Noise Fixed Voltage Application
Figure 1 includes a 470pF capacitor for low-noise
operation and shows EN (pin 3) connected to IN (pin 1)
for an application where enable/shutdown is not
required. C OUT = 2.2μF minimum.
Figure 3. Ultra-Low-Noise
Adjustable Voltage Application
Figure 3 includes the optional 470pF noise bypass
capacitor from ADJ to GND to reduce output noise.
Figure 2. Low-Noise Fixed Voltage Application
Figure 2 is an example of a low-noise configuration
where C BYP is not required. C OUT = 1μF minimum.
Adjustable Regulator Applications
The MIC5205BM5 can be adjusted to a specific output
voltage by using two external resistors (Figure 3). The
Dual-Supply Operation
When used in dual supply systems where the regulator
load is returned to a negative supply, the output voltage
must be diode clamped to ground.
February 2006
9
M9999-020806
(408) 955-1690
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC520533BM5 | 制造商:MICREL 功能描述:New |
| MIC520533BM5TR | 制造商:MICREL 功能描述:New |
| MIC5205-4.0BM5 | 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC5205-4.0BM5 TR | 功能描述:IC REG LDO 4V .15A SOT23-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:500 系列:- 稳压器拓扑结构:正，固定式 输出电压:12V 输入电压:14.5 V ~ 35 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:500mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:TO-205AD，TO-39-3 金属罐 供应商设备封装:TO-39 包装:散装 其它名称:*LM78M12CH*LM78M12CH/NOPBLM78M12CH |
| MIC5205-4.0YM5 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:150mA Low-Noise LDO Regulator |
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