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| 型号： | MIC29710-3.3WT |
| 厂商： | Micrel Inc |
| 文件页数： | 9/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 7.5A 3.3V TO220-3 |
| 标准包装： | 50 |
| 应用： | 转换器，Intel Pentium? Plus |
| 输入电压： | 2.25 V ~ 16 V |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-3 |
| 供应商设备封装： | TO-220-3 |
| 包装： | 管件 |
| 产品目录页面： | 1107 (CN2011-ZH PDF) |
| 其它名称： | 576-2251 MIC29710-3.3WT-ND |
R1 = R2 × ? ? OUT ? 1 ? ?
Micrel, Inc.
Adjustable Regulator Design
The adjustable regulator version, MIC29712, allows pro-
gramming the output voltage anywhere between 1.25V
and the 16V maximum operating rating of the family.
Two resistors are used. Resistors can be quite large, up
to 100k ? , because of the very high input impedance and
low bias current of the sense comparator. The resistor
values are calculated by:
? V ?
? 1.240 ?
Where V O is the desired output voltage. Figure 4 shows
component definition.
MIC29710/29712
Enable Input
The MIC29712 versions features an enable (EN) input
that allows ON/OFF control of the device. Special design
allows “zero” current drain when the device is disabled—
only micro-amperes of leakage current flows. The EN
input has TTL/CMOS compatible thresholds for simple
interfacing with logic, or may be directly tied to V IN .
Enabling the regulator requires approximately 20μA of
current into the EN pin.
Minimum Load Current
The MIC29710/12 regulators are specified between finite
loads. If the output current is to small, leakage currents
dominate and the output voltage rises. A 10mA minimum
load current is necessary for proper regulation.
MIC29712BT
Voltage
2.85
Standard ( ? )
R1 R2
100k 76.8k
2.9
3.0
3.1
3.15
3.3
100k
100k
100k
100k
100k
75.0k
69.8k
66.5k
64.9k
60.4k
VIN
VOUT
3.45
100k
56.2k
4.75 to 5.25
10μF
R1
100k
33μF
3.45V
3.525
3.6
93.1k
100k
51.1k
52.3k
R2
56.2k
3.8
4.0
4.1
100k
100k
100k
48.7k
45.3k
43.2k
VOUT = 1.240V× [1 + (R1 / R2)]
Figure 4. Adjustable Regulator with Resistors
Figure 5. MIC29712 Resistor Table
October 2006
9
M9999-101906
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC29710-5.0BT | 功能描述:IC REG LDO 7.5A 5V TO220-3 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| MIC29710-5.0WT | 功能描述:低压差稳压器 - LDO 7.5A LDO Fixed Voltage (ROHS Compliant ) 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 |
| MIC29712BT | 功能描述:IC REG LDO 7.5A ADJ TO-220-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| MIC29712BT L2 | 制造商:Micrel 功能描述:The Micrel MIC29712BT L2 is a Low Dropout Voltage Regulator. |
| MIC29712WT | 功能描述:低压差稳压器 - LDO 7.5A LDO Adj. + Shutdown (ROHS Compliant ) 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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