参数资料
| 型号： | MIC49500WU |
| 厂商： | Micrel Inc |
| 文件页数： | 9/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 5A TO-263-7 |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 0.7 V ~ 6 V |
| 输入电压： | 1.4 V ~ 6 V |
| 电压 - 压降（标准）： | 0.29V @ 5A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 5A |
| 电流 - 限制（最小）： | 5.5A |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-8，D²Pak（7 引线+接片），TO-263CA |
| 供应商设备封装： | TO-263-7 |
| 包装： | 管件 |
| 其它名称： | 576-2350 MIC49500WU-ND |
Micrel, Inc.
regulator. The low dropout properties of the MIC49500
allow significant reductions in regulator power
dissipation and the associated heat sink without
compromising performance. When this technique is
employed, a capacitor of at least 1μF is needed
directly between the input and regulator ground. Refer
to Application Note 9 for further details and examples
on thermal design and heat sink specification.
Minimum Load Current
The MIC49500, unlike most other high current
regulators, does not require a minimum load to
maintain output voltage regulation.
Power Sequencing
There is no power sequencing requirement for V IN and
V BIAS , giving more flexibility to the user.
MIC49500
Adjustable Regulator Design
The MIC49500 adjustable version allows
programming the output voltage anywhere between
0.7Vand 6V. Two resistors are used. The resistor
value between V OUT and the adjust pin should not
exceed 10k ? . Larger values can cause instability. The
resistor values are calculated by:
V OUT
R1 = R2 × –1
0.7
Where V OUT is the desired output voltage.
Enable
The fixed output voltage versions of the MIC49500
feature an active high enable input (EN) that allows
on-off control of the regulator. Current drain reduces
to “zero” when the device is shutdown, with only
microamperes of leakage current. The EN input has
TTL/CMOS compatible thresholds for simple logic
interfacing. EN may be directly tied to V IN and pulled
up to the maximum supply voltage.
July 2007
9
M9999-071307
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC49500WU TR | 功能描述:低压差稳压器 - LDO 5A LDO, Low Vin, Low Vout, Fast transient response, Cap stable (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 |
| MIC-5 | 功能描述:保险丝 250VAC 5A Fast Acting Indicating RoHS:否 制造商:Littelfuse 产品:Surface Mount Fuses 电流额定值:0.5 A 电压额定值:600 V 保险丝类型:Fast Acting 保险丝大小/组:Nano 尺寸:12.1 mm L x 4.5 mm W 安装风格: 端接类型:SMD/SMT 系列:485 |
| MIC5000AFLMGNHWS | 制造商:Vishay Dale 功能描述:THIN FILM RESISTOR,500 OHM,1%,200PPM - Waffle Pack |
| MIC5000BFLMGGHWS | 制造商:Vishay Dale 功能描述:THIN FILM RESISTOR,500 OHM,1%,200PPM - Waffle Pack |
| MIC5000BFLMGNHWS | 制造商:Vishay Dale 功能描述:THIN FILM RESISTOR,50 OHM,1%,200PPM - Waffle Pack |
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