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参数资料
| 型号： | MIC49300-0.9BR |
| 厂商： | Micrel Inc |
| 文件页数： | 8/10页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 0.9V 3A SPAK-5 |
| 标准包装： | 48 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 0.9V |
| 输入电压： | 1.4 V ~ 6.5 V |
| 电压 - 压降（标准）： | 0.28V @ 3A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 3A |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SPAK-5 |
| 供应商设备封装： | S-PAK-5 |
| 包装： | 管件 |
Micrel, Inc.
prop erties of the MIC49300 allow signi?cant reductions in
regulator power dissipation and the associated heat sink
without compromising performance. When this technique
MIC49300
the adjust pin should not exceed 1kΩ. Larger values can
cause instability. The resistor values are calculated by:
R 1 ? R 2 ? ?
? 1 ?
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 speci?cation.
? V OUT
? 0 . 9
?
?
Equation 2
Minimum Load Current
The MIC49300, 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 ?exibility to the user.
Adjustable Regulator Design
The MIC49300 adjustable version allows programming
the output voltage anywhere between 0.9Vand 5V. Two
resistors are used. The resistor value between V OUT and
Where VOUT is the desired output voltage.
Enable
The ?xed output voltage versions of the MIC49300
feature an active high enable input (EN) that allows on-off
control of the regulator. Current drain reduces to “zero”
when the device is shut down, 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.
January 22, 2014
8
Revision 3.0
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相关代理商/技术参数 |
参数描述 |
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| MIC49300-1.2BR | 功能描述:IC REG LDO 1.2V 3A SPAK-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.8V 输入电压:最高 16V 电压 - 压降（标准）:0.3V @ 80mA 稳压器数量:1 电流 - 输出:80mA 电流 - 限制（最小）:- 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:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC49300-1.2BR TR | 功能描述:IC REG LDO 1.2V 3A SPAK-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.8V 输入电压:最高 16V 电压 - 压降（标准）:0.3V @ 80mA 稳压器数量:1 电流 - 输出:80mA 电流 - 限制（最小）:- 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:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC49300-1.2WR | 功能描述:低压差稳压器 - LDO Dual Supply, LV 3.0A LDO(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 |
| MIC49300-1.2WR TR | 功能描述:低压差稳压器 - LDO Dual Supply, LV 3.0A LDO(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 |
| MIC49300-1.2WRTR | 制造商:Micrel Semiconductor 功能描述:Cut Tape |
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