参数资料
型号: MIC5249-1.8BMM
厂商: Micrel Inc
文件页数: 1/7页
文件大小: 0K
描述: IC REG LDO 1.8V .3A 8-MSOP
标准包装: 100
稳压器拓扑结构: 正,固定式
输出电压: 1.8V
输入电压: 2.7 V ~ 6 V
电压 - 压降(标准): 0.34V @ 300mA
稳压器数量: 1
电流 - 输出: 300mA
电流 - 限制(最小): 300mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 管件
MIC5249
300mA μCap LDO with
Programmable Power-On Reset Delay
General Description
Features
The MIC5249 is an efficient, precise 300mA CMOS
voltage regulator with power on reset (POR) delay which
can be implemented via an external capacitor. It offers 1%
initial accuracy, extremely low dropout voltage (typically
400mV @ 300mA), and low ground current (typically
85mA) over load.
Designed specifically for noise-critical applications in hand-
held or battery-powered devices, the MIC5249 comes
equipped with a noise reduction feature to filter the output
noise via an external capacitor. Other features of the
MIC5249 include a logic-compatible enable pin, current
limit, thermal shutdown, ultra-fast transient response, and
an active clamp to speed up device turnoff.
The MIC5249 also works with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in hand-held wireless
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300mA output current
High PSRR: 65dB@120Hz
Stable with ceramic output capacitor
Power-on-Reset (POR) output with adjustable delay
time
High output accuracy:
? ±1.0% initial accuracy
? ±3.0% over temperature
Low dropout voltage of 340mV @ 300mA
Low quiescent current: 85μA
Zero current shutdown mode
Thermal-shutdown and current-limit protection
Tiny MSOP-8 package
devices.
The MIC5249 is available in the MSOP-8 package.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com .
Applications
? Cellular phones
? PDAs
? Fiber optic modules
Typical Application
Ultra-Low Noise Application
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
March 2012
1
M9999-030812
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相关代理商/技术参数
参数描述
MIC5249-2.5BMM 功能描述:IC REG LDO 2.5V .3A 8-MSOP 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
MIC5249-2.5BMM TR 功能描述:IC REG LDO 2.5V .3A 8-MSOP 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
MIC5249-2.5YMM 功能描述:低压差稳压器 - LDO 300mA uCapl LDO with Reset(Lead Free) 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
MIC5249-2.5YMM TR 功能描述:低压差稳压器 - LDO 300mA uCapl LDO with Reset(Lead Free) 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
MIC5249-2.6BMM 功能描述:IC REG LDO 2.6V .3A 8-MSOP 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