参数资料
型号: MIC5239-1.8BM TR
厂商: Micrel Inc
文件页数: 1/14页
文件大小: 0K
描述: IC REG LDO 1.8V .5A 8-SOIC
标准包装: 2,500
稳压器拓扑结构: 正,固定式
输出电压: 1.8V
输入电压: 2.3 V ~ 30 V
电压 - 压降(标准): 0.35V @ 500mA
稳压器数量: 1
电流 - 输出: 500mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
其它名称: MIC5239-1.8BMTR
MIC5239-1.8BMTR-ND
MIC5239
Low Quiescent Current 500mA μCap
LDO Regulator
General Description
Features
The MIC5239 is a low quiescent current, μCap low-dropout
regulator. With a maximum operating input voltage of 30V
and a quiescent current of 23μA, it is ideal for supplying
keep-alive power in systems with high voltage batteries.
Capable of 500mA output, the MIC5239 has a dropout
voltage of only 350mV. It can provide high output current
for applications such as USB.
As a μCap LDO, the MIC5239 is stable with either a
ceramic or a tantalum output capacitor. It only requires a
3.3μF output capacitor for stability.
The MIC5239 includes a logic compatible enable input and
an undervoltage error flag indicator. Other features of the
MIC5239 include thermal shutdown, current limit, overvolt-
age shutdown, reverse-leakage protection, and reverse-
battery protection.
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Ultra-low quiescent current (I Q = 23μA @I O = 100μA)
Continuous 500mA output current
Wide input range: 2.3V to 30V
Low dropout voltage: 350mV @500mA
±1.0% initial output accuracy
Stable with ceramic or tantalum output capacitor
Logic compatible enable input
Low output voltage error flag indicator
Overcurrent protection
Thermal shutdown
Reverse-leakage protection
Reverse-battery protection
High-power SOIC-8, MSOP-8 and SOT-223 packages
Available in the thermally enhanced SOIC-8, MSOP-8 and
SOT-223, the MIC5239 comes in fixed 1.5V, 1.8V, 2.5V,
3.0V, 3.3V and 5.0V, and adjustable voltages. For other
output voltages, contact Micrel.
All support documentation can be found on Micrel’s web
site at: www.micrel.com.
Applications
? USB power supply
? Keep-alive supply in notebook and portable personal
computers
? Logic supply from high voltage batteries
? Automotive electronics
? Battery-powered systems
___________________________________________________________________________________________________________
Typical Application
40
V IN
30V
MIC5239
IN OUT
FLG
EN
GND
V OUT
3.0V/100μA
I GND = 23μA
35
30
25
20
15
I OUT = 1mA
I OUT = 10μA
I OUT = 100μA
Regulator with Low I O and Low I Q
10
4
9
14
19
24
29
Ground Current vs. Input Voltage
MLF and Micro LeadFrame is a registered trademark of Amkor Technologies
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
December 2007
M9999-121007
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MIC5239-2.5BM 功能描述:IC REG LDO 2.5V .5A 8-SOIC 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
MIC5239-2.5BM TR 功能描述:IC REG LDO 2.5V .5A 8-SOIC 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
MIC5239-2.5BMM 功能描述:IC REG LDO 2.5V .5A 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
MIC5239-2.5BMM TR 功能描述:IC REG LDO 2.5V .5A 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
MIC5239-2.5BS 功能描述:IC REG LDO 2.5V .5A SOT-223 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