参数资料
型号: MIC5332-J4YMT TR
厂商: Micrel Inc
文件页数: 10/13页
文件大小: 0K
描述: IC REG LDO 2.5V/1.2V .3A 8TMLF
标准包装: 1
稳压器拓扑结构: 正,固定式
输出电压: 2.5V,1.2V
输入电压: 2.3 V ~ 5.5 V
电压 - 压降(标准): 0.12V @ 300mA
稳压器数量: 2
电流 - 输出: 300mA
电流 - 限制(最小): 350mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-VFDFN 裸露焊盘,8-MLF?
供应商设备封装: 8-MLF?(2x2)
包装: 标准包装
产品目录页面: 1104 (CN2011-ZH PDF)
其它名称: 576-3158-6
Micrel, Inc.
To determine the maximum ambient operating
temperature of the package, use the junction-to-ambient
thermal resistance of the device and the following basic
equation:
MIC5332
P D(MAX) = ? ?
?
?
? T J(MAX) ? T A
? θ JA
?
?
T J(max) = 125°C, and the maximum junction temperature
of the die, θ JA , thermal resistance = 90°C/W.
Substituting P D for P D(max) and solving for the ambient
operating temperature will give the maximum operating
conditions for the regulator circuit. The junction-to-
ambient thermal resistance for the minimum footprint is
90°C/W.
The maximum power dissipation must not be exceeded
for proper operation.
For example, when operating the MIC5332-PMYMT at
an input voltage of 3.6V and 300mA loads at each output
with a minimum footprint layout, the maximum ambient
operating temperature T A can be determined as follows:
0.42W = (125°C – T A )/(90°C/W)
T A = 87.2°C
Therefore, a 3.0V/2.8V application with 300mA at each
output current can accept an ambient operating
temperature of 87°C in a 2mm x 2mm MLF package. For
a full discussion of heat sinking and thermal effects on
voltage regulators, refer to the “Regulator Thermals”
section of Micrel’s Designing with Low-Dropout Voltage
Regulators handbook. This information can be found on
Micrel's website at:
September 2012
10
M9999-091212-B
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