参数资料
型号: MIC5265-3.2YD5
厂商: Micrel Inc
文件页数: 10/11页
文件大小: 0K
描述: IC REG LDO 3.2V .15A TSOT23-5
标准包装: 1
稳压器拓扑结构: 正,固定式
输出电压: 3.2V
输入电压: 最高 5.5V
电压 - 压降(标准): 0.21V @ 150mA
稳压器数量: 1
电流 - 输出: 150mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SOT-23-5 细型,TSOT-23-5
供应商设备封装: TSOT-23-5
包装: 散装
125 ° C ? T A
Micrel, Inc.
MIC5265 Junction-To-Ambient Thermal Resistance
Package θ JA Recommended θ JA 1” Sq. θ JC
Minimum Footprint Copper Clad
0 . 33 W =
235 ° C / W
TA = 47.45°C
MIC5265
SOT-23-5
(M5 or D5)
235°C/W
125°C
145°C/W
Therefore, a 2.8V application at 150mA of output current
can accept an ambient operating temperature of 47°C in
Thermal Resistance
Substituting PD for PD(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
235 C/W. The maximum power dissipation must not be
exceeded for proper operation.
For example, when operating the MIC5265-2.8YD5 at an
input voltage of 5.0V at 150mA with a minimum footprint
layout, the maximum ambient operating temperature TA
can be determined as follows:
a SOT-23-5 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:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
February 2007
10
M9999-022307
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