参数资料
型号: MIC5301-4.6YD5 TR
厂商: Micrel Inc
文件页数: 9/11页
文件大小: 0K
描述: IC REG LDO 4.6V .15A TSOT23-5
标准包装: 3,000
稳压器拓扑结构: 正,固定式
输出电压: 4.6V
输入电压: 最高 5.5V
电压 - 压降(标准): 0.04V @ 150mA
稳压器数量: 1
电流 - 输出: 150mA
电流 - 限制(最小): 275mA
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: 带卷 (TR)
其它名称: MIC5301-4.6YD5TR
MIC5301-4.6YD5TR-ND
?
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:
? T J(MAX) - T A
P D(MAX) =
JA
T J(max) = 125°C, the maximum junction temperature of
the die θ JA thermal resistance = 100°C/W.
The table below shows junction-to-ambient thermal
resistance for the MIC5301 in the 6-pin 1.6mm x
1.6mm MLF ? package.
MIC5301
The maximum power dissipation must not be
exceeded for proper operation.
For example, when operating the MIC5301-2.8YML at
an input voltage of 5V and 150mA load with a
minimum footprint layout, the maximum ambient
operating temperature T A can be determined as
follows:
0.33W = (125°C – T A )/(100°C/W)
T A =92°C
Therefore, a 2.8V application with 150mA of output
current can accept an ambient operating temperature
of 92°C in a 1.6mm x 1.6mm MLF ? package. For a full
Package
θ JA Recommended
Minimum Footprint
discussion of heat sinking and thermal effects on
voltage regulators, refer to the “Regulator Thermals”
section of Micrel’s Designing with Low-Dropout
Thin MLF
6-Pin 1.6x1.6 MLF
6-Pin 1.6x1.6
?
?
100°C/W
100°C/W
Voltage Regulators handbook. This information can
be found on Micrel's website at:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
Thermal Resistance
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 100°C/W.
April 2008
9
M9999-042108
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