参数资料
型号: MIC5305-3.3BML TR
厂商: Micrel Inc
文件页数: 10/12页
文件大小: 0K
描述: IC REG LDO 3.3V .15A 6-MLF
标准包装: 5,000
稳压器拓扑结构: 正,固定式
输出电压: 3.3V
输入电压: 最高 5.5V
电压 - 压降(标准): 0.06V @ 150mA
稳压器数量: 1
电流 - 输出: 150mA
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: 6-VQFN 裸露焊盘,6-MLF?
供应商设备封装: 6-MLF?(2x2)
包装: 带卷 (TR)
其它名称: MIC5305-3.3BMLTR
MIC5305-3.3BMLTR-ND
Micrel, Inc.
Table 1 shows junction-to-ambient thermal resistance for
the MIC5305 in the 6-pin 2mm × 2mm MLF ? package.
MIC5305
minimum footprint layout, the maximum ambient
operating temperature T A can be determined as follows:
125 ° C ? T A
Package
6-Pin 2x2 MLF
?
θ JA Recommended
Minimum Footprint
93°C/W
θ JC
2°C/W
0.32W =
93 ° C/W
T A = 95.2°C
Table 1. 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
(the minimum amount of copper that you can solder the
part to) is 93°C/W, from Table 1. The maximum power
dissipation must not be exceeded for proper operation.
For example, when operating the MIC5305-2.9BML at
an input voltage of 5.0V and 150mA load with a
Therefore, a 2.9V application at 150mA of output current
can accept an ambient operating temperature of 95.2°C
in a 6-pin 2mm x 2mm MLF ? package. For a full dis-
cussion 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
June 2007
10
M9999-062507
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