参数资料
型号: MIC47300WD TR
厂商: Micrel Inc
文件页数: 8/11页
文件大小: 0K
描述: IC REG LDO ADJ 3A TO-252-5
标准包装: 1
稳压器拓扑结构: 正,可调式
输出电压: 可调至 0.9V
输入电压: 1.4 V ~ 6.5 V
电压 - 压降(标准): 0.23V @ 3A
稳压器数量: 1
电流 - 输出: 3A
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: TO-252-6,DPak(5 引线 + 接片)
供应商设备封装: TO-252-5
包装: 标准包装
其它名称: 576-3617-6
Micrel, Inc.
MIC47300
capacitor of at least 1μF is needed directly between the
would not exceed the
IC’s
maximum
junction
input and regulator ground. Refer to “ Application Note 9 ”
for further details and examples on thermal design and
heat sink speci ? cation.
The maximum power allowed can be calculated using
the thermal resistance ( θ JA ) of the D-Pak adhering to the
following criteria for the PCB design: 2 oz. copper and
100mm 2 copper area for the MIC47300. Given a
maximum ambient temperature (T A =75°C), and without
the use of a heat sink, the maximum power allowed that
temperature (125 ° C) is
P D(MAX) = (T J(MAX) – T A )/ θ JA = (125 ° C – 75 ° C)/(56 ° C/W)
= 0.893W
Minimum Load Current
The MIC47300, unlike most other high current
regulators, does not require a minimum load to maintain
output voltage regulation.
October 2009
8
M9999-102309-A
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