参数资料
型号: AP1184T5-15L-U
厂商: Diodes Inc
文件页数: 7/12页
文件大小: 0K
描述: IC REG LDO 1.5V 4A TO220-5
标准包装: 1,000
稳压器拓扑结构: 正,固定式
输出电压: 1.5V
输入电压: 最高 16V
电压 - 压降(标准): 0.7V @ 4A
稳压器数量: 1
电流 - 输出: 4A
电流 - 限制(最小): 4.2A
工作温度: 0°C ~ 125°C
安装类型: 通孔
封装/外壳: TO-220-5
供应商设备封装: TO-220-5
包装: 管件
其它名称: AP1184T515L-U
AP1184T515L-UDI
AP1184T515L-UDI-ND
AP1184
4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Functional Descriptions
(Continued)
Assuming, the following conditions:
V out = 2.5V
V in = 3.3V
V ctrl = 5V
I out = 2A DC Avg.
Calculate the maximum power dissipation using the following equation:
P d = I out * ( V in - V out ) + ( I out /60) * ( V ctrl - V out )
P d = 2 * (3.3-2.5) + (2/60) * (5-2.5) = 1.68W
Using table below select the proper package and the amount of copper board needed.
Package
TO263-5L
Copper Area
Pad Size-1.4”X1.4”
θ JA ( o C/W)
25-45
Max Pd (T A = 25 o C)
2.4W-4.4W
Max Pd (T A = 45 o C)
2.0W-3.6W
Notes:
6. Above table is based on the maximum junction temperature of 135 o C.
As shown in the above table, any of the two packages will do the job.
AP1184 Rev. 5
7 of 12
www.diodes.com
SEPTEMBER 2008
? Diodes Incorporated
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