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参数资料
| 型号： | IRU1150CPTR |
| 厂商： | International Rectifier |
| 文件页数： | 5/9页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 4A 5-UTHINPAK |
| 标准包装： | 2,000 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.25 V ~ 5.5 V |
| 输入电压： | 最高 7V |
| 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： | 表面贴装 |
| 封装/外壳： | TO-252-6，DPak（5 引线 + 接片） |
| 供应商设备封装： | 5-Ultra Thin-Pak? |
| 包装： | 带卷 (TR) |
| 其它名称： | IRU1150-CPTR IRU1150-CPTR-ND |
IRU1150(PbF)
( I 60 ) × (V - V )
P D = I OUT × (V IN - V OUT )+
Stability
The IRU1150 requires the use of an output capacitor as
part of the frequency compensation in order to make the
regulator stable. Typical designs for the microprocessor
applications use standard electrolytic capacitors with
typical ESR in the range of 50 to 100m ? and an output
capacitance of 500 to 1000 μ F. Fortunately as the ca-
pacitance increases, the ESR decreases resulting in a
fixed RC time constant. The IRU1150 takes advantage
of this phenomena in making the overall regulator loop
stable.
Assuming, the following conditions:
V OUT = 2.7V
V IN = 3.3V
V CTRL = 5V
I OUT = 2A (DC Avg)
Calculate the maximum power dissipation using the fol-
lowing equation:
OUT
CTRL OUT
P = 2 × (3.3 - 2.7)+ (
60 )
× (5 - 2.7) = 1.28W
For most applications a minimum of 100 μ F aluminum
electrolytic capacitor such as Sanyo, MVGX series,
D
2
Panasonic FA series as well as the Nichicon PL series
insures both stability and good transient response.
Using table below select the proper package and the
amount of copper board needed.
Thermal Design
The IRU1150 incorporates an internal thermal shutdown
Pkg
Copper
Area
θ JA ( ° C/W)
Max Pd
( T A =25 ° C )
Max Pd
( T A =45 ° C )
that protects the device when the junction temperature
exceeds the allowable maximum junction temperature.
Although this device can operate with junction tempera-
tures in the range of 150 C, it is recommended that the
selected heat sink be chosen such that during maxi-
TO-263
TO-263
TO-263
TO-263
SO-8
1.4"X1.4" 25
1.0"X1.0" 30
0.7"X0.7" 35
Pad Size 45
1.0"X1.0" 55
4.4W
3.7W
3.1W
2.4W
2.0W
3.6W
3.0W
2.6W
2.0W
1.63W
mum continuous load operation the junction tempera-
ture is kept below this number. The example below
shows the steps in selecting the proper surface mount
Note: Above table is based on the maximum junction
temperature of 135 C.
package.
As shown in the above table, any of the two packages
will do the job. For low cost applications the SOIC 8-pin
package is recommended.
www.irf.com
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRU1150CS | 制造商:IRF 制造商全称:International Rectifier 功能描述:4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR |
| IRU1150CSTR | 功能描述:IC REG LDO ADJ 4A 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:4V 输入电压:最高 16V 电压 - 压降（标准）:0.28V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:5-VFBGA 供应商设备封装:5-uSMD 包装:Digi-Reel® 其它名称:LP2985AIBP-4.0DKR |
| IRU1150CSTRPBF | 功能描述:IC REG LDO ADJ 4A 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:500 系列:- 稳压器拓扑结构:正，固定式 输出电压:12V 输入电压:14.5 V ~ 35 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:500mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:TO-205AD，TO-39-3 金属罐 供应商设备封装:TO-39 包装:散装 其它名称:*LM78M12CH*LM78M12CH/NOPBLM78M12CH |
| IRU1160 | 制造商:IRF 制造商全称:International Rectifier 功能描述:6A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR |
| IRU1160CM | 功能描述:IC REG LDO ADJ 6A TO-263-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:4V 输入电压:最高 16V 电压 - 压降（标准）:0.28V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:5-VFBGA 供应商设备封装:5-uSMD 包装:Digi-Reel® 其它名称:LP2985AIBP-4.0DKR |
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