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| 型号： | LT1581CT7#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC LDO REGULATOR 10A ADJ TO220-7 |
| 产品培训模块： | More Information on LDOs |
| 标准包装： | 50 |
| 应用： | 转换器，Intel Pentium? |
| 输入电压： | 1.68 V ~ 6 V |
| 输出数： | 1 |
| 输出电压： | 1.25 V ~ 4.65 V |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-7 成形引线 |
| 供应商设备封装： | TO-220-7 |
| 包装： | 管件 |
| 产品目录页面： | 1328 (CN2011-ZH PDF) |
LT1581/LT1581-2.5
10A, Very Low
Dropout Regulators
FEATURES
DESCRIPTIO N
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Low Dropout, 430mV at 10A Output Current
Fast Transient Response
Remote Sense
1mV Load Regulation
Fixed 2.5V Output and Adjustable Output
No Supply Sequencing Problems in
Dual Supply Mode
The LT ? 1581 is a 10A low dropout regulator designed to
power the new generation of microprocessors. The drop-
out voltage of this device is 100mV at light loads rising to
just 430mV at 10A. To achieve this dropout a second low
current input voltage 1V greater than the output voltage is
required. The device can also be used as a single supply
device where dropout is comparable to an LT1584.
Several other new features have been added to the LT1581.
APPLICATIO N S
A remote SENSE pin is brought out. This feature virtually
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Microprocessor Supplies
Post Regulators for Switching Supplies
High Current Regulators
5V to 3.XXV for Pentium ? Processors Operating
at 90MHz to 166MHz and Beyond
3.3V to 2.9V for Portable Pentium Processor
PowerPC TM Series Power Supplies
eliminates output voltage variations due to load changes.
Typical load regulation for a load current step of 100mA to
10A, measured at the SENSE pin, is less than 1mV.
The LT1581 has fast transient response, equal to the
LT1584. On fixed voltage devices, the ADJUST pin is
brought out. A small capacitor on the ADJUST pin further
improves transient response.
This device is ideal for generating processor supplies of
2V to 3V on motherboards where both 5V and 3.3V
supplies are available.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Pentium is a registered trademark of Intel Corporation.
PowerPC is a trademark of IBM Corporation.
TYPICAL APPLICATIO N
Dropout Voltage –
2.5V Microprocessor Supply
0.8
Minimum Power Voltage
3.3V
10A
+
330 μ F
OS-CON
POWER OUTPUT
LT1581-2.5
2.5V/10A
+
100 μ F TANT
AVX TPS
× 7
0.7
0.6
0.5
INDICATES GUARANTEED TEST POINTS
DATA SHEET LIMIT
0.4
5V
0.2A
+
10 μ F
TANT
CONTROL
GND
SENSE
ADJ
0.3
0.2
T J = 25 ° C
T J = 125 ° C
0.1 μ F
1581 TA01
0.1
0
0
1
2
3
4
5
6 7 8
9
10
OUTPUT CURRENT (A)
1581 G03
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1584 | 制造商:LINER 制造商全称:Linear Technology 功能描述:7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed |
| LT1584/5/7 | 制造商:LINER 制造商全称:Linear Technology 功能描述:7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed |
| LT1584/5/7-3.3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed |
| LT1584/5/7-3.45 | 制造商:LINER 制造商全称:Linear Technology 功能描述:7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed |
| LT1584/5/7-3.6 | 制造商:LINER 制造商全称:Linear Technology 功能描述:7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed |
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