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LM3940IT-3.3/NOPB .

固定电压稳压器, LDO, 0V至7.5V, 500mV压差, 3.3V输出, 1A输出, TO-220-3

TEXAS INSTRUMENTS LM3940IT-3.3/NOPB .
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制造商产品编号:
LM3940IT-3.3/NOPB .
库存编号
1469106
产品范围
3.3V 1A LDO Voltage Regulators

产品范围选择器 (3.3V 1A LDO Voltage Regulators)

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LM3940IT-3.3/NOPB . 的替代之选

产品概述

The LM3940IT-3.3/NOPB is a 1A Low-dropout Regulator, designed to provide 3.3 from a 5-V supply. The LM3940 is ideally suited for systems which contain both 5 and 3.3V logic, with prime power provided from a 5V bus. Because the LM3940 is a true low dropout regulator, it can hold its 3.3V output in regulation with input voltages as low as 4.5V. Output voltage accuracy specifies minimum and maximum output voltage error, relative to the expected nominal output voltage. The internal current limit circuit is used to protect the LDO against high-load current faults or shorting events. During a current-limit event, the LDO sources constant current. The LM3940 contains a thermal shutdown protection circuit to turn off the output current when excessive heat is dissipated in the LDO. The thermal time-constant of the semiconductor die is fairly short and thus the output cycles on and off at a high rate when thermal shutdown is reached until the power dissipation is reduced.
  • 4.5 to 5.5V Input voltage range
  • Output voltage specified over-temperature
  • Excellent load regulation
  • Requires only one external component
  • Built-in protection against excess temperature
  • Short-circuit protection
  • Green product and no Sb/Br

应用

计算机和计算机周边, 电源管理

产品信息

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:
固定

:
0V

:
7.5V

:
3.3V

:
-

:
-

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1A

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500mV

:
TO-220

:
3引脚

:
-40°C

:
125°C

:
3.3V 1A LDO Voltage Regulators

:
-

:
-
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