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LM2940-N - 产品图解：
LM2940-N-1A 低压降稳压器
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TI产品 - LM2940-N介绍

LM2940-N - 1A 低压降稳压器

LM2940-N是TI德州仪器公司的一款单通道LDO产品，LM2940-N是1A 低压降稳压器，本站介绍了LM2940-N的封装应用图解、特点和优点、功能等，并给出了与LM2940-N相关的TI元器件型号供参考。

LM2940-N - 1A 低压降稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品特性
  • Input Voltage Range = 6 V to 26 V
  • Dropout Voltage Typically 0.5 V at IOUT = 1 A
  • Output Current in Excess of 1 A
  • Output Voltage Trimmed Before Assembly
  • Reverse Battery Protection
  • Internal Short Circuit Current Limit
  • Mirror Image Insertion Protection
  • P+ Product Enhancement Tested
产品应用
  • Post Regulator for Switching Supplies
  • Logic Power Supplies
  • Industrial Instrumentation

产品说明

The LM2940-N and LM2940C positive voltage regulators feature the ability to source 1 A of output current with a dropout voltage of typically 0.5 V and a maximum of 1 V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN − VOUT ≤ 3 V).

Designed also for vehicular applications, the LM2940-N and LM2940C and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940-N and LM2940C cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LM2940-NSOT-223 (4)6.50 mm x 3.50 mm
WSON (8)4.00 mm x 4.00 mm
TO-263 (3)10.18 mm x 8.41 mm
TO-220 (3)14.986 mm x 10.16 mm
LM2940CTO-263 (3)10.18 mm x 8.41 mm
TO-220 (3)14.986 mm x 10.16 mm
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