LM2940T-10.0 Part Information

Details for LM2940T-10.0 by Texas Instruments

Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators

Part Description

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 LM2940N and LM2940C and all regulated circuitry are protected from reverse battery installations or 2battery 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 mirrorimage insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

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Part Features

  • Dropout Voltage Typically 0.5 V at IOUT = 1 A
  • Input Voltage Range = 6 V to 26 V
  • Internal Short Circuit Current Limit
  • Mirror Image Insertion Protection
  • Output Current in Excess of 1 A
  • Output Voltage Trimmed Before Assembly
  • P+
  • Reverse Battery Protection

Part Specifications

Output Type Fixed
Input Voltage Min 0V
Input Voltage Max 26V
Fixed Output Voltage Nom. 10V
Adjustable Output Voltage Min -
Adjustable Output Voltage Max -
Output Current 1A
Dropout Voltage Vdo 500mV
LDO Regulator Case Style TO-220
No. of Pins 3Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range 10V 1A LDO Voltage Regulators
Automotive Qualification Standard -
MSL -
SVHC No SVHC (27-Jun-2018)
Base Number 2940
Device Marking LM2940T-10.0
IC Generic Number 2940
No. of Outputs 1Outputs
Operating Temperature Range -40°C to +125°C
Output Voltage Nom. 10V
Primary Input Voltage 15V
Supply Voltage Max 26V
Supply Voltage Min 11.5V
Voltage Regulator Type Positive Fixed LDO
RoHS Compliant

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