The LM2940CT-12 is a low dropout Positive Voltage Regulator features the ability to source 1A of output current with a dropout voltage of 12V and a maximum of 1V 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 3V. The quiescent current with 1A of output current and an input-output differential of 5V is therefore only 30mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN – VOUT <= 3 V). Designed also for vehicular applications, this regulator has a regulated circuitry which 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.

• Output voltage trimmed before assembly
• Reverse battery protection
• Internal short-circuit current limit
• Mirror image insertion protection
• P+ Product enhancement tested
• Tantalum non-ceramic output capacitor

Applications

Industrial, Power Management, Sensing & Instrumentation

Product details

Output Type: Fixed Input Voltage Min: 0V Input Voltage Max: 26V No. of Outputs: 1Outputs Output Voltage Nom: 12V Output Voltage Min: – Output Voltage Max: – Polarity: Positive Output Output Current Max: 1A Dropout Voltage Typ @ Current: 500mV IC Mounting: Through Hole IC Case / Package: TO-220 No. of Pins: 3Pins Operating Temperature Min: 0C Operating Temperature Max: 125C Product Range: 12V 1A LDO Voltage Regulators MSL: –

Other details

Brand TEXAS INSTRUMENTS Part Number LM2940CT-12/NOPB Quantity Each Technical Data Sheet EN

All product and company names are trademarks or registered trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.