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See Technical Specifications

LM2940CT-12 +BOM

LDO Regulator Pos 12V 1A Automotive 3-Pin(3+Tab) TO-220 Tube

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM2940CT-12
Datasheet:

LM2940CT-12 Datasheet (PDF)
Output Configuration:

Positive
Output Type:

Fixed
Number Of Regulators:

1
Voltage - Input (Max):

26V
EDA/CAD Models:

Request Free CAD Models for LM2940CT-12

LM2940CT-12 General 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 (V_IN − V_OUT ≤ 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.

Key Features

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

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - Linear	Series	-
Output Configuration	Positive	Output Type	Fixed
Number of Regulators	1	Voltage - Input (Max)	26V
Voltage - Output (Min/Fixed)	12V	Voltage - Output (Max)	-
Voltage Dropout (Max)	0.8V @ 1A	Current - Output	1A
Current - Quiescent (Iq)	10 mA	Current - Supply (Max)	15 mA
PSRR	66dB (120Hz)	Control Features	-
Protection Features	Over Current, Over Temperature, Reverse Polarity, Short Circuit	Operating Temperature	0°C ~ 125°C
Mounting Type	Through Hole	Base Product Number	LM2940