TCR3DF12,LM(CT

Current - Output:	300mA
Supplier Device Package:	SMV
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	78µA
Current - Quiescent (Iq):	65µA
Series:	--
Voltage Dropout (Max):	0.62V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.2V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

TCR3DF12 LM is a voltage regulator made by Texas Instruments. It is one of the linear voltage regulator devices in the TI voltage regulator family. It is a cost-effective, low-noise and low-output voltage option for CT application field.

Application Field

It is designed for use in high-end industrial, automotive and consumer products. It is used to make DC power sources, such as power supplies, regulating DC voltage and current over long distances. Additionally, it is useful in providing a fixed output voltage to many electronic components such as microprocessors, or to increase the reliability of a power distribution network.

Working Principle

The TCR3DF12 LM has operating voltage range from 4.5V to 30V and a temperature range from -40°C to +125°C. The LM works as a linear regulator device. It takes an input signal, usually a DC signal, and maintains it at a fixed voltage regardless of a varying load or varying input voltage. It achieves this by consuming the excess energy from the input signal that is not needed to maintain the desired output voltage. The device will consume less power when the load current decreases, still maintaining the desired output level.

Features

The LM provides up to 18A of continuous output current and direct output connection in order to reduce trace resistance. It also incorporates thermal shutdown to protect the circuit from any thermal events, overvoltage, and reverse current protection. The on-chip precision reference has a typical accuracy of 0.5µV/V, and is adjustable ten times to meet customer requirements.

Conclusion

The TCR3DF12 LM is a robust and reliable linear voltage regulator that can efficiently provide a fixed DC voltage under varying load or input voltage levels. Its features make it attractive to design engineers in the consumer, automotive, and high-end industrial markets.

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