TLV1117IKTPR

Voltage Dropout (Max):	1.3V @ 800mA
Base Part Number:	TLV1117
Supplier Device Package:	2-PowerFLEX™
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	75dB (120Hz)
Current - Output:	800mA
Series:	--
Voltage - Output (Max):	13.7V
Voltage - Output (Min/Fixed):	1.25V
Voltage - Input (Max):	15V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The TLV1117IKTPR is a device meant to regulate the output voltage of power supply systems. It is a three-terminal linear voltage regulator. It finds application in various equipment and products, mainly in automotive applications. This article will discuss the working principle, application fields and some of the features of the TLV1117IKTPR linear voltage regulator.

Features

The TLV1117IKTPR linear voltage regulator provides an output current of 4A and is optimized for use in car electronics and other mobile applications. It is offered in the 8-pin SOIC package, with a wide range of operating temperature from -40 to + 85 °C. It has a low drop-out voltage, of only 138mV at 4A output current and a fold-back protection circuit prevents destructive output current for near zero input overvoltage. The TLV1117IKTPR linear voltage regulator also has a variety of features such as:• Low drop out voltage• Low ground current• Over voltage protection• Over temperature protection• Low quiescent current• Low shutdown current

Working Principle

The TLV1117IKTPR is an adjustable voltage regulator, with a voltage range of 1.3V to 13.5V and output current up to 4A. It uses a reference voltage of 1.21V, which is compared to an external resistor divider at the adjust pin (adj) to adjust the output voltage. The linear voltage regulator works by controlling a pass transistor that is connected between the output voltage (Vout) and the input voltage (Vin). When the voltage at the adjust pin is lower than the reference voltage, the pass transistor is on and allows current from Vin to pass through, thus bringing Vout closer to Vin. If the voltage at the adj pin is higher than the reference voltage, the pass transistor is off, preventing current from passing through, thus bringing Vout closer to the reference voltage.

Application Fields

The TLV1117IKTPR linear voltage regulator is mainly used in applications such as automotive power supply systems. Due to its wide range of operating temperature, it is suitable for use in a variety of environments, from completely harsh environments such as under the hood of a car to low temperature environment, such as in the trunk compartment. It is also used in high power applications such as server and communication systems. It is suitable for both AC and DC voltage application, thus allowing high flexibility in its usage.

Conclusion

In conclusion, the TLV1117IKTPR linear voltage regulator is an ideal device for automotive applications and other high power applications. Its wide range of temperature operating and low drop out voltage make it suitable for use in a variety of applications. It features a fold-back current limiting circuit which prevents overtemperature and overvoltage, making it a safe and reliable device.

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