LF27CDT-TR

Current - Output:	500mA
Base Part Number:	LF27
Supplier Device Package:	DPAK
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:	82dB ~ 65dB (120Hz ~ 10kHz)
Current - Supply (Max):	12mA
Current - Quiescent (Iq):	1mA
Series:	--
Voltage Dropout (Max):	0.7V @ 500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.7V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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• Introduction

Linear voltage regulators (LVRs) play a critical role in a variety of applications, and are used to obtain the precise voltage levels required for different circuits and components. The LF27CDT-TR is an 8-pin voltage regulator device designed for use in mobile applications. The device operates from an input voltage of 4 V to 15 V and can reduce input voltage levels by any amount up to 9 V, with a maximum output current of up to 200 mA. This article examines the application field and working principle of the LF27CDT-TR linear voltage regulator.

• Application Field

Due to its wide input voltage range and flexibility in output current, the LF27CDT-TR is well-suited for a variety of application fields. Mobile devices, such as smartphones and tablets, rely on robust linear voltage regulators to climate fluctuations in input voltage and deliver the precise output needed by different components. The LF27CDT-TR is used in many mobile applications to regulate the voltage and power supply to different components.The LF27CDT-TR can also be used in industrial applications, including motors and control systems, as well as automotive applications, such as electronic control units and navigation systems. It is well-suited for these applications due to its ability to precisely regulate the voltage levels required by each component in the system.

• Working Principle

The LF27CDT-TR utilizes a three-terminal voltage regulator design to deliver a precise and stable output voltage from a wide input voltage range. The device operates by comparing the output voltage to a reference voltage in order to maintain a precise output voltage level. The voltage regulator regulates the output voltage in response to variability in the input a voltage and/or load conditions, thereby providing a stable output voltage. The device operates by taking a signal from the output voltage and comparing it to a reference voltage. If the output voltage increases or decreases, the signal is sent back to the device and the output voltage is adjusted accordingly, ensuring that the output voltage remains at the desired preset level.The LF27CDT-TR utilizes a current mirror circuit to obtain an accurate and stable output voltage. The current mirror circuit ensures that the output voltage remains stable by utilizing a matched pair of transistors to redistribute current between the outputs.

• Conclusion

The LF27CDT-TR is a three-terminal linear voltage regulator device suitable for use in a variety of applications, including mobile devices, motors and control systems, as well as automotive applications. The device operates by comparing the output voltage to a reference voltage in order to maintain a precise output voltage level, and utilizes a current mirror circuit to obtain an accurate and stable output voltage.

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