TCR3UG27A,LF

Voltage Dropout (Max):	0.327V @ 300mA
Supplier Device Package:	4-WCSP-F (0.65x0.65)
Package / Case:	4-XFBGA, WLCSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TJ)
Protection Features:	Inrush Current, Over Current, Thermal Shutdown
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Quiescent (Iq):	680nA
Current - Output:	300mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.7V
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 to TCR3UG27A,LF

TCR3UG27A,LF is a voltage regulator of PMIC (Power Management IC) category, and it belongs to the Linear type, which is basically for commercial use, as it ensures low outage voltage drop. This voltage regulator also has a low quiescent current, making it suitable for battery-operated systems.

Features of TCR3UG27A,LF

The TCR3UG27A,LF voltage regulator has the following features:

• It is housed in an 8-pin small surface mount package.
• It has a low quiescent current of 50 µA.
• It has a minimum supply voltage of 1.3 volts.
• It has a fixed output voltage of 3.3 V depending on the device type.
• It has an enabled logic input, which helps minimize power draw when the regulator is not in use.
• It has high output noise performance.
• It has current limit, thermal shutdown and short-circuit protection.
• It has a high PSRR and low output voltage noise.
• Temperature range of -40°C to +125°C.

Application

The TCR3UG27A,LF voltage regulator is suitable for various applications including notebook PCs, graphical cards, and mobile devices. In addition, it is ideal for various analog and digital circuit designs, such as standard logic gates, signal processing, signal conditioning, data acquisition, and power supply linear applications. In particular, it is an effective power solution for low power applications where low power draws and a low quiescent current are all important requirements.

Working Principle

The TCR3UG27A,LF voltage regulator works in two stages. The first stage is the voltage regulation which consists of a voltage reference and an error amplifier. This error amplifier controls the output voltage of the voltage regulator by comparing the voltage reference to the output voltage. The second stage is the output stage which consists of a power MOSFET, a current limiter and an over-temperature limiter. The power MOSFET is used to control the output current and limit the output voltage to the programmed value. The current limiter limits the maximum voltage and guards against short circuits while the over-temperature limiter provides thermal protection from excessive temperatures. The output stage takes the output from the error amplifier and controls the current in the power MOSFET to ensure that the output voltage remains stable and within its programmed values.

Conclusion

TCR3UG27A,LF is a voltage regulator of PMIC (Power Management IC) category and a member of the Linear voltage regulator type. It is well suited for low-power applications due to its low voltage drop and low quiescent current. It also has various features including a small 8-pin package, wide temperature range, current limit, and thermal shutdown functionality. In addition, its two-stage regulation operation helps ensure that the output voltage remains stable and within its programmed value.

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