IRU1050CDTR

Current - Output:	5A
Base Part Number:	IRU1050CD
Supplier Device Package:	D-Pak
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 150°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	70dB (120Hz)
Current - Quiescent (Iq):	10mA
Series:	--
Voltage Dropout (Max):	1.3V @ 5A
Voltage - Output (Max):	3.3V
Voltage - Output (Min/Fixed):	2.5V
Voltage - Input (Max):	7V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to IRU1050CDTR

The IRU1050CDTR is a highly efficient linear voltage regulator that is typically used for a number of applications. It is a low dropout (LDO) voltage regulator that can accept an input voltage of up to 20V and provides a highly stable output voltage at a few millivolts of variation. The IRU1050CDTR is an easy-to-configure, three-terminal regulator that provides a solution for basic power management applications without the need for external components.

Application Field

The IRU1050CDTR is a common regulator that is suited to a variety of applications. This regulator can be used to provide output voltages of 3.3V, 5V, 12V, and adjustable outputs. It is used in applications such as notebook computers, mobile phones, PDAs, portable media players, digital cameras, DVD players, and other portable electronic devices due to its low power consumption, low noise operation, and easy configuration. The IRU1050CDTR is also well-suited for automotive, power supply designs, and other systems that require a stable and reliable supply of power.

Working Principle

The IRU1050CDTR uses an internal PNP bipolar transistor to regulate the output voltage. When an input voltage greater than its configured output voltage is applied, the PNP transistor is turned on, thereby allowing current to flow through the regulator. This current is used to stabilize the output voltage so that it remains constant even under varying input voltage conditions. The IRU1050CDTR also uses an internal compensation circuit to maintain stability and accuracy. The internal compensation loop is especially important with applications that require high speed dynamic load current changes.

Design Considerations

When designing with the IRU1050CDTR, several considerations must be taken into account. It is recommended that the input voltage be well filtered in order to minimize the possibility of power fluctuations to the output. The wide input range and overcurrent protection feature of the regulator makes it especially useful for exterior systems such as those operated outdoors or in hazardous environments. The overcurrent protection feature prevents possible damage due to overloads. Additionally, there are several design considerations such as ripple rejection, temperature coefficients, and transient response that must be evaluated when designing with the IRU1050CDTR.

Conclusion

The IRU1050CDTR is a highly efficient linear voltage regulator that is suitable for a number of applications. It has a wide input range and overcurrent protection feature which make it well-suited for exterior systems such as those operated outdoors or in hazardous environments. Additionally, the low power of the regulator combined with its easy configuration, low noise operation, and highly stable output voltage make it a great choice for mobile phones, PDAs, portable media players and other small electronic devices. Lastly, the internal compensation loop ensures stability and accuracy throughout the entire voltage range, allowing for reliable and consistent performance.

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