IFX90121ELV50XUMA1 Integrated Circuits (ICs)

Voltage - Input (Max):	45V
Supplier Device Package:	PG-SSOP-14
Package / Case:	14-LSSOP (0.154", 3.90mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	2.2MHz
Current - Output:	500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Series:	--
Voltage - Input (Min):	4.75V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Last Time Buy
Packaging:	Tape & Reel (TR)

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Introduction to IFX90121ELV50XUMA1

The IFX90121ELV50XUMA1 is an integrated DC to DC switching regulator by Infineon. This product was specifically designed with maximum flexibility and application specific features in mind and is a perfect fit for space constrained, general-purpose industry applications. The IFX90121ELV50XUMA1 is suitable for wide input voltage range applications and is capable of providing adjustable output voltages from 0.8V up to 5.5V. This product also provides a wide selection of power-saving and power-saving modes to reduce energy consumption.

Application Field of IFX90121ELV50XUMA1

The IFX90121ELV50XUMA1 is a versatile and reliable solution for dc-to-dc switching applications. It is able to provide output voltages in the range of 0.8 to 5.5 V and a high output current up to 2A. This is especially suitable for industry applications that require adjustable or variable output voltages, such as industrial control and automation, instrumentation, medical, communication and consumer electronics. Additionally, it offers output current limit protection and is built with high level of efficiency and long lifetime operation. In addition, the IFX90121ELV50XUMA1 is highly reliable and performs efficiently while protecting the system from possible interferences such as transients, inrush current and over-voltage condition. It is also equipped with EMI filters that significantly reduce unwanted electromagnetic interferences (EMI) to ensure reliable operation and bulletproof application performance.

Working Principle of IFX90121ELV50XUMA1

The IFX90121ELV50XUMA1 is an efficient, flexible and reliable switching regulator. It is designed to generate required voltage for a wide variety of applications with minimal power dissipation and fast response. At its core, the IFX90121ELV50XUMA1 consists of two power components; a low-side MOSFET and a synchronous rectifier. The two power components allow for better power control and efficiency. The MOSFET is the main power switch that controls the voltage at the output while the synchronous rectifier acts as a diode, regulating the voltage and current on the output. The IFX90121ELV50XUMA1 features an integrated linear regulator (a buck-boost regulator) with a high frequency switching mechanism. It also contains an integrated voltage reference, logic control and protection features. The logic control is responsible for controlling the power components and changing the operating mode as needed. The protection features protect the device in case of over-voltage, over-temperature and fault conditions.The IFX90121ELV50XUMA1 operates in two primary modes; a burst mode and a continuous conduction mode. In the burst mode, the device will go into the low power mode for minimal power consumption until a certain voltage level is reached. In the continuous conduction mode, the device will remain on and provide the desired voltage. In addition, the IFX90121ELV50XUMA1 features a thermal foldback function, which provides extra protection against excessive heat by reducing output current as temperature increases. It also has a wide selection of current limit options, allowing it to efficiently power up a variety of loads. Finally, the IFX90121ELV50XUMA1 is compatible with 400uH and 1000uH inductors for increased efficiency and reduced size.

Conclusion

The IFX90121ELV50XUMA1 DC to DC switching regulator by Infineon is an efficient, versatile and reliable device for various industrial applications. It is designed to provide adjustable and variable output voltages from 0.8V up to 5.5V with a high output current of up to 2A. Furthermore, it provides power saving and protection functions such as current limit, thermal foldback and inrush current protection. Additionally, the device is very easy to integrate and operates on low noise with high level of efficiency. With these features and greater flexibility, the IFX90121ELV50XUMA1 is an ideal solution for space constrained, general-purpose industrial and consumer applications.

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