SC417MLTRC

Series:	EcoSpeed®, SmartDrive™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Topology:	Step-Down (Buck) (1), Linear (LDO) (1)
Function:	Any Function
Number of Outputs:	2
Frequency - Switching:	1MHz
Voltage/Current - Output 1:	Adj, 10A
Voltage/Current - Output 2:	0.75 V ~ 5.25 V, 200mA
Voltage/Current - Output 3:	--
w/LED Driver:	No
w/Supervisor:	No
w/Sequencer:	No
Voltage - Supply:	3 V ~ 28 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-VFQFN Exposed Pad
Supplier Device Package:	32-MLPQ (5x5)

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Introduction

SC417MLTRC is a Low-Cost Precision voltage regulator with a switching mode and a linear regulator combined. It provides excellent accuracy, fast transient response and wide output range for many application areas. This type of regulator is well suited for applications where both current regulation and voltage regulation are needed in the same circuit. It is an ideal choice for battery powered applications or where low-cost is the primary requirement.

Use in Various Applications

The SC417MLTRC can be used in a wide range of applications, including automotive, battery-powered equipment, control systems, personal electronics, medical devices, petrochemical industry, and many other electronic devices. It is capable of delivering high precision performance over a wide range of voltages, ranging from 0.5V to 6V. This makes it suitable for applications requiring current and voltage regulation in a single device. With its low quiescent current and low dropout voltage, it is ideal for applications that require low power consumption.

High Reliability in a Compact Package

The SC417MLTRC utilizes a unique combination of linear and switching regulating elements in a compact package. The combination provides a balanced approach for optimal performance and high reliability. Its wide input range and adjustable output voltage makes it ideal for applications that require higher accuracy and faster transient response. It is capable of maintaining an accuracy of +/-1% with a maximum steady state output current of 1A.

Protection Features

The SC417MLTRC offers a variety of protection features to guard against unexpected over-voltage, short-circuits or current overloads. The unit also features thermal shutdown protection to prevent the unit from overheating and damaging the components. It is also capable of providing Reverse Polarity protection, ensuring that there is no possibility of reverse current flow. This feature makes the unit ideal for automotive applications where an accidental connection of the wrong polarity is a common occurrence.

Modular Solutions

The SC417MLTRC is also offered in a modular solution in a power-over-ethernet format. This form factor is ideal for applications in automotive, avionics or military systems where end-users may need high-power or high-precision voltage regulation. The power-over-ethernet provides efficient high-power delivery in a compact form factor, with a low-cost solution.

Working Principle

The SC417MLTRC voltage regulator is based on a combination of the linear and switching regulating elements. The linear element is designed to provide low-noise, low-distortion and high-accuracy. The linear element is then combined with the switching element which is designed to provide fast transient response and excellent current regulation.The linear element of the regulator is capable of providing a constant feedback voltage and monitors the output voltage. This enables the regulator to maintain a constant output voltage even if the external voltage varies. The switching element of the regulator works in conjunction with the linear element.The switching element is responsible for controlling the output current and providing fast transient responses. This ensures that the output voltage is not affected by sudden changes in the external voltage. When the external voltage falls below the reference voltage, the switching element reduces the output current, keeping the output voltage constant. When the external voltage rises above the reference voltage, the switching element increases the output current. This helps maintain the output voltage constant, even when the external voltage varies. The combination of the two elements provides a precise and accurate output voltage and fast transient response.

Conclusion

The SC417MLTRC is a cost-effective and reliable voltage regulator which combines the linear and switching regulating elements to provide high precision performance over a wide range of voltages. Its protection features ensure that the unit is safe to use in automotive applications, where an accidental connection of the wrong polarity is a common occurrence. The unit is also offered in a modular solution in a power-over-ethernet format, which is ideal for applications in automotive, avionics or military systems. The combination of excellent accuracy, fast transient response and protection features makes this type of regulator suitable for a wide range of applications.

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