SC198MLTRT Integrated Circuits (ICs)

Voltage - Input (Max):	5.5V
Supplier Device Package:	20-MLPQ (4x4)
Package / Case:	20-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	1.1MHz
Current - Output:	600mA
Voltage - Output (Max):	1.88V
Voltage - Output (Min/Fixed):	1V
Series:	--
Voltage - Input (Min):	2.7V
Number of Outputs:	2
Output Type:	Programmable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to SC198MLTRT

SC198MLTRT voltage regulators are monolithic switching DC to DC regulators for use in both isolated or non-isolated DC-DC converters applications. They are an integrated single-chip regulator that features an accurate and wide-range current-mode PWM control. These regulators provide an accurate operating voltage that can be adjusted to regulate output current or dynamically adjust for variations in VIN, as well as adjustable frequency-compensation to optimize the design process. SC198MLTRT voltage regulators also support a wide input voltage range from 3.3V to 40V and maximum output current of 500mA. The output voltage can be programmed to any voltage within the range of 0.8V to 24V.

Features of SC198MLTRT

SC198MLTRT voltage regulators come with a variety of features that make it ideal for regulating power supplies in a wide range of applications. First, the regulators boast an exceptionally low quiescent current of 50μA. This makes them an ideal choice for applications where low power consumption is key. The regulators also have a variety of options for trimming the output voltage to precise accuracy. Options include external resistors, external voltage reference, and PMBus / I2C.The regulators also provide a wide range of protection features, such as overcurrent protection, thermal shutdown, undervoltage lockout and reverse current protection. Additionally, the devices are housed in a thermally enhanced surface-mount package, allowing for easy and efficient mounting. The regulators also provide a low-noise design, with a maximum low frequency EMI of 80 dBm, ensuring efficient and clean delivery of power to data-sensitive applications.Finally, the regulators are tested to meet the most stringent quality requirements, and the devices are qualified to the widely recognized AEC-Q100 standard. This ensures reliability and performance in a wide range of automotive and industrial applications.

Applications of SC198MLTRT

SC198MLTRT voltage regulators are suitable for use in a wide range of low-noise, low-power applications where precise and accurate power delivery is critical. The regulators provide reliable and efficient performance in a variety of industrial and automotive applications, including industrial control systems, point-of-load (POL) power supplies, off-line servers, motor control systems, and vehicle module power systems.The regulators are also ideal for handheld devices, such as smartphones and tablets, where precise and efficient delivery of power is essential. They can also be used in embedded systems, such as gaming consoles, where clean and quiet power delivery is required.

Working Principle of SC198MLTRT

The SC198MLTRT is a monolithic voltage regulator that uses a current-mode pulse width modulation (PWM) topology. The regulator operates in two main modes: pulse width modulation (PWM) or pulse frequency modulation (PFM). When in PWM mode, the regulator works by modulating the width of the output pulses to control the amount of power delivered to the load. In PFM mode, the regulator works by modulating the frequency of the output pulses to control the amount of power delivered to the load.The regulator also uses an on-chip voltage reference and an internal transconductance amplifier to ensure precise and accurate power delivery. The regulator’s output voltage and current can be adjusted to precise levels through the use of external resistors and/or external voltage references. Furthermore, the regulator can be adjusted by the user through PMBus and I2C compatible commands. This enables the regulator to react to changing load requirements, or even allow for dynamic voltage level adjustments, for precise and efficient power delivery.

Conclusion

SC198MLTRT voltage regulators are ideal for a variety of low-noise, low-power applications where precise and efficient power delivery is essential. The regulators come with a variety of features, such as adjustable output voltage trimming options, protection features, and wide input voltage ranges, and they are designed to provide reliable performance in a range of industrial and automotive applications. The regulators also use current-mode PWM topology to maximize efficiency and support user-adjustable PMBus and I2C commands for precise and adjustable power delivery.

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