SUS1R5123R3BP

Current - Output (Max):	400mA
Supplier Device Package:	--
Size / Dimension:	0.84" L x 0.48" W x 0.26" H (21.4mm x 12.2mm x 6.5mm)
Package / Case:	5-SMD Module, Gull Wing
Mounting Type:	Surface Mount
Efficiency:	72%
Operating Temperature:	-40°C ~ 85°C (With Derating)
Features:	--
Applications:	ITE (Commercial)
Voltage - Isolation:	500V
Power (Watts):	1.3W
Series:	SUS
Voltage - Output 4:	--
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	3.3V
Voltage - Input (Max):	18V
Voltage - Input (Min):	9V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active

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DC-DC converters are electronic components that provide the necessary electric power and interface signals. Their core components are transistors, diodes, and capacitors. The most common DC-DC converter is the SUS1R5123R3BP. This converter is designed to be used as a DC-DC step-down regulator for high power applications.The SUS1R5123R3BP is a high-efficiency DC-DC converter composed of high-voltage input, low-voltage output, and multiple circuits for the wave shaping and control. It offers high efficiency, wide input voltage range, low quiescent current, and excellent output noise suppression. It is also capable of sustaining high power levels with excellent protection against overvoltage, current, and thermal events.Working PrincipleThe SUS1R5123R3BP works on the process of pulse width modulation (PWM). This process uses a series of short pulses of voltage and current applied to the transformer to create a pulsating output of sine-waves. The pulses of voltage and current are then converted to the required output voltage rating by the transformer. The output voltage is regulated by controlling the width of the pulses. The duration of these width pulses varies depending on the requirements of the output voltage level. The output voltage can then be monitored with the help of a voltage regulator or a monitoring software.The use of PWM also helps in conserving energy. It reduces the amount of time the circuit is operating in a higher wattage range, thus saving energy in the process.FeaturesThe SUS1R5123R3BP offers many features which make it ideal for high power applications. It has an input range of 3.6V to 24V and an adjustable output voltage of 0.5V to 12V. The output voltage can be adjusted via an onboard voltage control pin. It is capable of providing a maximum power rating of 123W and delivers an operating efficiency of up to 96%. There is also an onboard thermal protection and short-circuit protection feature that helps protect the device from overvoltage, current, and thermal events.The device also boasts a high switching frequency, with the ability to operate from 500 kHz to 2 MHz. This enables higher power output and improved transient response. The SUS1R5123R3BP also has a low ripple noise of 30mV (peak-to-peak), which is ideal for noise-sensitive applications.Application FieldThe SUS1R5123R3BP is designed to be used as a DC-DC step-down regulator for high power applications. It can be used in power supplies employed in various electronic devices such as computers, laptops, televisions, monitors, communications equipment, automotive systems, and industrial automation systems.It is also suitable for applications requiring high standby power such as security systems and battery-powered systems. Its wide input voltage range and high efficiency make it ideal for systems with high power requirements and multiple voltage rails.ConclusionThe SUS1R5123R3BP is a high-efficiency DC-DC step-down converter designed for high power applications. It uses pulse width modulation for converting the input voltage to the output voltage, thereby providing a high efficiency and low ripple noise output. It has a wide input voltage range and an adjustable output voltage, making it an ideal choice for many applications. It also features protection against overvoltage, current, and thermal events, as well as a high switching frequency for improved transient response.

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