LW015A981

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DC-DC converters are electrical power regulators used to convert a source of direct current (DC) from one voltage level to another. The DC-DC converter LW015A981 is a wide input acceptable synchronous step down DC to DC converter that can work over a range of 8V to 60V input. It is suitable for input voltage of 12V, 24V, 36V and 48V battery and other widely used environmental allowed voltage input sources. The converter offers fast transient response, high efficiency, low noise and high power conversion.

Features

The LW015A981 converter has several features that make it ideal for many applications. These features include:

• Wide input voltage range: 8V – 60V
• Output voltage range: 0.6V to 48V
• High efficiency: Up to 95%
• High reliability: No minimum load requirement, overvoltage protection, overcurrent protection, short circuit protection, thermal shutdown protection, over temperature protection, and safe operating area protection.
• Small size: 28mm×28mm×3.5mm
• Support wide operating temperature range: -40℃ to +100℃
• Protection from high temperature and low temperature conditions.

Applications

The LW015A981 converter is ideal for a wide range of applications due to its high efficiency and wide input voltage range. Some examples of applications include:

• Telecommunication systems
• Industrial process control systems
• Battery-powered mobile devices
• Solar-powered devices
• Medical instruments and equipment
• Automotive systems
• Smart grid systems
• Robotic arm controllers
• Security systems

Working Principle

The working principle of LW015A981 converter is based on a synchronous step-down conversion scheme. The converter contains an integrated high-side MOSFET, a low-side MOSFET and a synchronous P-channel MOSFET. The integrated high-side MOSFET is enabled to switch the input power source in order to control the output voltage. A current sense resistor is used to monitor the output load current. The on-chip error amplifier compares the output voltage with the reference feedback voltage, and provides an error voltage signal to the PWM control logic. The PWM control logic modulates the integrated high-side MOSFET and also controls the steady-state output voltage via an external feedback voltage divider. The synchronous P-channel MOSFET manages the output current to the load, while the low-side MOSFET, disconnected while the high-side MOSFET is on, helps to spread the heat generated by the high-side MOSFET when it is off.

Conclusion

The LW015A981 converter is a high efficiency, low noise, and high power conversion, synchronous step down DC to DC converter, that is ideal for many applications due to its wide input voltage range and high reliability. The converter is suitable for input voltages of 8V-60V, and provides an output voltage range of 0.6V to 48V. Its small size, high efficiency, and wide operating temperature range make it ideal for a wide range of applications, including telecommunication systems, industrial process control systems, medical equipment, and smart grid systems.

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