LTM4639EY#PBF

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DC-DC converters are used to regulate power from one source to another, such as from vehicle batteries to low voltage devices. The LTM4639EY#PBF is an ultra-small nanowatt-power switch-mode dc-dc converter optimized for low power applications. This device has wide application fields as it provides a power conversion solution between battery, DC wall adapter, or USB connectors. It also has an extensive range of load current, up to 200mA with adjustable output voltage.

Features of LTM4639EY#PBF

This device features high conversion efficiency up to 95%, low output ripple and noise, transient response time as low as 2μs per step, and wide operating temperature range from -40°C to 125°C. Its unique feature is that it supports input voltage of up to 30V, while other DC-DC converters come with a maximum input voltage of 24V. This device also has an adjustable switching frequency from 100 kHz to 1.5 MHz.

Application fields of LTM4639EY#PBF

The broad range of features makes the LTM4639EY#PBF suitable for a huge variety of applications, such as automotive, industrial, and consumer electronics. It can be used for motor control in automotive applications, as well as for powering up routers, access points, peripheral devices, smart home products, IoT applications, wearable devices, and many more.

Working Principle of LTM4639EY#PBF

The working principle of the LTM4639EY#PBF is based on switch-mode technology. The device takes the pulse width modulated (PWM) input from the power source, and then using a power MOSFET, it switches between two different conduction states to convert power. The output voltage is then regulated by varying the width of the switching pulses of the MOSFET. This helps to reduce the power consumption and also maintain the output voltage at specified levels without fluctuations.

It also has an integrated circuit which uses voltage regulation feedback from the output voltage and compared that with an internal reference voltage to set the output voltage and to monitor that the output does not fall out of specified levels. Furthermore, the LTM4639EY#PBF integrates low on-resistance power MOSFETs to provide high efficiency, even at low input voltages.

Conclusion

The LTM4639EY#PBF is a versatile ultra-small switch-mode DC-DC converter, optimized for low power applications. Its features makes it suitable for a wide range of applications, from automotive to industrial to consumer electronics. The device works on switch-mode technology and features high efficiency, low output ripple and noise, fast transient response time, wide operating temperature range, adjustable switching frequency, and more. The LTM4639EY#PBF is an excellent choice for low power projects looking for an efficient and reliable power conversion solution.

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