LTC3406AES5#TRMPBF

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The LTC3406AES5#TRMPBF is a synchronous step-down DC/DC converter with a 4V to 36V input voltage range and an adjustable output voltage range of 0.6V to 5.5V. It has a peak efficiency of up to 95%, a DC input current range of up to 1A, and a low-noise operation. The device features a tiny 10-Lead 3mm x 3mm DFN package and delivers up to 1A output current. It is suitable for a variety of applications such as industrial systems, lighting and portable electronics.

The LTC3406AES5#TRMPBF is an ideal power supply solution for applications requiring high output current and high efficiency, such as LED lighting, Li-Ion battery chargers, voltage monitors and other applications where high efficiency and cost-effectiveness are important. It offers a wide input voltage range, programmable output voltage and overvoltage lockout. It also offers output undervoltage protection, over-temperature protection and integrated soft-start.

The LTC3406AES5#TRMPBF operates in a synchronous buck topology, where the internal P-channel and N-channel MOSFETs switch synchronously at a high frequency to reduce power dissipation in the semiconductors and produce a regulated output voltage. The input voltage is converted to a regulated output voltage via a pulse-width modulator (PWM) operating in high-frequency quasi-resonant mode. The PWM switching frequency is programmed by an external resistor and can be adjusted by the voltage feedback. The output voltage can be set to any value between 0.6V and 5.5V by a single resistor.

The output current of the LTC3406AES5#TRMPBF can be controlled via an external current-sense resistor, which monitors the current going through the synchronous MOSFETs and will reduce the peak switch current when it becomes too high, improving efficiency. The part also provides short-circuit protection, overcurrent protection, output soft-start and overvoltage protection.

The LTC3406AES5#TRMPBF is designed to be very efficient and has a peak efficiency of up to 95%. The device operates at a switching frequency of up to 1MHz, which not only helps to reduce the size of the external components but also reduces output ripple.

The LTC3406AES5#TRMPBF is ideal for applications that require low-noise operation, such as LED lighting, Li-Ion battery chargers, voltage monitors and other industrial applications. It also provides protection against output short circuit and overvoltage, making it a safe power supply solution. The device is available in a tiny 10-Lead 3mm x 3mm DFN package and is rated for operation from -40°C to 85°C.

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