LT8614MPUDC#PBF

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Overview of the LT8614MPUDC#PBF

The LT8614MPUDC#PBF is a high-efficiency voltage regulator switch from the PMIC - Voltage Regulators - DC DC Switching Regulators product family. It is mainly used in automotive and industrial applications such as LED lighting, battery-powered electric or hybrid electric vehicles, motor/solenoid control, door locks, and power supplies. It is also suitable for telecommunication and consumer applications such as battery-powered portable consumer devices, including mobile phones and media players.

Main Features of the LT8614MPUDC#PBF

• High-efficiency and low thermal resistance
• Internal soft-start and pre-biased options
• Low operating current of 20 mA
• Internal synchronous rectifying FETs
• Internal 1.25V reference voltage
• 6V to 42V input voltage range
• Output current range from 0.3A to 3A
• Ultra-small 3mm x 3mm 10-lead DFN package

Application of the LT8614MPUDC#PBF

The LT8614MPUDC#PBF is ideal for a variety of applications requiring high efficiency and low thermal resistance. It can be used in automotive and industrial applications such as LED lighting, battery-powered electric or hybrid electric vehicles, motor/solenoid control, door locks, and power supplies. It is also suitable for telecommunication and consumer applications such as battery-powered portable consumer devices including mobile phones, media players, and many other devices.

The device offers excellent efficiency at high current levels as well as low dropout voltage. This is due to its internal synchronous rectifying FETs, internal 1.25V reference voltage, and its ultra-small three-by-three-millimeter 10-lead DFN package. It features a low operating current of 20 mA and has a 6V to 42V input voltage range, allowing for a wide range of applications.

Working Principle of the LT8614MPUDC#PBF

The LT8614MPUDC#PBF is a DC-DC converter switch based on a voltage mode switching regulator topology. The device uses an internal MOSFET to switch an output voltage with an input voltage of up to 42V across a wide range of temperatures and load conditions. The device employs a constant on-time operation type that ensures a constant switching frequency and an adjustable current limit.

An internal 0.30V current sense amplifier monitors the current at the drain pin of the synchronous rectifying FET, providing control of the current limit and providing feedback to regulate the output voltage. An internal voltage reference provides a 0.1% accurate output voltage. The device also features an optional pre-biased output and soft-start features, and it is protected against overvoltage, undervoltage, and temperature.

In summary, the LT8614MPUDC#PBF is an efficient and high-quality DC-DC converter switch from the PMIC - Voltage Regulators - DC DC Switching Regulators product family, and is ideal for automotive, industrial, telecommunications, and consumer applications.

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