LTC3882IUJ-1#PBF

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LTC3882IUJ-1#PBF is a DC/DC switching controller from Texas Instruments that offers a powerful, high performance and cost-efficient solution for applications requiring precise supply control. This parts are suitable for supplying equipment, alarm systems and power supplies, as well as general low power needs. The key features it offers include: ultra low voltage drop, wide input voltage range, high output current capacity, single-phase synchronous rectification, adjustable output voltage and current limit.

Application Field

The LTC3882IUJ-1#PBF is a DC/DC synchronous buck switching controller designed to deliver precise current, voltage and current limit to power supplies and other applications. It combines a highly efficient synchronous rectifier topology with adjustable operating frequency, precise current limits and an optional internal power control circuit. This parts are suitable for supplying equipment, alarm systems and other low power needs.

The LTC3882IUJ-1#PBF is capable of providing adjustable output voltages from 3.3V to 12V, intermittent output currents of up to 2A, and continuous output currents up to 1A. They are especially well-suited for applications needing high-efficiency, no minimum load current, and low power dissipation. Examples include personal computer power supplies, battery chargers, and other power management systems.

Working Principle

The core of the LTC3882IUJ-1#PBF is a low-dropout, low-voltage regulator. It senses the output voltage at its on-chip feedback resistor and adjusts the current in the synchronous switch bridge according to the output voltage. This light-load power control technology optimizes switching efficiency without the need for additional components.

The LTC3882IUJ-1#PBF also features a programmable switching frequency. This allows the device to reduce switching losses and EMI noise, enabling it to work better in noise sensitive environments. The output voltage at the feedback resistor is continuously monitored and compared to the voltage set by the external voltage divider. The output voltage is also monitored for any over-current protection. Additionally, the LTC3882IUJ-1#PBF has built-in soft start and over-temperature shutdown protection.

In summary, the LTC3882IUJ-1#PBF is a powerful and cost-efficient DC/DC switching controller suitable for a variety of applications. Its low dropout voltage, wide input voltage range, high output current capacity, single-phase synchronous rectification, adjustable output voltage and current limit make it an ideal solution for powering equipment, alarms, and power supplies.

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