LTC3203BEDD-1#PBF

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LTC3203BEDD-1#PBF Voltgae Regulators DC DC Switching Regulators

The LTC3203BEDD-1#PBF is a high performance, compact DC/DC switching voltage regulator suitable for a wide range of applications. It features a buck-boost converter topology with advanced current mode control and adjustable switching frequency. Its 3.3V to 32V input voltage range allows for a wide variety of supply rails, including low voltage buck converter applications. The dual-mode synchronous rectifier feature provides improved efficiency when enabled. It supports a maximum output current of up to 2A and a minimum output voltage of 2.4V.

Application Field

The LTC3203BEDD-1#PBF is suitable for a wide range of DC/DC power supply applications, such as 3.3V, 5V, 12V, or 24V output voltage converters. It can be used as both a step down (buck converter) and a step up (boost converter) converter, making it suitable for low voltage, high current applications such as powering low-power digital circuitry like microcontrollers, FPGAs and ASICs. The LTC3203BEDD-1#PBF is also suitable for powering high-power current sources like solenoids, relays and motors, as well as powering multiple voltage rails.

Working Principle

The LTC3203BEDD-1#PBF is a high performance and low power buck-boost voltage regulator that works by converting the input voltage to a stable output voltage. The device features a dual-mode synchronous rectifier that enables improved efficiency when enabled. It also has an adjustable frequency, adjustable switching current limits and adjustable output voltage. The device can utilize an external resistor divider to quite easily set the output voltage range to any value from 2.4V to 15V.

The device has a wide range of features for controlling the voltage regulator and optimizing its performance. For example, it has an adjustable peak switch current limit, an adjustable switching frequency, an adjustable soft-start time and a power good indicator. Furthermore, the device has a built-in cycle-by-cycle current limit, thermal shutdown and input undervoltage lockout. The output of the device can be controlled through a number of different methods, including a voltage mode interface as well as a current mode control.

Furthermore, the device has an Integrated Power-On-Reset (IPR) with an adjustable delay settings, as well as programmable switching current and switching frequency limit using an external resistor. The POK signal is also adjustable, which can be used for an adaptive power system. In addition, it has a power-saving mode, which reduces output power consumption without decreasing the output voltage range.

In summary, the LTC3203BEDD-1#PBF is a versatile and feature rich voltage regulator suitable for a wide range of DC/DC power supply applications. It features a buck-boost converter topology with advanced current mode control and adjustable switching frequency. Its wide input voltage range enables powering a range of embedded applications, and its adjustable output voltage range as well as programmable peak switch current and switching frequency makes it a highly suitable device for low voltage and high current applications.

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