TPS40200GDR Integrated Circuits (ICs)

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The Texas Instruments TPS40200GDR is an Inductor Mode DC-DC Switching Controller used in voltage regulator applications. This integrated circuit features a wide input voltage range of 6.9V to 42V, making it well suited for automotive, industrial, and communications applications. The TPS40200GDR operates in an inductor-mode, synchronous rectified flyback topology, making it suitable for high step-down and step-up currents up to 2.5A. It is ideal for buck-boost converter designs, allowing for output voltage adjustment from 5V to 42V.

In inductor-mode switching converters, the TPS40200GDR is used to drive switches in the primary side and regulate the output voltage with an external feedback circuit. This controller provides a MOSFET driver with LX current limit protection, allowing for high Avalanche Energy rated MOSFETs to be used in the converter design. The high current spikes generated by the inductive output is suppressed through soft start capability, which slowly ramps up the output voltage while ensuring a smooth start-up.

The TPS40200GDR oscillator is programmable up to 3MHz via an external resistor, offering designers flexibility to design a power converter with fast transient response. It also features a wide operating temperature range of -40C to 140C and benefits from a low quiescent current shutdown feature, which is ideal for low-power applications. Additionally, the device includes Under voltage Lockout (UVLO) protection, Internal thermal shutdown, and latch-off protection from output over-voltages, allowing for improved system reliability.

The TPS40200GDR is an ideal choice for point-of-loads, high step-down converters, buck-boost converters, low-noise telecom systems, and non-isolated converters that require a wide input voltage range.

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