TL5002CDR Integrated Circuits (ICs)

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The TL5002CDR is an advanced DC-DC switching controller used in applications including on-board and notebook regulator supplies, portable products, automotive systems, telecom systems, and industrial supplies. It offers a wide range of features to simplify design, reduce component count, and improve system performance. The primary purpose of the TL5002CDR is to control the power delivered to a load, such as a microprocessor, by rapidly switching a high-power transistor on and off. The TL5002CDR is capable of operating in buck, boost, totem-pole, inverting, and flyback applications, as well as supporting a symmetric power architecture.

TL5002CDR Principle of Operation

The TL5002CDR consists of an array of analog and digital circuits that use a voltage-mode control scheme to independently regulate the output voltage of each channel. The voltage loop is a low-power circuit consisting of a summing amplifier, an error amplifier, and a voltage reference. This movement initiates the on/off switching of the power transistor thus controlling the output voltage. The TL5002CDR also features a patented skip cycle function which reduces the minimum output current, allowing the device to respond quickly and accurately to changing system load conditions.

TL5002CDR Application Fields

The TL5002CDR can be used in a variety of applications including on-board and notebook regulator supplies, portable products, automotive systems, telecom systems, and industrial supplies. The device is suitable for powering microprocessor cores, FPGA I/O, memory and logic circuitry. It is highly efficient, featuring adjustable switching frequencies up to 2MHz, as well as a skip cycle feature that enables the device to respond quickly and accurately to changing system load conditions. For example, it can be used to power multiple channels of a microprocessor in a Notebook PC, where precise voltage control and low power consumption are desirable.

In Automotive applications, the TL5002CDR can be used to regulate supply voltage for ECUs, cabin entertainment systems, and accessories. The device offers high efficiency, low noise, and advanced protection features such as an adjustable input undervoltage lockout (UVLO) and an internal thermal shutdown (TSD) feature.

In Telecom and Industrial applications, the device can be employed to regulate voltage for base stations and embedded systems. Its wide input voltage range, low quiescent current, adjustable switching frequency, and advanced features such as the skip cycle are advantageous in those applications.

In summary, the TL5002CDR is a highly integrated low-power DC-DC switching controller optimized for use in a wide variety of applications. It features an adjustable UVLO, adjustable switching frequency, skip cycle and many other safety protection features. The TL5002CDR offers excellent efficiency, low noise, and low operating power consumption in a compact package.

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