TLV62080DSGT Integrated Circuits (ICs)

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The TLV62080DSGT is a novel voltage regulator DC-DC switching regulator integrated circuit (IC) developed by Texas Instruments, especially intended for use in electrical systems and applications requiring power conversion and management. It optimizes performance while maintaining high-efficiency over multiple load conditions. This integrated device offers 13 adjustable voltage output regulation and enables the development of power supplies with reduced parts count, smaller board space and low cost.

Overview

The TLV62080DSGT is a 7A synchronous buck regulator, which includes a current-mode control loop with adaptive on-time control. It supports a wide input voltage range starting from 7V up to 80V VDD, adjustable output voltage and incorporates overvoltage protection. Output voltage can then be adjusted up to 600mV with a minimum voltage of 0.9V. This switching regulator IC supports 4 infinitely programmable switching frequency options: from 200 kHz to 1.5 MHz and features an adjustable soft start to reduce inrush current. Additionally, this device integrates an embedded low dropout linear regulator, a power good output and a PGOOD signal output which indicates the system\'s operating status.TLV62080DSGT integrates a signal amplifier which is suitable for driving external power MOSFETS. Moreover, the feedback voltage can be set any value between 0.6V and 6V. With an internal transconductance amplifier, it can offer excellent line were regulation and fast response to dynamic output load changes.

Features

• Wide operating input voltage range from 7V to 80V
• High efficiency of up to 96.5%
• Easy to configure
• Low operating temperature (-40°C to +150°C)
• Low-dropout linear regulator
• PGOOD signal output
• Programmable switching frequency up to 1.5 MHz
• Built-in overvoltage protection
• Built-in thermal shutdown, undervoltage protection, and cycle-by-cycle current limiting
• Balance-load operation and low EMI/EMC operation

Applications

The TLV62080DSGT switching regulator IC is specifically designed for use in a variety of power conversion and management solutions. It is suitable for applications such as SAN/NAS and other data centers, consumer and industrial products, industrial automation and safety, automotive, IoT applications and many others.Examples of the application areas include but are not limited to server and storage systems, battery chargers, point-of-load power supplies, LED lighting systems, and medical devices. This device is particularly suited for high-temperature, high-current and hot-swap operations.

Working Principle

The operating principle of this switching regulator is quite simple and straightforward. It makes use of a high-frequency switch, typically a power MOSFET, and a step-down transformer as its main components. The switching action of the MOSFET is controlled by the controller IC, which can best be represented as an ON/OFF switch.When the MOSFET is in ON state, the energy is delivered from the input voltage source to the transformer primary winding. During this state, the output voltage is regulated via the switching cycle of the MOSFET, the duty cycle, and the input voltage, which dictates the magnitude of the output current. The transformer secondary winding is connected to the output and produces the desired output voltage from the transformer’s voltage conversion ratio.When the switch is in OFF state, the output voltage delivers energy back to the input source, which is commonly known as the “flyback” action. This action is necessary to ensure the output voltage and power are lower than the input voltage and power. The output voltage is regulated by the feedback loop and is adjusted to the desired value using the TLV62080DSGT voltage regulator IC.

Conclusion

The TLV62080DSGT is a highly efficient and cost-effective voltage regulator DC-DC switching regulator IC designed by Texas Instruments. It is intended for applications requiring power conversion and management, such as data centers, batteries, LED lighting, and medical devices. This device has very low operating temperature, it is easy to configure and it supports up to 7A output current. Offering 13 adjustable output voltages and 4 programmable switching frequency options it is well-suited for high-temperature, high-current, and hot-swap operations. The operating principle relies on a high-frequency switch and a step-down transformer.

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