TPS60400QDBVRQ1

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TPS60400QDBVRQ1 Application Field and Working Principle

The TPS60400QDBVRQ1 is a fully integrated DC-DC synchronous buck regulator from Texas Instruments. It is part of their Power Management IC (PMIC) family and is categorized as a voltage regulator for DC-DC switching regulators. The TPS60400QDBVRQ1 is designed for an input voltage of 2.7V to 5.5V and provides a regulated output voltage of 1.2V to 4.375V.

Application Field

The TPS60400QDBVRQ1 is well-suited for a variety of applications, including embedded systems, automotive, industrial, and mobile applications. It is well-suited for automated systems as it has built-in protection features, such as overcurrent protection, output undervoltage protection, and thermal protection. It also includes integrated reverse voltage protection and a low-dropout (LDO) linear regulator to greatly reduce power losses.

The TPS60400QDBVRQ1\'s integrated features, such as low quiescent current, low output ripple and noise, and low output voltage variation, make it ideal for a wide range of applications including embedded systems, automotive electronics, factories, networks, routers and servers, cell phones, and portable medical devices.

Working Principle

The TPS60400QDBVRQ1 is based on the synchronous buck regulator topology, which allows the device to switch at a 100% duty cycle and attain high efficiencies at no or low load. The device is designed to include a NMOS and PMOS power stage operated in a fixed frequency buck synchronous mode, initially configured to operate in continuous conduction mode (CCM) operation. The integrated 16-bit phase locked loop (PLL) also allows for a spread spectrum frequency modulation mode.

The device includes programmable current limit and output voltage settings, which can be set using an external resistor divider. The device also includes an integrated voltage reference, oscillator, clock divider, synchronization logic, error amplifier, and voltage feedback circuitry.

The TPS60400QDBVRQ1 supports full overload protection, power-good indicator, a voltage sequencing feature, and a power-down function. The device also offers integrated overcurrent protection, output undervoltage protection, short-circuit protection, reverse-voltage protection, and thermal protection.

Conclusion

The TPS60400QDBVRQ1 from Texas Instruments offers an innovative solution for a wide range of applications and is an ideal solution for embedded systems, automotive, industrial, and mobile applications. With an input voltage of 2.7V to 5.5V, the device provides a regulated output voltage of 1.2V to 4.375V. Furthermore, the device includes several integrated features, such as overcurrent protection, output undervoltage protection, and thermal protection, to offer reliable power supply with minimal power losses.

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