TPS53128PWR Integrated Circuits (ICs)

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TPS53128PWR is a Power Management Integrated Circuit (PMIC) specifically designed for DC-DC switching power conversion. Specifically, it is part of the Voltage Regulators and DC DC Switching Controllers family of PMICs. In this article, we explore its application fields and working principle.

Application Fields of TPS53128PWR

The TPS53128PWR is suitable for a wide range of applications, such as battery management systems, operating system power supplies, base station DC-DC power management, computer motherboard-bus power management, telecom power management systems, etc. It can be used with a wide range of switchable output power supplies, such as cell phone chargers and AC adaptors, USB Type-C, etc. It also features adjustable / fixed output voltage of 0.6V-1.985V and output current of up to 6A.

Typical Operating Principles

The TPS53128PWR regulates the output voltage of a DC-DC switchable power supply by variably switching the output of the power supply between high or low by way of on-board control circuitry. It utilizes a voltage-mode control and maintains the output voltage of the power supply to within ±1%. Such performance is made possible through its accurate compensation characteristics, allowing it to quickly respond and adjust the output voltage according to the dynamic change of output load and line voltage.

The TPS53128PWR also features a high switch frequency of up to 1.2MHz, enabling it to operate at an extremely shallow depth. The efficiency of the power supply is further ensured by its low quiescent current of only 55µA, which allows for a wide range of applications requiring low power and high efficiency.

The TPS53128PWR also incorporates a built-in under-voltage lockout circuit and low-diode forward voltage protection, both of which serve to protect the device from over-voltage, under-voltage protection, and component reverse connect protection. It is also integrated with a maximum peak current limit circuit, which provides protection against excessive power demand.

Conclusion

The TPS53128PWR is a versatile DC-DC Switching Controller PMIC. It is suitable for a wide range of applications, operating principle,and features a number of protective circuits to protect it from hazards. It is an ideal choice for various DC-DC switchable power supply projects.

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