TPS54354PWPRG4

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TheTPS54354PWPRG4 is a synchronous buck voltage regulator integrated circuit that can provide a constant, regulated voltage to a load. The device operates in a switching mode, producing a constant output and efficiently managing the voltage and current rates to the load. It is ideal for use as a voltage regulator in a variety of electronic applications.

Overview

The TPS54354PWPRG4 is a member of the TPS54354 family of chips from Texas Instruments, which are the latest in the series of highly efficient synchronous buck voltage regulator products. The family includes buck converters with an input voltage rating of 4.5 V to 20 V and a single output of 3.3 V. The devices feature a peak efficiency of up to 95% over a wide operating temperature range.

The TPS54354 family is designed to be suitable for a wide range of applications, including industrial and automotive systems. It is a non-isolated buck regulator IC that is capable of reducing the input voltage to a regulated and stabilized output voltage. The circuit operates in either a continuous conduction or discontinuous conduction mode and is able to switch between the two modes based on the load.

Features and Benefits

The TPS54354PWPRG4 offers several benefits to its users that other voltage regulators are unable to provide. Some of the notable features of this voltage regulator include:

• Programmable soft start
• Wide input voltage range (4.5 V to 20 V)
• Programmable output voltage up to 3.3 V
• High output accuracy (±1.5% initial accuracy)
• Wide operating temperature range (–40°C to +125°C)
• Fault protection for over voltage, over temperature, and reverse current
• High peak efficiency up to 95%
• Low output voltage ripple (20 mVp-p) and low output voltage noise (4 mV RMS)
• Small package size (SOP-8) for space-constrained applications

Application Field and Working Principle

The TPS54354PWPRG4 is ideal for use in a variety of industries, including automotive, industrial, consumer electronics, and much more. It is ideal for use in applications where the input voltage is high, but the required output is low, such as in adjustable power supplies and LED lighting. The device is also suitable for high-current applications with a peak output current of 7 A.

The working principle of the TPS54354PWPRG4 integrates several different functions into a single package. The device first uses a step-up PWM controller and an external MOSFET to boost the incoming voltage, followed by a constant frequency variable on-time PWM control section. The output voltage is then regulated by a feedback control loop that regulates the output voltage based on a predefined voltage reference. In addition, the device also incorporates advanced protection features to protect against over-voltage, over-temperature, and current faults.

Conclusion

The TPS54354PWPRG4 is an advanced integrated circuit designed to provide regulation of input voltage to a stable output voltage across a wide range of applications. It is suitable for a variety of automotive, industrial, and consumer electronic applications, and provides several features and benefits, such as programmable soft start, wide input voltage range, high peak efficiency, wide operating temperature range, and advanced fault protection.

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