TPS55162QPWPRQ1

Series:	*
Packaging:	Tape & Reel (TR)
Part Status:	Active
Mounting Type:	Surface Mount
Package / Case:	20-PowerTSSOP (0.173", 4.40mm Width)
Supplier Device Package:	20-HTSSOP

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Introduction The TPS55162QPWPRQ1 Application Field and Working Principle is a single power supply, highly efficient, step-down DC-DC switching regulator. It provides up to 1A of continuous output current with an input voltage range of 2.6V to 5.5V. This device includes two unique features: a high-performance, wide range of adjustable output voltage, and a PWM modulated output for improved system efficiency and dynamic response. Additionally, it incorporates several protective features such as cycle-by-cycle current limiting, thermal shutdown, and over-voltage protection. Application Field The TPS55162QPWPRQ1 is widely used in power management applications such as personal computers, high-speed printers, portable media players and cell phones. It automatically maintains the output voltage of the system when the input voltage is out-of-tolerance. Applications include power-over-Ethernet (PoE) systems, telecommunications applications, consumer electronics, power-conversion applications, personal computers, VCR and DVD applications, and various consumer equipment. Working Principle The TPS55162QPWPRQ1 utilizes pulse-width modulation (PWM) control, protection and power consumption techniques to provide optimized performance. The device can be synchronized to an external clock, allowing the user to adjust the current level to achieve the desired output voltage and to improve system efficiency. An internal feedback loop limits the output voltage, while an external control voltage provides control flexibility.In order to improve the efficiency of the system, a current-mode control loop is used. The current loop senses the current in the power switch and limits the duty-cycle to a maximum, reducing switching losses. Additionally, the power switch undergoes a soft start cycle to prevent in-rush current when the device is first started up. Conclusion The TPS55162QPWPRQ1 is a highly efficient step-down DC-DC switching regulator, providing up to 1A of continuous output current with an input voltage range of 2.6V to 5.5V. Its high-performance, wide range of adjustable output voltage and PWM modulated output make it suitable for different power management applications. It also features various protective features to provide an efficient, reliable and safe power supply.

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