TPS62160QDSGRQ1

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TPS62160QDSGRQ1 is a High Efficiency, Low Quiescent Current, 20 MHz Step-Down Converter with integrated FET, part of the Texas Instruments’ family of point of load (POL) DC/DC switching regulators. It is designed to deliver up to 1.7 A of continuous output current at 80.5% efficiency with a 4.5V to 26V input supply and 8V to 22V output voltage range. The TPS62160QDSGRQ1 is optimized for high efficiency over wide input and output voltage range, and a wide range of ambient temperature.

The TPS62160QDSGRQ1 is a synchronous buck future-proof 10-lead small outline integrated circuit package (SOP-10) and is capable of up to a 20 MHz switching frequency. It also features a low quiescent current, programmable soft-start current ramp and auto-discharge of external capacitor when in shutdown. It is designed to deliver excellent line and load regulation, low output ripple noise, small form factor and appropriate safety features, making it suitable for many different applications.

TSP62160QDSGRQ1 Application Field

The TSP62160QDSGRQ1 is apt for a wide range of applications, including portable medical equipment, Wi-Fi routers, base-stations, personal computers, telecom equipment, automotive solutions, portable instrumentation, VoIP systems and industrial equipment. It is particularly useful for high efficiency solutions and higher output voltage applications.

Working Principle

The TPS62160QDSGRQ1 works on a synchronous buck switching regulator (also referred to as a DC/DC switcher) or step-down converter topology. A voltage regulator is an electronic regulator used to maintain steady and acceptable levels of output voltage in a circuit, regardless of changes in load, line and temperature changes. A buck regulator, or step-down converter, reduces the input voltage applied to the load while regulating the current and voltage. This is necessary when the power source (e.g. batteries) produces too high a voltage for the load which requires a certain amount of voltage to properly operate.

The core function of the TPS62160QDSGRQ1 is to take the input voltage and reduce it to the proper output voltage level, regulating the current and adjusting the ratio of on/off duty cycle to maintain the correct output. For each switching period, the output inductor is charged with a voltage given by the controlling circuit. The current is then sourced from an input capacitor. The output inductor is then discharged, creating a negative voltage. This voltage is clamped using an output diode and capacitor.

All of this is done seamlessly and efficiently to provide the desired output for the regulator. This is made possible by the programmable internal current limit, voltage range, soft start, hysteresis and clock source external resistor. In addition, the TPS62160QDSGRQ1 has programmable thermal protection and over-voltage protection for the load.

The TPS62160QDSGRQ1 is a high efficiency, low quiescent current, 20 MHz step-down DC/DC switching regulator with integrated FET. It is an ideal choice for many types of high efficiency solutions, delivered in a small form factor. Applications include portable medical equipment, Wi-Fi routers, base-stations, personal computers, telecom equipment, automotive solutions, portable instrumentation, VoIP systems and industrial equipment.

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