TPS62170QDSGRQ1 Integrated Circuits (ICs)

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TPS62170QDSGRQ1 is a highly efficient, low-quiescent current, low-profile DC/DC converter, which provides excellent performance in a compact solution size. It is housed in a 1.8mm x 2.0mm Inken package, and includes integrated N-channel and P-channel MOSFETs. This device is intended for use in portable electronic products requiring low power consumption, high efficiency, and a wide operating temperature range.

The TPS62170QDSGRQ1, provides a 4V to 35V input voltage range, delivering a regulated 5V or 3.3V output with a maximum output current of up to 1A. It features an internal synchronous rectifier and an adjustable switching frequency of up to 10MHz. This device also features integrated over-temperature, over-current and over-voltage protection features and low quiescent current of just 2.2mA.

Application Field:

The TPS62170QDSGRQ1 is best suited for powering small devices such as digital cameras, portable electronics, mobile phones, and other consumer devices. Due to its low quiescent current and excellent efficiency, it is ideal for use in portable consumer devices and embedded systems where power efficiency and wide temperature range are essential. It can also be used in multiple output applications such as automotive, industrial, and medical devices.

Working Principle:

The principle of operation of the TPS62170QDSGRQ1 is based on the PWM switching regulator circuit. This type of regulator works by rapidly switching the voltage source between two opposite states, such that the average voltage is equal to a fixed reference. In the TPS62170QDSGRQ1, a power MOSFET is used as the switch in the circuit. The voltage reference signal is compared to a triangular waveform generated by an oscillator, and then the difference is applied to the gate of the MOSFET switching it on or off. When the switch is on, the input voltage is applied to the output, and when the switch is off, the output voltage is discharged across a low-resistance load connected to the output. The duty cycle and thus the output voltage are adjusted by varying the comparison voltage.

The TPS62170QDSGRQ1 also includes an internal synchronous rectifier to reduce switching losses and improve efficiency. The synchronous rectifier is an additional MOSFET that changes its state when the input voltage is higher than the output voltage, and prevents the current from flowing through the diode.

The TPS62170QDSGRQ1 also includes integrated protection features for over-temperature, over-current, and over-voltage. The over-temperature protection is implemented by reducing the output current if the temperature exceeds the predetermined threshold. The over-current protection is implemented by reducing the output voltage if the current exceeds the maximum current limit. The over-voltage protection is a safety measure to prevent damage to the load due to an excessive output voltage.

In summary, the TPS62170QDSGRQ1 is a highly efficient and low profile DC/DC converter, which provides excellent performance in a compact solution size. It features an adjustable switching frequency and an integrated synchronous rectifier to reduce switching losses and improve efficiency. It also includes integrated protection features for over-temperature, over-current, and over-voltage.

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