TPS62300DRCRG4

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TPS62300DRCRG4 is a Low-IQ, 600mA integrated buck converter with high-accuracy output Voltage, a wide input range and low shutdown current. It is one of a group of low current DC-DC switching regulators.

It works as an integrated step-down DC-DC converter which operates from an input supply that can range between 0.75V and 15V. It integrates a 650mA high-speed power MOSFET switch and a 2.5V reference to produce a highly accurate output voltage. The internal power switch current limit can be set by the external MOFSET selection eliminating the need for an external series resistor. This allows the device to run at a maximum frequency up to 2.2MHz.

Features of the TPS600DRCRG4 include: adjustable output Voltage from 0.9V to 5V, programmable switch current limit through an external MOSFET, low 96mV dropout voltage, an Ultra-low 1.9uA output quiescent current for high efficiency, a low 0.85uA sleep mode quiescent current, an adjustable soft-start and a power-good indicator.

Applications for the TPS600DRCRG4 include: Li-Ion and Li-Polymer battery power management, notebook and handheld computing systems, instrumentation and point-of-sale terminals, automated test equipment and portable medical and gaming devices.

The TPS600DRCRG4 works by having an input voltage applied to its input pin, where a reference voltage of 2.5V is generated internally. A voltage divider formed a signal to be compared to the reference voltage, with the regulated output voltage controlled by either an internal resistor or by an external resistor consisting of an external MOSFET.

Then, the signal is compared with the reference voltage and a switching element is triggered when the reference voltage is greater than the signal voltage. This pulls the output voltage to a value lower than the input voltage, producing the output voltage regulated according to the ratio of the resistors. When the signal voltage is higher than the reference voltage, the output voltage will remain at a constant level.

In summary, the TPS600DRCRG4 is a low-IQ, 600mA integrated buck converter with high-accuracy output voltage, a wide input range and low shutdown current. This DC-DC switching regulator is perfect for use in applications such as Li-Ion and Li-Polymer battery power management, notebook and handheld computing systems and instrumentation. Thanks to its integrated power MOSFET switch and an internal reference, the TPS600DRCRG4 can produce an adjustable and highly accurate output voltage of up to 5V at a maximum frequency of 2.2MHz.

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