RT9193-33GF

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PMIC – Voltage Regulators – Linear have a variety of applications and have been a tool for regulating the voltages for several years. One particular example is the RT9193-33GF. This device is a Low Drop Out (LDO) linear regulator that can deliver up to 500mA of continuous current. The output voltage can be regulated from 1.2V to 3.6V.

The RT9193-33GF has an input voltage range of 2.7V-6.5V, which should allow it to generate outputs of any voltage within the 1.2V-3.6V range. This is due to its wide input voltage range, its no-load quiescent current feature of 30uA, and the very low dropout of 220mV (maximum).

The RT9193-33GF has a number of features to make it suitable for its application field. Firstly, it has an internal band-gap voltage reference allowing it to maintain consistent voltage levels resulting in accurate supply regulation. It also has an internal thermal shutoff protection, which helps protect the device from overheating when the load current supplied is close to its 500mA maximum current rating.

To ensure the accuracy and stability of the voltages supplied, the RT9193-33GF’s working principle involves a voltage divider circuit at the output to ensure a consistent level of voltage no matter what happens on the other side of the power line. This works just like regular voltage regulation, where a high current is shunted through a resistor to bring down the voltage to the desired levels and a fixed bias ensures that the same voltage is maintained when the input voltage and the load current both change.

The RT9193-33GF is also rather power efficient, with a low quiescent current of 30uA when no load is connected, and a maximum total quiescent current of 500uA when the load current is rated at 500mA. It also has an input current limit of 3A and a low 2.2uH output capacitor for a smooth output current response.

With a required no-load quiescent current of only 30uA, an input voltage range of 2.7V-6.5V, and a maximum total quiescent current of 500uA when the load current is rated at 500mA, the RT9193-33GF is an extremely efficient LDO linear regulator that can deliver up to 500mA of continuous current. Its internal band-gap voltage reference, low dropout of 220mV (maximum), and internal thermal shutoff protection make the RT9193-33GF a perfect choice for applications that require a reliable voltage regulator with great power efficiency, accuracy and stability.

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