RT9193-2HGB

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The RT9193-2HGB is a adjustable Low Dropout (LDO) Linear Voltage Regulator. It is an economical, low noise and low dropout voltage regulator with a high power conversion efficiency. It provides a stable output voltage and has the ability to regulate a wide range of input voltages. The RT9193-2HGB is a cost-effective and efficient PMIC solution for a variety of applications.

Application Fields

The RT9193-2HGB is suitable for use in a variety of mobile and handheld applications, including portable computers and tablet PCs. It is also used in LED-based panel monitors and LCD TVs. It can be used in networking and communication solutions, such as home and commercial routers, residential gateways and other communication devices. It can be used for automotive and industrial applications, including embedded systems. The RT9193-2HGB is also used in automotive-grade DC/DC applications.

Working Principle

The RT9193-2HGB is a Low Dropout (LDO) Linear Voltage Regulator with adjustable output voltage capabilities. The LDO operates as a series voltage regulator, and its output voltage is set by connecting external resistors to the ADJ pin. The LDO utilizes an internal error amplifier, which continuously monitors the output voltage and adjusts the current flowing through the pass element to maintain regulation. This allows the LDO to maintain a stable output voltage with minimal input voltage variations.

The LDO is a current-mode voltage regulator and is controlled by an internal control loop. The control loop works by comparing the output voltage with a reference voltage. The reference voltage is derived from a bandgap reference and set by using external resistors. When the output voltage deviates from the reference, the control loop adjusts the output current of the LDO to bring the output voltage back to the desired level. The internal control loop also prevents the output voltage from rising above the set value even when the input voltage is significantly higher than the output voltage.

The output voltage of the RT9193-2HGB is adjustable with a wide range of external resistors. Its minimum and maximum output voltage is 1.2V and 5.0V respectively. The device also has a low quiescent current of only 0.7mA. It has over-temperature and short-circuit protection. The device is available in SOT-238-4N package.

Conclusion

The RT9193-2HGB is a versatile, economical and efficient Low Dropout (LDO) Linear Voltage Regulator. It is ideal for applications that require low noise and low dropout voltage regulation with a high power conversion efficiency. Its adjustable output voltage capabilities and its low quiescent current make it a suitable solution for a variety of mobile and handheld, automotive and industrial applications.

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