TPS78225DRVT

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The TPS78225DRVR is a linear voltage regulator with high performance capabilities for a variety of applications. It offers excellent line and load regulation combined with a fast transient response to quickly regulate the output voltage. The TPS78225DRVR is available in a small MSOP-10 package, making it ideal for space limited applications. The device provides 0.75A of continuous output current, with up to 3A of peak current available during output transients.

The TPS78225DRVR operates over a wide temperature range of -40°C to +125°C and has an adjustable output voltage between 0.8V and 5.5V, as well as a fixed 3V output option. The device can also provide an ultra-low dropout voltage of 300 mV at 0.75A to maintain a regulated output voltage even at very low input voltage. This feature makes the TPS78225DRVR suitable for low voltage input power supplies such as single-cell Li-ion batteries.

The regulator employs internal current and thermal limit protection, making it capable of operating reliably and safely. The TPS78225DRVR also has an enable pin that can be used to turn the device off, reducing power consumption to a negligible 0.1 µA in shutdown mode. The device is available in both extended (-40°C to +125°C) and industrial (-40°C to +85°C) temperature ranges.

The TPS78225DRVR is well suited for use in a variety of applications including notebook and tablet PCs, portable medical devices, and automotive systems. It provides a good combination of size, performance, and features that makes it a great choice for low voltage power supplies such as single-cell Li-ion batteries.

The key advantages of the TPS78225DRVR are its excellent line and load regulation, a wide temperature range, and its ultra-low dropout voltage. It has been designed to meet the exacting specifications for automotive, battery-powered, and portable applications. It is also available in an extended -40°C to +125°C temperature range making it an ideal choice for applications in harsh operating environments.

The working principle of the TPS78225DRVR is to first use an internal low dropout (LDO) voltage regulator to convert the input voltage to a fixed output voltage. The output voltage is then regulated by an external feedback loop. The current output of the voltage regulator is monitored by a current sense comparator, and if it exceeds a certain level, an internal current-limit circuit reduces the output current to a safe level.

The TPS78225DRVR also features built-in thermal protection to protect against high temperature operation. The device automatically shuts down when the junction temperature exceeds a certain temperature. This prevents the device from becoming damaged due to excessive heat buildup.

The TPS78225DRVR is an excellent choice for a variety of applications due to its excellent performance, wide temperature range, and ultra-low dropout voltage. It can provide a highly efficient power supply solution that is reliable and cost-effective.

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