TPS77818PWP

TPS77818PWP Application Field and Working Principle

The TPS77818PWP is a Linear Voltage Regulator, designed and produced by Texas Instruments. This device offers all the features to build a complete, low-power and easy-to-use voltage regulation system. As a PMIC (Power Management IC), the TPS77818PWP provides a combination of power and high current power management with a variety of voltage and current output combination.

The TPS77818PWP is designed for direct battery connection for power management in a variety of portable and hand held device applications, such as cellular phones, handheld games, and set-top boxes. This device has a strong output current of up to 2 A (TPS77818PWP) and 3 A (TPS77818PWPQ). Efficiency wise, the TPS77818PWP is capable of achieving 95% efficiency in its DC/DC step down conversion process.

Output Specifications

The TPS77818PWP has very stable linear output regulation that comes with nominal output voltages of 1.5 V, 1.8 V, 2.5 V and 3.3 V. In addition, the TPS77818PWP also features an adjustable output voltage range of 0.6 V to 5 V, depending on the jumper setting. This range adjustment is a very useful feature. It is possible to adjust the output voltage range with just two configurable jumpers.

Protection Features

TPS77818PWP Linear Voltage Regulator also offers excellent protection features, such as over-current protection and short-circuit protection. This ensures safe operation of the devices and minimizes the chance of any system damages as a result of uncontrolled current flow.

Besides over-current and short-circuit protection, the TPS77818PWP also features thermal protection, absolute maximum junction temperature protection and the possibility of reverse bias protection. It also feature programmable current-limit protection, low-voltage and high-voltage protection.

In order to keep the device from overheating, the TPS77818PWP also features thermal shutdown (TSD) with an active hysteresis of 10C. The thermal protection keeps the device up and running, even under very harsh conditions.

Packaging and Pin Descriptions

The TPS77818PWP is available in 3-mm5x5QFN or 3 mm5x5 TSSOP package options. It comes with the following pin out numbers: AGND, VIN, PHASE, LX, LX_EN, LX_PG, FB, GND, and VSEN. Refer to the datasheet for exact descriptions of the pins.

Working Principle

The working principle of the TPS77818PWP Linear Voltage Regulator is identical to any other linear regulator device. When the input voltage is higher than the regulated output voltage, the TPS77818PWP will begin to operate, allowing the excess voltage to dissipate as heat. To control the output, the TPS77818PWP will adjust its series resistance, thereby regulating the output voltage.

The key components and features of the TPS77818PWP Linear Voltage Regulator make it an ideal choice for a wide range of applications. It is a reliable device that offers outstanding protection features and energy efficiency, making it one of the most popular choices when it comes to voltage regulation.