Product Overview: TPS79928DDCT by Texas Instruments

The TPS79928DDCT is a high-performance, low-dropout (LDO) linear voltage regulator from Texas Instruments, designed to deliver a stable and clean power supply to sensitive electronic circuits. This regulator is capable of sourcing up to 200mA of output current while maintaining a low dropout voltage, making it an ideal choice for battery-powered applications where efficiency is paramount.

Key Features

• High Accuracy: The TPS79928DDCT boasts an impressive output voltage accuracy of ±2%, ensuring reliable performance for precision applications.
• Low Dropout: With a typical dropout voltage of only 40mV at 200mA, this LDO helps to maximize battery life by operating efficiently even when the input-to-output voltage differential is minimal.
• Low Quiescent Current: The device exhibits a very low quiescent current of 45µA during operation and 1µA in shutdown mode, which is beneficial for portable and battery-operated devices, as it minimizes power consumption when idle.
• Stable with Low-ESR Capacitors: The TPS79928DDCT is stable with ceramic capacitors that have a low equivalent series resistance (ESR), reducing the size and cost of the external components required.
• Thermal and Overcurrent Protection: Built-in thermal shutdown and overcurrent protection features safeguard the device and the downstream circuitry from damage due to excessive temperatures or current draw.

Applications

The TPS79928DDCT's versatility allows it to be used in a wide array of applications, including:

• Mobile phones and PDAs
• Digital cameras and audio devices
• Portable and battery-powered equipment
• Wireless LAN and Bluetooth® modules

Package and Availability

Encased in a small, 5-pin SOT-23 package, the TPS79928DDCT is designed for space-constrained applications. It is available in a fixed output voltage version of 2.8V, which can be directly used in designs without the need for external resistors to set the output voltage.

With its combination of high accuracy, low dropout, and low-power consumption, the TPS79928DDCT from Texas Instruments is an excellent choice for designers looking to optimize the performance and extend the battery life of their portable and handheld devices.