Linear Technology's LT1121CS8-3.3#TR Voltage Regulator

The LT1121CS8-3.3#TR is a highly efficient low dropout voltage regulator from Linear Technology, designed to deliver a stable 3.3V output. This component is a part of LT1121 series which are known for their low quiescent current and low dropout voltage, making them an excellent choice for battery-powered applications where energy efficiency is paramount.

Key Features

• Low Dropout Performance: With a typical dropout voltage of just 0.4V at a 150mA output current, the LT1121CS8-3.3#TR ensures efficient operation even when the input voltage is close to the output voltage.
• Low Quiescent Current: The device features a very low quiescent current of 30µA, which is reduced to 16µA in shutdown mode, thereby conserving battery life in portable applications.
• Output Voltage: The regulator provides a fixed output voltage of 3.3V, which is ideal for logic-level devices and other standard 3.3V operations.
• High Output Accuracy: This regulator maintains a high accuracy with a guaranteed output voltage tolerance of ±3% over the full line, load, and temperature range.
• Thermal Protection: It includes an internal thermal limiting feature that protects the device from overheating, ensuring reliable operation under a wide range of conditions.
• Stable with Low ESR Capacitors: The LT1121CS8-3.3#TR remains stable with output capacitors as low as 3.3µF, which can be ceramic, tantalum, or aluminum electrolytic, offering flexibility in design.
• Package: The device is available in an 8-lead SOIC package, which is suitable for surface-mount technology and occupies minimal board space.

Applications

Owing to its low power consumption and stable output, the LT1121CS8-3.3#TR is an ideal choice for a variety of applications. These include battery-powered equipment, portable computing devices, power supplies for DSPs and microcontrollers, automotive power supplies, and any application where an efficient and reliable power source is required.

Ordering Information

The LT1121CS8-3.3#TR is available in tape and reel packaging, denoted by the '#TR' suffix, making it suitable for automated assembly processes. This product reflects Linear Technology's commitment to providing high-quality power management solutions.