The LT3009EDC-1.8#TRPBF is a high-performance, low dropout linear regulator (LDO) from Linear Technology, designed to deliver a fixed 1.8V output from a wide input voltage range. This LDO is part of the LT3009 series, known for their low quiescent current, making them ideal for battery-powered and energy-sensitive applications.

Key Features

• Output Voltage: Fixed 1.8V with high accuracy.
• Low Dropout Voltage: Capable of operating with a very low dropout voltage, which enhances efficiency and allows operation over a wide range of input voltages.
• Low Quiescent Current: Ultra-low quiescent current of 3μA (typical), which is crucial for extending battery life in portable devices.
• Output Current: Capable of delivering up to 20mA of continuous output current.
• Stable with Low ESR Capacitors: Stable with ceramic capacitors, which reduces the need for bulky tantalum capacitors, thus saving board space and cost.
• Thermal Protection: Includes internal thermal shutdown protection to safeguard the device under over-temperature conditions.
• Reverse Battery Protection: No reverse current flow from output to input, which protects the device and the power source in case of reverse battery installation.

Applications

The LT3009EDC-1.8#TRPBF is suitable for a variety of applications that require a stable and efficient power supply. Its low quiescent current and low dropout voltage make it an excellent choice for battery-powered equipment, portable instruments, and wireless devices. Additionally, it can be used in automotive power supplies, power management for microprocessors, and in industrial control systems where power efficiency is critical.

Package and Availability

The device comes in a compact, 6-lead DFN package with a low thermal resistance, making it easier to integrate into space-constrained designs. The part number LT3009EDC-1.8#TRPBF indicates that it is available in tape and reel packaging, which facilitates automated manufacturing processes.