Linear Technology LTC3490ES8#PBF - High Power, Single Cell, Step-Up DC/DC Converter

The LTC3490ES8#PBF is a robust, high-performance step-up DC/DC converter from Linear Technology, designed to provide a compact and efficient power management solution for single-cell applications. This versatile device is capable of generating a fixed output voltage from a single-cell lithium-ion or alkaline battery, which makes it an ideal choice for portable electronic devices that require a stable power supply.

Key Features:

• High Efficiency: The LTC3490ES8#PBF features an internal 1.3A switch that allows for up to 96% efficiency, ensuring minimal power loss during conversion and extending battery life.
• Adjustable Output: This converter can deliver a fixed output voltage of 3.3V or 5V, which is selectable via a single external resistor, providing flexibility for different application requirements.
• Wide Input Voltage Range: It operates from an input voltage range of 1.8V to 5.5V, accommodating a variety of single-cell battery chemistries.
• Low Quiescent Current: The device features a low no-load quiescent current of only 20μA, making it suitable for battery-powered applications where power conservation is critical.
• Compact Package: Enclosed in an 8-lead SO package, the LTC3490ES8#PBF is designed for space-constrained applications.

Applications:

• Portable Medical Devices
• Handheld Instruments
• Wireless Communication Devices
• GPS Devices
• Small LCD Displays

The LTC3490ES8#PBF also includes additional features such as thermal protection, and a shutdown function that reduces the supply current to less than 1μA, further conserving battery life during idle periods. Its internal soft-start function limits inrush current during startup, providing a smooth transition to operation.

With its high efficiency, versatile output configurations, and compact design, the LTC3490ES8#PBF from Linear Technology is an excellent power solution for designers looking to maximize the performance of their single-cell powered products.