Introducing the LTC3459CS8 from Linear Technology

The LTC3459CS8 is a high-efficiency, fixed-frequency, synchronous step-up DC/DC converter designed to meet the rigorous demands of portable electronics and small-scale industrial systems. Engineered by Linear Technology, an industry leader in high-performance analog integrated circuits, this compact converter is housed in a space-saving 8-lead SO package, making it an ideal choice for applications where board space is at a premium.

Key Features

• High Efficiency: The LTC3459CS8 boasts an efficiency of up to 96%, ensuring minimal power loss and maximum battery life for portable devices.
• Wide Input Voltage Range: With an input voltage range of 0.9V to 5V, it is versatile enough to be powered from single-cell Li-Ion batteries or other low voltage sources.
• Adjustable Output Voltage: The output voltage is adjustable from 2.5V to 5.5V, providing flexibility to power a wide array of devices.
• No Schottky Diode Required: The synchronous rectification design eliminates the need for an external Schottky diode, reducing both cost and complexity.
• Low Quiescent Current: The device features a low no-load quiescent current, which is particularly beneficial for battery-powered applications where conserving energy is crucial.

Applications

The LTC3459CS8 is suited for a variety of applications, including:

• Portable Instruments
• Medical Devices
• Wireless Transmitters
• Handheld Computers
• GPS Receivers

Technical Specifications

The device operates at a fixed frequency of 1.2MHz, allowing the use of small, low-cost capacitors and inductors. It also features internal soft-start to limit inrush current during startup, and thermal shutdown for protection under high-temperature conditions. The LTC3459CS8 is designed to be stable with ceramic output capacitors, further saving space and cost.

With its robust feature set and compact form factor, the LTC3459CS8 from Linear Technology is the perfect power solution for designers looking to enhance the efficiency and longevity of their portable and space-constrained applications.