Linear Technology LTC3400ES6-1: High-Efficiency, Synchronous Step-Up DC/DC Converter

The LTC3400ES6-1 is a compact, high-efficiency, synchronous step-up DC/DC converter designed by Linear Technology for portable power applications. This miniature device comes in a ThinSOT package, specifically engineered to provide a space-saving solution for modern electronics where board space is at a premium. The LTC3400ES6-1 is ideal for converting low voltage power from single or dual-cell batteries to higher voltages required by today's multi-functional and power-intensive devices.

With an input voltage range of 0.5V to 4.5V, the LTC3400ES6-1 is capable of starting up with an input as low as 0.85V after which it can operate down to 0.5V, making it particularly suitable for applications powered by single-cell Li-Ion, or other alkaline/NiCd/NiMH cells. The output voltage is adjustable up to 5V, which allows for a wide range of applications and flexibility in design.

The LTC3400ES6-1 stands out due to its high efficiency, which can reach up to 96%. This is achieved through its synchronous rectification topology and internal switches with low RDS(ON). Moreover, the device features a Burst Mode® operation that significantly reduces quiescent current during light loads, thus prolonging battery life in portable applications.

For safety and reliability, the LTC3400ES6-1 incorporates a range of protective features. This includes over-temperature protection and current limiting to safeguard the device and the application during abnormal conditions. Additionally, the low-noise operation is guaranteed by the use of a constant frequency, PWM control scheme which also ensures excellent load and line regulation.

Key specifications of the LTC3400ES6-1 include:

• Adjustable output voltage up to 5V
• Up to 96% conversion efficiency
• Starts up into full load from a 0.85V input
• Operates down to 0.5V after start-up
• Low quiescent current in Burst Mode® operation
• Internal synchronous rectifier
• Internal compensation and soft-start
• Over-temperature protection and current limit

The LTC3400ES6-1 by Linear Technology is a versatile and efficient solution for power conversion in portable devices, ensuring extended battery life and reliable performance in a tiny package.