LTC3202EDD - High Efficiency, Low Noise, 1.2MHz Step-Up Charge Pump from Linear Technology

The LTC3202EDD is a versatile and compact step-up charge pump designed by Linear Technology, now part of Analog Devices, to cater to the demanding needs of battery-powered devices. This high-efficiency converter operates at a fixed frequency of 1.2MHz, allowing for small external components while minimizing the solution footprint on the PCB.

Encased in a low-profile (0.75mm) DFN package, the LTC3202EDD is ideal for space-constrained applications. Its dimensions, a mere 3mm x 3mm, make it an excellent choice for portable devices where size is a critical factor. The product is designed to deliver a regulated output voltage from an unregulated input supply, making it perfect for handheld devices that require consistent power for LED backlights or other similar functions.

One of the key features of the LTC3202EDD is its ability to provide high efficiency across a wide range of load currents. This efficiency is achieved through its 1x/1.5x/2x fractional charge pump modes, which automatically optimize the conversion based on the voltage difference between the input and output. This feature ensures that power consumption is minimized, thereby extending battery life in portable applications.

The device also boasts low noise operation, thanks to its constant frequency operation and ceramic capacitors, which reduce output ripple and eliminate the need for inductors. This makes the LTC3202EDD an excellent choice for noise-sensitive applications such as RF devices or high-quality audio products.

Furthermore, the LTC3202EDD includes built-in soft-start circuitry to limit inrush current during startup, thermal shutdown for protection against excessive temperatures, and a low shutdown current of less than 1µA which further conserves battery life when the device is not in use.

In summary, the LTC3202EDD from Linear Technology is a high-performance, efficient, and low-noise charge pump solution suitable for a wide range of portable applications. Its small size, high efficiency, and low noise operation make it an ideal choice for designers looking to optimize their power management solutions in compact electronic devices.