The LTC3528EDDB#TRPBF is a high-efficiency, fixed frequency, dual-channel, synchronous step-up DC/DC converter from Linear Technology. It is designed to operate with an input voltage range of 0.85V to 5V, making it an ideal choice for battery-powered applications, including those powered by single-cell Li-Ion or multi-cell alkaline/NiMH batteries.
This compact converter comes in a 10-lead DFN (3mm x 3mm) package, which is optimized for space-constrained applications. The LTC3528 includes two independent output channels, each capable of delivering up to 50mA of continuous output current at voltages as high as 5.25V. Its internal switches have a low RDS(ON), providing efficiencies of up to 94%. This high efficiency reduces power loss and ensures longer battery life in portable devices.
The LTC3528EDDB#TRPBF features Burst Mode operation, which maintains high efficiency at low output currents while keeping the output ripple to a minimum. This makes it suitable for applications that require low noise and high efficiency across a wide range of loads. Additionally, the converter has a 1.2MHz fixed switching frequency that allows the use of small, low-cost capacitors and inductors while also minimizing the overall solution footprint.
Other notable features of this converter include short-circuit protection, thermal protection, and a wide temperature operating range. The device also has an "output disconnect" feature, which isolates the load from the battery when the converter is shut down, preventing battery drain.
The LTC3528EDDB#TRPBF is a versatile power solution that offers a combination of high efficiency, low quiescent current, and small form factor, making it an excellent choice for portable power applications such as medical devices, wireless sensors, and handheld instruments.
With its robust design and high functionality, the LTC3528EDDB#TRPBF exemplifies Linear Technology's commitment to delivering high-performance power management solutions.