LTC3528EDDB - High Efficiency, 1A Synchronous Step-Up DC/DC Converter

The LTC3528EDDB from Linear Technology is a high-performance, synchronous step-up DC/DC converter designed to provide a compact and efficient power solution for portable devices. With its ability to generate a higher output voltage from a lower input voltage, the LTC3528EDDB is particularly well-suited for applications such as handheld medical instruments, wireless transmitters, and other battery-powered equipment.

Key Features:

• High Efficiency: The LTC3528EDDB features a high-efficiency design, capable of converting input voltages as low as 0.5V to a wide range of output voltages, making it ideal for single-cell Li-Ion or multi-cell alkaline/NiMH applications.
• Output Voltage: The device can provide a fixed output voltage of 3.3V or an adjustable output from 2V to 5.25V, catering to a variety of power requirements.
• Current Output: It is capable of delivering up to 1A of continuous output current at voltages as low as 1.8V from a single alkaline/NiMH cell or 3.3V from a single-cell Li-Ion battery.
• Integrated Synchronous Rectification: The inclusion of internal synchronous rectification improves efficiency by reducing power loss and eliminating the need for an external Schottky diode.
• Quiescent Current: The LTC3528EDDB boasts a low quiescent current, which is crucial for maximizing battery life in portable applications.
• Burst Mode® Operation: Linear Technology's proprietary Burst Mode operation ensures high efficiency at low output currents and reduces standby current consumption.
• Compact Package: The device comes in a small 8-lead DFN package with dimensions of 3mm x 3mm (EDDB package), making it suitable for space-constrained applications.

Applications:

The LTC3528EDDB's combination of features makes it an excellent choice for a wide range of applications, including:

• Portable Medical Devices
• Wireless Modems
• GPS Receivers
• Handheld Instruments
• MP3 Players
• Remote Sensors
• Backup Power Supplies

In summary, the LTC3528EDDB from Linear Technology is a versatile and efficient solution for boosting battery voltages to higher levels in portable electronic devices. Its high efficiency, low quiescent current, and compact size make it an excellent choice for designers looking to optimize power management in space and power-sensitive applications.