The LTC3528EDDB#TRMPBF is a high-efficiency, fixed-frequency, dual-channel, synchronous step-up DC/DC converter from Linear Technology, which is now part of Analog Devices. This compact and powerful component is specifically designed to operate from an input voltage as low as 0.85V, making it ideal for single-cell or multi-cell alkaline, NiMH, or NiCd, as well as other types of low voltage power sources.

Key Features

• Wide Input Voltage Range: Operates from 0.85V start-up, with a minimum operating voltage of 0.5V after start-up, allowing the device to draw power from sources with significant voltage drop during discharge.
• Dual Channel Outputs: The converter provides two independent output voltages, which can be set by external resistors, with the capability to deliver up to 50mA on Vout1 and 200mA on Vout2, suitable for powering diverse sets of loads.
• High Efficiency: Integrated synchronous rectification enables efficiencies up to 94%, which is beneficial for maximizing battery life in portable applications.
• Fixed Frequency Operation: Operates at a fixed frequency of 1MHz, allowing for small external components, reduced noise sensitivity, and predictable performance.
• Low Profile Package: Comes in a low profile (2mm x 3mm) DFN package, ideal for space-constrained applications.
• Thermal Protection: Features thermal shutdown to protect the device under over-temperature conditions.

Applications

Due to its low input voltage capability and high efficiency, the LTC3528EDDB#TRMPBF is an excellent choice for a variety of applications, including but not limited to:

• Portable Medical Devices
• Wireless Sensors
• Energy Harvesting Systems
• Backup Power Supplies
• Handheld Instruments

This component is available in a RoHS-compliant package and is supplied in tape and reel form for use in automated manufacturing environments. The LTC3528EDDB#TRMPBF is a testament to Linear Technology's commitment to providing innovative power solutions for complex, low-voltage applications.