LTC3526BEDC-2#TRMPBF - High-Efficiency Step-Up DC/DC Converter

The LTC3526BEDC-2#TRMPBF is a compact, high-efficiency, fixed-frequency step-up DC/DC converter from Linear Technology, designed to meet the needs of space-constrained portable applications. It is ideal for powering devices from a single-cell lithium-ion (Li-Ion) battery or other power sources within a voltage range of 0.85V to 5.5V. This product stands out for its ability to provide continuous output currents up to 400mA (at 3.3V output) from a 1.8V input, making it an excellent choice for handheld devices, medical equipment, and other battery-operated electronics.

The LTC3526BEDC-2#TRMPBF operates at a fixed frequency of 1MHz, allowing the use of small, low-cost capacitors and inductors while minimizing the solution footprint on the PCB. Its internal synchronous rectification enhances efficiency, which is typically up to 94%, thereby extending battery life and reducing power loss. The device also includes a low-battery detector, thermal protection, and a SHDN pin for enabling shutdown mode, which reduces the quiescent current to only 0.1µA, further conserving battery life when the device is not in active use.

This step-up converter comes in a 6-pin DFN package with a low profile (0.75mm) and a small footprint (2mm x 2mm), which is especially advantageous for ultra-compact applications. The LTC3526BEDC-2#TRMPBF also features an internal soft-start to limit inrush current during startup, and its current mode operation provides excellent line and load transient response.

Key features of the LTC3526BEDC-2#TRMPBF include:

• Wide Input Voltage Range: 0.85V to 5.5V
• Adjustable Output Voltage up to 5.25V
• Up to 94% High Efficiency
• 1MHz Fixed Frequency Operation
• Internal Synchronous Rectification
• Low Quiescent Current: 7µA
• Low Shutdown Current: 0.1µA
• Internal Soft-Start
• Low Battery Detector
• Thermal Protection
• Compact 6-Pin DFN Package

With its robust feature set and high efficiency, the LTC3526BEDC-2#TRMPBF is an excellent power management solution for designers looking to optimize power consumption and extend battery life in their portable and wearable technology projects.