AiT Semiconductor Inc. leaps forward with the unveiling of the A7534, a groundbreaking step-up converter designed to amplify output voltage from low-voltage sources. With its proprietary design, this converter boasts a remarkable feature: starting up at an astonishingly low input voltage of just 0.9V while consuming a mere 15 µA at standby. These exceptional characteristics position the A7534 as the go-to solution for operations powered by single-cell alkaline or NiMH batteries.
At the heart of its efficiency is a switching frequency of 1 MHz, which not only minimizes the solution's footprint but also enables the use of compact, low-profile inductors and ceramic capacitors. The current mode PWM design, internally compensated, significantly reduces the count of external components, simplifying the assembly process.
Available in SOT-23 and SOT89-3 packages, the A7534 offers versatility and flexibility to match various application needs. With ordering information specifying output voltages and package types, the A7534 caters to diverse requirements with precision.
Key features
- Exceptional efficiency of up to 95% under specific conditions.
- Standby current as low as 15 µA, conserving power for extended battery life.
- High switching frequency of 1 MHz allows for compact component selection.
- Boost-strapping capability enables the use of small or no input capacitors.
- Start-up voltage as low as 0.9 V, ideal for single alkaline cell operations.
- Maximum output current capability up to 300 mA ensures robust performance.
- Internally compensated current mode control and low noise PWM control enhance stability and performance.
Key applications
- Battery-operated devices ranging from one to three cells.
- Medical instruments, ensuring reliable power in critical applications.
- Bluetooth headsets, delivering seamless connectivity with enhanced power efficiency.
- Flash-based MP3 players, offering uninterrupted entertainment on the go.
- Noise-canceling headphones, providing immersive audio experiences with prolonged battery life
