Lowpowersemi Products

Lowpowersemi offers a comprehensive portfolio of power management ICs including ultra-low power LDO regulators, high-efficiency DC-DC converters (buck and boost), Li-ion battery chargers, and load switches. These products are designed for battery-powered applications requiring minimal power consumption.

Choose LDOs for noise-sensitive circuits, DC-DC converters for high efficiency, battery chargers for Li-ion charging, and load switches for power distribution.

Select an LDO when the voltage differential is small (under 1V), when low noise is critical, or for simple cost-sensitive designs. Choose a DC-DC converter when the voltage differential is large, when high efficiency is required to minimize heat, or for battery life extension. Many designs use both - DC-DC for main conversion and LDO for post-regulation of sensitive rails.

LDO for small drops and noise-sensitive circuits; DC-DC for large drops and high efficiency requirements.

Lowpowersemi LDOs feature industry-leading quiescent current specifications. The LP3990 series has ultra-low 1μA quiescent current, ideal for always-on battery applications. The LP5907 series has 30μA quiescent current with higher PSRR for noise-sensitive applications. This low quiescent current significantly extends battery life in portable devices.

LP3990 for 1μA ultra-low power; LP5907 for 30μA with higher PSRR.

Lowpowersemi DC-DC converters achieve up to 95% efficiency under optimal conditions. The LP6235 buck converter and LP6250 boost converter both feature synchronous rectification and automatic PFM/PWM mode switching to maintain high efficiency across the entire load range. Actual efficiency depends on input voltage, output voltage, and load current.

Up to 95% efficiency achievable; check efficiency curves for your specific operating conditions.

Yes, Lowpowersemi offers complete battery charging solutions for single-cell Li-ion and Li-Polymer batteries. The LP4054 is a standalone linear charger with up to 800mA charge current. The LP4056 features power path management, enabling simultaneous charging and system operation. Both include comprehensive safety features and precise voltage regulation.

LP4054 for standalone charging; LP4056 for power path and simultaneous operation.