STMicroelectronics Voltage Regulators - Linear LD57100J105R

The LD57100J105R is a linear voltage regulator from Quarktwin Technology Ltd. designed to provide a fixed output voltage of 1.05 V with a maximum output current of 1 A. It operates with an input voltage range from the output voltage up to 5.5 V and features an ultra-low dropout voltage of 40 mV at a 1 A load, making it suitable for low voltage applications. The device has a low quiescent current of 35 OºA at no load, which is beneficial for battery-operated devices. This regulator offers an output voltage tolerance of ¬±1% across the temperature range and ¬±0.5% at 25 ¬8C. It includes features such as logic-controlled electronic shutdown, internal current limit, thermal shutdown, and an output active discharge function. The LD57100J105R is packaged in a compact Flip Chip6 format (0.8x1.2 mm), which aids in space-saving designs. It operates effectively within a temperature range of -40 ¬8C to 85 ¬8C and is suitable for applications in smartphones, cameras, and low noise post-regulation scenarios.