Extend Battery Life in Portable Devices with New Ultra-low Iq LDO

Published  October 23, 2018   0
S Staff
Extend Battery Life in Portable Devices with New Ultra-low Iq LDO

Minimizing power consumption in portable electronics devices is a top priority for product designers. In order to meet the expectations and help increase the battery-life, Microchip introduced a linear Low Dropout (LDO) regulator that extends battery life in portable devices up to four times longer than traditional ultra-low quiescent (Iq) LDOs. With an ultra-low Iq of 250 nanoamps (nA) versus the approximately 1 uA operation of traditional devices, the MCP1811 LDO reduces quiescent current to save battery life, enabling end users to recharge or replace batteries less often.


The MCP1811 LDO with 250 nA ultra-low Iq reduces power consumption in applications by minimizing standby or shutdown current, thus making it suitable for IoT and battery-operated applications such as wearables, remotes and hearing aids. Reducing standby power consumption is critical in remote, battery-powered sensor nodes, where battery replacement is difficult and operating life requirements are high.


Available in package options as small as 1 x 1 millimeter (mm), the MCP1811 requires minimal board space to fit in compact portable electronic designs. Depending on the application and number of LDOs, designers can take advantage of the extra board space with a larger battery to further increase battery life.   


Moreover, the MCP1811 offers faster load line and transient response when compared to other ultra-low Iq LDOs. Faster response times can accelerate wake-up speed in devices such as monitors or sensors that require immediate attention. Faster transient response can help designers avoid undervoltage and overvoltage lockout measures used in sensitive applications where transient spikes can lead to catastrophic results.


Pricing and Availability

The MCP1811 is available for sampling and in volume production starting at $0.28 USD per 10,000 units for a 1 x 1 mm DFN package.