LDO extends portable devices’ battery life
Prolonging battery life by up to four times longer than traditional low quiescent (Iq) LDOs, the MCP1811 is a linear low dropout (LDO) regulator available from Microchip. It enables reduced standby power consumption in remote, battery-powered sensor nodes and also enables faster response times and transient response for IoT, wearable and remote designs, says Microchip.
The MCP1811 LDO has a low Iq of 250 nanoA, which compares favourably with the typical one microA (typical) operation of traditional devices. The LDO reduces quiescent current to save battery life, enabling end-users to recharge or replace batteries less often. The minimised power consumption enables portable electronic devices to run for months or even years on a single battery.
It is suitable for IoT and battery-operated applications such as wearables, remotes and hearing aids, where the low Iq reduces power consumption in applications by minimising standby or shutdown current. Reducing standby power consumption is critical in remote, battery-powered sensor nodes, where battery replacement is difficult.
The LDO is available in package options as small as 1.0 x 1.0mm DFN. The MCP1811 consumes minimal board space, says Microchip, to accommodate today’s portable electronics compact design. Depending on the application and number of LDOs, designers can use the extra board space with a larger battery to increase a product’s battery life further.
The MCP1811 also boasts faster load line and transient response than other low Iq LDOs, says Microchip. 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 to avoid under-voltage and over-voltage lockout measures used in sensitive applications where transient spikes can result it catastrophic results.
The MCP1811 is available for sampling and in volume production now.
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