New low for LT3021

News

Linear Technology Corporation

has announced the release of fixed low-output voltage options for the LT3021, the power industry's first 500mA VLDO (very low dropout regulator).

It is said to feature input voltage capability as low as 1.4V for fixed output voltages down to 1.2V. Fixed 1.5V and 1.8V options are also offered. According to Linear, the LT3021's low input voltage capability is important for emerging applications using a 1.5V main rail that require output voltages down to 1.2V to drive low voltage microprocessor and microcontroller cores.

The LT3021 maintains its 160mV dropout voltage up to 500mA of operating current, making it ideal for applications requiring a low VIN to VOUT differential. Additionally, it offers micropower operation with only 120uA of quiescent current and less than 3uA in shutdown, maximising battery run time in handheld applications.

The LT3021 regulator optimises stability and transient response with low ESR, ceramic output capacitors as small as 3.3uF. Other LT3021 features include 0.05% line regulation and 0.2% load regulation.

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