There are two types of voltage regulators most often used to supply the different voltage rails on a system on a chip (SoC): linear regulators, like low dropout (LDO) regulators, and switching regulators, like the DC-DC converter.
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4 Practical Concerns When Using an External Capacitor with Your LDO
A low dropout (LDO) voltage regulator is often used in complex SoC systems to provide a stable and highly accurate low-noise output voltage. To obtain acceptable transient response, power supply noise rejection (PSR), and stability of the LDO, LDO voltage regulators normally require an external capacitor. Traditional LDO voltage regulators use off-chip output capacitors in the range of a few microfarads. The external capacitor, however, has four major concerns that must be considered when selecting one for applications where they are required.
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Vidatronic is a leader in analog Intellectual Property (IP) for integration into systems on a chip (SoCs), including integrated power management unit (PMU), CMOS radio-frequency (RF), and LED lighting solutions. Vidatronic was co-founded in 2010 by Moises Robinson, Ph.D. and Edgar Sanchez-Sinencio, Ph.D.
Get to know Vidatronic, Inc. through this message from our President and Co-Founder, Moises Robinson.
[Read more…] about VIDEO: A Message from Our Company Co-Founder & PresidentAn Introduction to Evaluating DC-DC Converter Features and Parameters
All high-performance applications require a specific, regulated, and stable power supply voltage. This cannot be guaranteed, however, by conventional battery technology and requires an intermediate voltage regulator circuit to generate the required supply. Voltage regulators not only provide supply regulation, they also maintain noise isolation between different blocks sharing the same supply. Regulating a power supply to meet the minimum requirement of a specific application extends the battery life, which is crucial in all portable applications.
[Read more…] about An Introduction to Evaluating DC-DC Converter Features and ParametersVIDEO: Introduction to Power Management for IoT SoC Design
Companies entering the market for Internet of Things (IoT) and Narrowband IoT (NB-IoT) applications will begin to see that in order to remain competitive, they must implement their SoC designs with the highest levels of integration.
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