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Application Notes for Switching Regulators ICs

Document Title Brief Description
Calculation of Power Dissipation in Switching Circuit This application note describes how to calculate the power dissipation that occurs in a SiC MOSFET in a switching circuit with the SiC MOSFET during switching operations.
Calculation of Power Loss (Synchronous) This application note describes how to obtain the power loss required to calculate the temperature of a semiconductor device. Temperature control is important to ensuring product reliability
Considering Input Filter to Reduce Conducted Emissions by DCDC Converter This application note is about designing input filter which is attributed to reduce level of conducted emissions to an acceptable value for DC-DC converter.
Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter This application note is about radiated emission caused by a power inductor in a DC-DC converter dependent to the polarity of a coil.
Impedance Characteristics of Bypass Capacitor This application note focuses on the impedance characteristics of capacitors, and explains cautions for selecting bypass capacitors.
Importance of Probe Calibration When Measuring Power: Deskew Even when devices used for measurement are calibrated regularly, they will give incorrect results if calibration is not performed for the measurement environment. This application note explains the importance of probe calibration in power measurement environments.
Measurement Method for Phase Margin with Frequency Response Analyzer (FRA) This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.
Method for Monitoring Switching Waveform This application note explains how to correctly monitor the switching waveforms of the power device element such as switching power supply or a motor drive circuit.
Notes for Temperature Measurement Using Forward Voltage of PN Junction This application note explains cautions regarding the temperature measurement Using Forward Voltage of PN Junction. The content of this application note is generally applicable, irrespective of the types of semiconductor devices.
Notes for Temperature Measurement Using Thermocouples This application note explains cautions regarding the temperature measurement. The content of this application note is generally applicable, irrespective of the types of semiconductor devices.
Packaging Information Part number explanation.
Phase Compensation Design for Current Mode Buck Converter This application note explains the method used by ROHM for designing the phase compensation for current mode buck converters.
Power Supply Sequence Circuit with General Purpose Power Supply IC This application note proposes a circuit that accomplishes the power supply sequence without using any dedicated power supply sequence IC, by using general purpose power supply ICs.
Precautions When Measuring the Rear of the Package with a Thermocouple This application note describes precautions when measuring the temperature on the rear of a package using a thermocouple to find the junction temperature of a semiconductor chip during actual operation.
Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter This application note describes the method and result of the ripple and switching noise suppression using a linear regulator and a low pass filter.
Thermal resistance and thermal characterisation parameter The definition and how to use thermal resistance and thermal characterisation parameter of packages for ROHM’s integrated circuit are described in this application note.
Two-Resistor Model for Thermal Simulation This application note explains the two-resistor model, which is the simplest model among thermal models used in thermal simulations. The thermal simulations mentioned here cover three-dimensional model thermal conduction and thermal fluid analysis tools.

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