We are providing technical information that can be used for selecting and designing power ICs.
Technical information
Technical Guide Basic/Theory Edition
Description of features and function
- What is a bypass capacitor / decoupling capacitor? Why is it necessary?
- Proper Handling of NC Pins
- What is backflow prevention function? What is complete backflow prevention function?
- How to calculate the pull-up/pull-down resistance value inside the IC?
- What are ship function and shipping mode?
- What is ideal diode? What is the difference from discrete?
- What are differences among load disconnection, bypass, and Vout OR of step-up DC/DC
- What are power conversion efficiency and power supply efficiency? How is the efficiency measured?
- What are output voltage fixed products (Vout products) and output voltage externally adjusted products (FB products)?
- What are Nch open drain output and CMOS output?
- What is CL discharge (discharge function)?
- What kind of characteristics are the load-transient response and line-transient response characteristic?
- What is thermal shutdown/overheat protection?
- What is chip enable (CE function) and enable function (EN function)?
- What are pull-up and pull-down resistances? What is an unstable state?
- What are High voltage, Low voltage?
- What is a threshold?
- What is the soft start function and what is the difference from the inrush current prevention function
- What is The Under Voltage Lock Out (UVLO)?
- What are the characteristics of load stability and load regulation?
- Voltage Regulator Current Limiting Methods
DC/DC Converters
- Advanced: How Is the Energy per Switching Cycle in PFM Control Determined?
- Operation Image of PWM and PFM Control
- DC/DC Converters Configuration and Control Methods
- Basic Operation of DC/DC (Buck, CCM)
- Why DC/DC Converters Are Efficient
- Overview of PWM and PFM Control
- Advantages / disadvantages of DC/DC converter
- What is DC/DC converter?
- PWM and Forced PWM (F-PWM), Pulse Skip of PWM
- Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM)
Voltage Regulators(VR)
Basics of Voltage Regulator
- What is a voltage regulator?
- Voltage regulator operation image
- Voltage regulator advantages and disadvantages
- Voltage regulator disadvantages: Loss and heat generation
- Deciding when to use voltage regulators or DC/DC converters
- Voltage regulator internal configuration
- Voltage regulator operation principles
Main Item and Characteristic of Voltage Regulator
Function of Voltage Regulator
Product Characteristics List/Comparison
Reset IC (Voltage detector / Watchdog Timer)
Basics of Voltage Reset IC (Voltage detector)
Features and Function of Reset IC (Voltage detector)
- Main characteristics of voltage detector : how to read SPEC - detect voltage / release voltage / hysteresis width
- Output current / ON resistance
- Release delay function
- Detection delay function
- Manual reset function
- Sense (VSEN) terminal separation function
- Function of voltage detector: unstable operation prevention function
- Function of voltage detector: hysteresis external adjustment function
Reset IC (Voltage detector) Design Edition
Technical Guide: Design & Practical Applications
Design Support Tools
How to Use DC/DC Measured Electrical Characteristics Comparison Tool / Example of Use
How to Use Web DC/DC Simulation / Example of Application
- Characteristics / usage of Web DC/DC simulation
- Web DC/DC Simulation: confirmation of basic characteristics / comparison with observation result
- Web DC/DC Simulation: how to confirm the coil current under actual use conditions / how to select an optimum coil
- Web DC/DC Simulation: how to estimate the junction temperature
- Web DC/DC Simulation: How to confirm the switching frequency of PFM / switching current in between PWM and PFM
- Web DC/DC Simulation: calculation of maximum output current of step-up / inverter DC/DC converter
- Web DC/DC Simulation: maximum output current / efficiency giving consideration to battery impedance
- Web DC/DC Simulation: confirmation of efficiency and loss ratio / improvement of efficiency using loss ratio
Circuit/Solution Example
Search by Input Power Source
- Primary Battery : Small and Low Consumption Solutions
- Li Rechargeable Battery : Small and Low Power Consumption Solutions
- Li Rechargeable Battery : Ultra-Small and Multi-Function Solutions
- Li Rechargeable Battery : Multiple Power Rail Solutions
- 3.3V : Small Solutions for Multiple Power Rails
- 5V : POL Solutions for Multiple Power Rails
- 12V/24V, Li Multi Cell and 4 Dry Cell : LDO Solutions
- 12V/24V ~60V Input : Small Solutions
- 12V/24V : Multiple power rail solutions
- 60V Input Compatible Small Solution
- LTO Battery : Solutions for Small and Low Consumption Devices
- Peak Current Assist/Backup using EDLC(Supercap)/Li-Cap
Search by Function / Application Circuit
- OR Connection Solutions for Backup and Multiple Power Sources
- Solutions for Energy Harvesting
- Peak Current Assist/Backup using EDLC(Supercap)/Li-Cap
- Reset IC Application Examples
- Compact and Space Saving Power Supply Solutions
- Low Profile Power Supply Solutions for h=0.33mm/0.40mm max.
- Step-up High Voltage and Positive-Negative Voltage Output Solutions
- Negative・Positive-Negative・Low-Power Isolated Power Supply Solutions
Search by Application
- IoT devices (primary battery）
- Small LTO batteries rechargeable by LDO (nominal 2.2V to 2.4V)
- Li-ion/Polymer battery operating devices, IoT and for backup
- OR Connection Solutions for Backup and Multiple Power Sources
- Solutions for Energy Harvesting
- Peak Current Assist/Backup using EDLC(Supercap)/Li-Cap
- Compact and Space Saving Power Supply Solutions
- Low Profile Power Supply Solutions for h=0.33mm/0.40mm max.
- Charging using the charging box/charging stand Power solutions for wearables, TWS and hearing aids
Circuit Examples and Technical Insights for Various Functions
Circuit/Application Circuit Example(TIPS)
What is ideal diode IC?
Application Circuit Example (TIPS) : Peripheral Circuit Edition
Application Circuit Example (TIPS) : IC Edition
Reference Adoption Example
Main Product Introduction
Power Management IC Basic Seminar Archive
Watch our technical seminars on power management ICs on demand, anytime.
After completing the registration form, you'll be able to watch the full version.
A seminar on power supply fundamentals explaining everything from the basic operation of voltage detectors (reset ICs) to how to select the right one.
A basic power supply seminar explaining the mechanism and selection of voltage regulators (VR/LDOs).
A seminar explaining the basic operation of DC/DC converters.
An introductory seminar explaining the fundamentals of power supply design using DC/DC converters.
