Calculation tool
LM25141DESIGN-CALC
LM25141-Q1 controller quickstart design tool
LM25141DESIGN-CALC
Overview
Welcome to the LM25141-Q1 quickstart calculator design tool. This standalone tool facilitates and assists the power supply engineer with design of a DC/DC buck regulator based on the LM25141-Q1 42-V synchronous buck DC/DC controller with low IQ. As such, the user can expeditiously arrive at an optimized design to meet the application requirements
Features
- Determine buck inductance and input and output capacitances
- Select components for soft-start, hiccup-mode restart, OCP, switching frequency and output voltage setpoint(s)
- Optimize compensation values and pole/zero placement in terms of control loop stability using crossover frequency as a performance metric
- Inspect regulator efficiency, solution size and component power dissipations with ambient temperature as a parameter
- Review auto-generated schematic and BOM list
- Determine EMI filter components and spread spectrum modulating frequency
Downloads
Additional resources you might need
Calculation tool
LM25141DESIGN-CALC — LM25141-Q1 controller quickstart design tool
Supported products & hardware
Products
AC/DC & DC/DC controllers (external FET)
Hardware development
Evaluation board
Supported products & hardware
AC/DC & DC/DC controllers (external FET)
Evaluation board
Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| EVM User's guide | LM5141-Q1 EVM User’s Guide (Rev. A) | 10 Jan 2018 |
Related design resources
Reference designs
REFERENCE DESIGN
Support & training
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