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Power Adapters & Chargers

Efficient & Scalable Power Across Systems & Platforms

From efficient and reliable power adapters to safe, optimized battery charging and real-time power monitoring, Renesas offers a broad and robust portfolio of enabling devices and complete solutions, spanning AC/DC adapters, USB Power Delivery (PD) and Extended Power Range (EPR) systems, battery chargers, and intelligent power management.

Supporting designs from compact electronics in the 65–100W range to high-power systems up to 240W, including portable power stations and uninterruptible power supplies, we enable reliable power across a wide range of applications.

High-Efficiency Power

Optimized for high conversion efficiency and intelligent power management, our solutions deliver high efficiency to help meet global energy-efficiency requirements.

Built for Global Certification & Interoperability

Our solutions are designed to meet specifications, certifications, and compliance requirements as well as interoperability and safety standards to speed up development, lower risk, and deliver reliable, market-ready systems.

Integrated Protection & Power Management

Our devices and systems integrate protection and safeguards such as OVP, OCP, OTP, USB PD–based power derating, and intelligent monitoring for bidirectional power flow, and more to enable smart, flexible, and reliable operation across a wide range of power adapter and charger applications.

Scalable Power Across a Wide Wattage Range

We enable power from 65W to 240W from adapters and chargers to high-power systems with USB-PD EPR. With flexible architectures and smart power negotiation, design scalable, future-ready platforms across multiple power levels, applications, and systems.

Power Adapters & Chargers Applications

Designing Power Systems: Adapters, Chargers, & More

AC Adapters

AC Adapters

Converting AC power to DC is a crucial part of power adapters and chargers. When converting AC to DC, design challenges of high-voltage isolation and safety, efficiency when dealing with high power, and thermal density for small or compact form factors is important.

We offer compact and versatile solutions with some of the smallest AC/DC packages on the market with advanced protection, control, and power efficiency.

240W USB PD AC/DC Adapter Application Overview

DC Adapters

DC Adapters

DC adapters need to handle wide input voltage ranges, operate with high efficiency in their power conversions, be interoperable with multiple sources, and be power and thermal-efficient.

We offer DC adapters to support primary DC/DC conversion, intermediate rails, point-of-load regulation, power sequencing, and more. Our solutions provide high efficiency and low loss as well as built-in protections, just as OVP, OCP, and thermal to ensure power and thermal efficiency in compact designs.

Inserted black 12-volt adapter plug.

Chargers

Chargers

Chargers are an essential system needed to interface between power sources, devices, and battery systems. These systems should be able to strike an optimal balance between fast charge and battery longevity while ensuring thermal management and facilitating capabilities for multiple outputs and bidirectional power flow.

We offer a variety of charger solutions to help your charging needs, from wired to wireless systems, interfaces like USB, multiple device charging, and more.

Zero Standby USB-C Adapter Application Overview

Battery Systems

Battery Systems

Batteries are an essential part of many electronic systems to provide portability and enable reliable power while on the go. However, when designing with batteries, there are crucial considerations for safe energy storage and discharge, integration of a battery management system (BMS), cell balancing and protection, and more.

From chips to systems, we offer the essential chips and components for robust, safe, and efficient battery systems for your needs.

High-Power USB-C Portable Power System Application Overview

Monitoring & Measurement

Monitoring & Measurement

Measuring and monitoring power systems is critical for accurate voltage/current measurement, performance,  and system-level visibility for safety and optimization.

We enable system visibility into the health, performance, and efficiency of your power systems- from products like battery fuel gauges, current sense amplifiers, and more- while also offering a breadth of resources from starter kits all the way up to reference designs for quick deployment and system integration.

SLG47011 AnalogPAK Power Meter Demo Board Lab Demonstration

Design & Development Resources

Explore system-level reference designs, evaluation kits, and other resources to get started on your design journey for power adapters and chargers.

Icon showing circuitry illustration within a square, indicating electronic components of a circuit board.
Evaluation Boards
Explore ready‑to‑use evaluation boards designed to accelerate development and testing of smart charging and USB‑C power systems.
Icon showing cog-wheel within a square illustration, indicating configuration settings and access to controls.
PowerCompass™ Multi-Rail Design Tool
Plan and visualize power architecture with support in identifying parts, setting up multiple power rails, and performing high-level system analysis
USB‑C PD 3.2 EPR: A Full System Design Solution, Wall to Battery
Explore an interactive online lab demonstrating a full 240W (48V, 5A) USB‑C PD 3.2 EPR power path, featuring ZVS architecture for high efficiency, high power density, and compliant DC‑to‑USB‑C delivery.

Documentation

Videos & Training