Renesas RTKA223011DE0010BU

Overview

RTKA223011DE0010BU from Renesas Electronics is an evaluation board for the RAA223011 700V AC/DC buck regulator IC in 8-lead SOIC package, designed to demonstrate non-isolated universal-input (85–265VAC) to 12VDC/300mA conversion with <10mW standby power and EN55022/CISPR 22 EMI pre-compliance.

For engineers reviewing the RTKA223011DE0010BU datasheet, RTKA223011DE0010BU application, RTKA223011DE0010BU pinout, or RTKA223011DE0010BU equivalent, this board serves as a validated reference design for low-cost, single-sided AC/DC power supplies targeting industrial control, smart home sensors, and IoT edge nodes requiring high efficiency at light load and silent operation.

Technical Context

The RTKA223011DE0010BU implements a high-side floating-switch buck topology operating up to 33kHz switching frequency, using half-wave rectification with fusible resistor FR for input overcurrent and surge protection. Its input filter (C1/L1/C2) suppresses conducted EMI, while output stage (L2/D2/COUT) delivers regulated 12VDC.

Feedback is provided via resistive divider (RFB1/RFB2) and capacitive network (CFB1/CFB2); VCC biasing uses D4/R2 for startup efficiency improvement. The board operates across –45°C to +65°C ambient and achieves >73% efficiency at full 3.6W load with ±2.4% load regulation.

Key Specifications

Availability

RTKA223011DE0010BU is available at Aetrix Electronics and suitable for industrial control panels, smart home sensor hubs, and IoT edge node power supplies requiring stable component supply, rapid prototyping validation, and EMI-ready reference designs.

Supply support for RTKA223011DE0010BU includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.

The RTKA223011DE0010BU belongs to Renesas' AC/DC evaluation board product line, engineered to accelerate development of cost-sensitive, high-efficiency offline power supplies for resource-constrained embedded systems.

FAQ

What is the primary function of the RTKA223011DE0010BU?

The RTKA223011DE0010BU is an evaluation board-not an IC-that demonstrates the RAA223011 buck regulator IC in action. It converts universal AC input (85–265VAC) to a regulated 12VDC output at up to 300mA, featuring built-in protections and EMI pre-compliance. Engineers use the RTKA223011DE0010BU to validate performance before integrating the RAA223011 into final designs.

Does the RTKA223011DE0010BU include the RAA223011 IC?

Yes, the RTKA223011DE0010BU includes the RAA223011 IC in an 8-lead SOIC package (part number RAA2230114GSP#JA0), mounted on the board. This IC integrates the high-voltage switch, controller, and protection circuitry required for the buck converter topology implemented on the RTKA223011DE0010BU.

Can the RTKA223011DE0010BU be used for full production?

The RTKA223011DE0010BU is intended for evaluation and reference only-not for volume production. Its single-sided PCB layout, discrete component selection, and test-point placement prioritize debug and validation. For production, designers must implement their own layout based on the RAA223011 datasheet guidelines and system-specific requirements.

What protection features are implemented on the RTKA223011DE0010BU?

The RTKA223011DE0010BU incorporates overcurrent, short-circuit, input brownout, and over-temperature protection-enabled by the RAA223011 IC. Additional hardware-level safeguards include fusible resistor FR for input overcurrent limiting and surge absorption, plus thermal design supporting operation up to +65°C ambient.

Is the RTKA223011DE0010BU compliant with safety standards?

The RTKA223011DE0010BU is pre-compliant with EN55022/CISPR 22 Class B for conducted and radiated emissions but is not certified to safety standards (e.g., UL/IEC 62368-1). It lacks reinforced insulation, creepage/clearance validation, or agency markings-so it must be integrated into a certified end-product enclosure with appropriate isolation and safety margins.