Renesas RTKA223011DE0000BU

Overview

RTKA223011DE0000BU from Renesas Electronics is an evaluation board for the RAA223011 700V AC/DC buck regulator IC in TSOT23-5 package, designed to demonstrate low-cost, non-isolated AC/DC conversion from universal 85–265VAC input to regulated 12VDC output at up to 300mA. It implements high-side floating-switch topology with 30kHz switching frequency and integrates overcurrent, short-circuit, brownout, and over-temperature protection.

For engineers reviewing the RTKA223011DE0000BU datasheet, RTKA223011DE0000BU application, RTKA223011DE0000BU pinout, or RTKA223011DE0000BU equivalent, this board enables rapid validation of high-voltage buck converter performance under EN55022/CISPR 22 EMI compliance, sub-10mW standby power, and single-sided PCB implementation with half-wave rectification.

Technical Context

The RTKA223011DE0000BU implements a high-side float-switching buck topology using the RAA223011 IC, operating at up to 30kHz with universal AC input rectified via D1/D7 half-wave configuration. Input filtering uses C1/L1/C2; output stage comprises L2/D2/COUT; feedback network includes RFB1/RFB2/CFB1/CFB2.

Protection features include built-in overcurrent, short-circuit, input brownout, and over-temperature detection. The board achieves <10mW no-load power (7mW @120VAC, 9.6mW @230VAC) and meets conducted/radiated EMI requirements per EN55022/CISPR 22 without external shielding.

Key Specifications

Availability

RTKA223011DE0000BU is available at Aetrix Electronics and suitable for AC/DC auxiliary power supply design, smart home device standby power, and IoT sensor node power conversion requiring stable component supply and fast prototyping capability.

Supply support for RTKA223011DE0000BU 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 RTKA223011DE0000BU belongs to Renesas' AC/DC evaluation platform family, engineered to accelerate development of compact, high-efficiency, low-standby-power offline buck converters targeting cost-sensitive consumer and industrial power supplies.

FAQ

What is the primary function of the RTKA223011DE0000BU?

The RTKA223011DE0000BU is an evaluation board-not a standalone IC-that demonstrates the RAA223011 700V buck regulator IC in action. It converts universal AC input (85–265VAC) to regulated 12VDC at up to 300mA, featuring integrated protections and pre-compliance with EN55022 EMI standards. RTKA223011DE0000BU supports rapid validation of system-level performance before custom design.

Does the RTKA223011DE0000BU include the RAA223011 IC?

Yes, the RTKA223011DE0000BU includes one RAA223011 IC in a 5-lead TSOT23 package (part number RAA2230114GP3#NA0). This IC provides the core high-voltage buck regulation, control logic, and protection functions. RTKA223011DE0000BU serves as a complete, tested reference implementation with all necessary passive components mounted.

Can the RTKA223011DE0000BU be used for full production?

No-RTKA223011DE0000BU is an evaluation board intended for design verification and functional testing only. Its single-sided layout, through-hole inductors, and non-optimized thermal design are not rated for long-term production use. For volume deployment, engineers must implement the RAA223011 IC on a custom PCB following Renesas' layout guidelines and thermal recommendations.

What input rectification method does the RTKA223011DE0000BU use?

The RTKA223011DE0000BU uses a low-cost single-diode half-wave rectifier (D1 and D7) instead of a full-bridge. This reduces BOM count and cost while maintaining acceptable efficiency and EMI performance. A footprint for optional full-bridge rectification is provided but not populated on the standard board.

How is EMI performance achieved on the RTKA223011DE0000BU?

The RTKA223011DE0000BU achieves EN55022/CISPR 22 pre-compliance through optimized component placement, input LC filter (C1/L1/C2), controlled switching frequency (≤30kHz), and inherent low-noise operation of the RAA223011 IC. No external EMI filters, ferrites, or shielding are required-enabling compact, low-cost designs. RTKA223011DE0000BU has been validated for both conducted and radiated emissions.