Renesas RTKA211450DE0010BU

Overview

RTKA211450DE0010BU from Renesas Electronics is an evaluation board designed to validate the RAA211450 HTSSOP-packaged synchronous step-down DC/DC regulator. It supports 4.5V–42V input, delivers 3.3V at up to 5A output, and enables configurable switching frequency and feedback voltage via external resistors. It serves as a reference for layout, thermal design, and performance validation in industrial power supply applications.

For engineers reviewing the RTKA211450DE0010BU datasheet, RTKA211450DE0010BU pinout, RTKA211450DE0010BU application, or RTKA211450DE0010BU equivalent, this board provides verified test conditions, full schematic documentation, bill-of-materials traceability, and measured waveforms for efficiency, load regulation, ripple, and startup behavior under real operating conditions.

Technical Context

The RTKA211450DE0010BU implements the RAA211450 (HTSSOP-16) IC in a fixed 3.3V output configuration using R9 = 62kΩ and R10 = 20kΩ per Equation 1. It integrates internal high-side (90mΩ) and low-side (45mΩ) MOSFETs and supports programmable switching frequency via the FS pin.

Input is applied across T1 (VIN) and T2 (GND); output is delivered at T3 (VOUT) and T4 (GND). JP1 shorts VIN to EN for automatic enable, and phase-node waveforms are accessible at J1. The board uses a 3.3µH power inductor (Wurth 74439344033) and three 47µF output capacitors (Murata GRM32ER71A476KE15L).

Key Specifications

Availability

RTKA211450DE0010BU is available at Aetrix Electronics and suitable for industrial power supply validation, embedded system power architecture prototyping, and automotive-grade DC/DC regulator qualification requiring stable component supply and documented reference performance.

Supply support for RTKA211450DE0010BU 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 manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog power devices, and embedded solutions for industrial, automotive, and infrastructure markets.

The RTKA211450DE0010BU belongs to Renesas' RAA211450 evaluation platform family, engineered to accelerate adoption of high-efficiency, wide-input synchronous buck regulators in space-constrained and thermally demanding applications.

FAQ

What is the primary function of the RTKA211450DE0010BU evaluation board?

The RTKA211450DE0010BU evaluation board is designed exclusively to evaluate the RAA211450GSP#HA0 synchronous step-down DC/DC regulator in HTSSOP-16 package. It provides a fully assembled, tested platform for measuring efficiency, load/line regulation, ripple, transient response, and thermal performance under real-world input conditions from 4.5V to 42V. The board supports quick validation without custom PCB development.

Does the RTKA211450DE0010BU support adjustable output voltage?

Yes, the RTKA211450DE0010BU supports adjustable output voltage via the FB pin. Though configured for 3.3V by default using R9 = 62kΩ and R10 = 20kΩ, users can recalculate and replace these resistors per Equation 1 in the manual to set other output voltages. The RAA211450's feedback reference is 0.8V, enabling precise VOUT tuning across its operational range.

What input and output connectors are used on the RTKA211450DE0010BU?

The RTKA211450DE0010BU uses Keystone 1502-1 double turret terminals (T1–T4) for both input (VIN/GND) and output (VOUT/GND) connections. These through-hole, tin-plated brass terminals accept wire sizes up to 12 AWG and provide robust mechanical and electrical contact for bench testing and long-duration operation at up to 5A output current.

Can the RTKA211450DE0010BU be used to evaluate switching frequency programming?

Yes, the RTKA211450DE0010BU includes the FS pin of the RAA211450 exposed and accessible, allowing direct connection to external logic or resistor networks to program switching frequency. The board's schematic (Figure 4) shows FS routed to test point TP4, enabling frequency sweep verification and optimization for EMI or efficiency trade-offs without hardware modification.

Is thermal performance data available for the RTKA211450DE0010BU?

While the RTKA211450DE0010BU Evaluation Board Manual does not include explicit thermal imaging or junction temperature plots, it provides measured efficiency curves (Figure 9), load regulation (Figure 10), and ripple waveforms (Figures 11–12) across 5A load and multiple input voltages. These data allow indirect thermal assessment, and the board's copper pour and EPAD grounding align with RAA211450 Datasheet layout guidelines for optimal thermal dissipation.