Renesas RTKA808015DE0000BU

Overview

RTKA808015DE0000BU from Renesas Electronics is an evaluation board for the RAA808015A 5A synchronous buck regulator, operating from 2.7V to 5.5V input and delivering a preset 1.2V output. It integrates internal 20mΩ/16mΩ MOSFETs, supports 1.8MHz switching, and enables voltage adjustment from 0.6V to 3.3V via external resistors - used for rapid validation of power delivery in compact embedded systems.

For engineers reviewing the RTKA808015DE0000BU datasheet, RTKA808015DE0000BU pinout, RTKA808015DE0000BU application, or RTKA808015DE0000BU equivalent, this board provides hands-on characterization of efficiency (>82% at full load), load regulation (±0.5%), thermal behavior (–40°C to +85°C), and transient response under real-world 5A step-load conditions.

Technical Context

The RTKA808015DE0000BU evaluation board implements the RAA808015A IC in a QFN 2×2.5 mm package with 0.8 mm max height, supporting fixed 1.2V output or adjustable operation via FB resistor divider. It features cycle-by-cycle overcurrent protection, hiccup-mode SCP/OCP, UVLO, and EN-controlled sequencing.

Designed for high-density DC/DC conversion, the board achieves 1.516 cm² footprint and >94% peak efficiency at light loads. Its 1.8MHz switching frequency allows use of small 470nH inductors and low-ESR ceramic output capacitors, minimizing solution size while maintaining stable regulation across –40°C to +85°C ambient.

Key Specifications

Availability

RTKA808015DE0000BU is available at Aetrix Electronics and suitable for power supply validation, embedded system bring-up, and DC/DC converter qualification requiring stable component supply, traceable sourcing, and documented performance benchmarks.

Supply support for RTKA808015DE0000BU 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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RTKA808015DE0000BU belongs to Renesas' power evaluation platform family, designed to accelerate adoption of their high-efficiency, low-BOM-count buck regulators in space- and thermally-sensitive applications.

FAQ

What is the RTKA808015DE0000BU used for?

The RTKA808015DE0000BU is an evaluation board for the RAA808015A 5A synchronous buck regulator. It enables engineers to validate performance-including efficiency, transient response, thermal behavior, and voltage adjustability-under real operating conditions. The board supports input voltages from 2.7V to 5.5V and delivers up to 5A at 1.2V (adjustable to 0.6V–3.3V), making it ideal for prototyping power supplies in embedded and portable electronics. RTKA808015DE0000BU is not a standalone IC but a fully assembled, tested reference design.

Does the RTKA808015DE0000BU include the RAA808015A IC?

Yes, the RTKA808015DE0000BU evaluation board integrates one RAA808015A IC (U1) in a QFN 2×2.5 mm package. This IC provides all core regulation functions including internal high- and low-side MOSFETs (20mΩ/16mΩ), 1.8MHz PWM control, soft-start, and comprehensive protection features. The board also includes matching passive components-inductor, input/output capacitors, and feedback resistors-optimized per Renesas' recommended layout and BOM.

Can the output voltage of the RTKA808015DE0000BU be changed from 1.2V?

Yes, the RTKA808015DE0000BU output is preset to 1.2V but is fully adjustable from 0.6V to 3.3V by modifying the feedback resistor divider (R1 and R2). Table 1 in the evaluation board manual specifies exact resistor values for each target voltage. For example, changing R2 from 200kΩ to 100kΩ sets VOUT to 1.8V. This flexibility allows direct evaluation of the RAA808015A's regulation accuracy and stability across multiple rail requirements using the same board.

What protection features are implemented on the RTKA808015DE0000BU?

The RTKA808015DE0000BU inherits the full protection suite of the RAA808015A IC: cycle-by-cycle overcurrent protection (OCP), short-circuit protection (SCP) with hiccup mode, input undervoltage lockout (UVLO), and over-temperature protection. These are hardware-enforced and active during evaluation-no firmware or configuration required. The board also includes EN pin access for controlled power sequencing and PG (power good) signal monitoring, enabling integration into complex multi-rail systems.

Is the RTKA808015DE0000BU compatible with standard test equipment?

Yes, the RTKA808015DE0000BU is designed for immediate use with common lab instruments: a 0–6V/20A DC power supply connects to VIN (P4) and GND (P5); electronic loads up to 15A interface via VO+ and VO− terminals; and oscilloscope probes attach to dedicated test points for VIN, VOUT, SW, and PG signals. The board's 2.54mm header (J1) and turret terminals (EN, PG, etc.) ensure compatibility with standard banana jacks, spring clips, and probe holders without adapters.