Renesas RTKA212832DR0000BU

Overview

RTKA212832DR0000BU from Renesas Electronics is a demonstration board designed to evaluate the RAA212832 triple-output power management IC - featuring a 72V-input synchronous buck regulator (12V/6V output, 500mA), a 5V/100mA LDO, and a 3.3V/50mA LDO - optimized for electric-bike control board power systems with minimal external components and fixed-frequency operation at 350kHz.

For engineers reviewing the RTKA212832DR0000BU datasheet, RTKA212832DR0000BU pinout, RTKA212832DR0000BU application, or RTKA212832DR0000BU equivalent, this board enables rapid validation of wide-input (14–72V) DC-DC conversion, standby-mode voltage scaling (12V ↔ 6V), and dual-LDO rail sequencing in compact embedded power designs.

Technical Context

The RTKA212832DR0000BU implements a functionally optimized layout of the RAA212832 IC in PSOP-8E package, supporting peak current-mode control for fast transient response and cycle-by-cycle overcurrent protection on the buck stage. It integrates dedicated input filtering, BST capacitor routing, and thermal vias under the IC for effective dissipation.

All three regulated outputs are internally fixed: buck at 12V (or 6V in STBY mode), LDO_5V at 5V, and LDO_3V3 at 3.3V - eliminating external feedback resistors. The board supports simultaneous operation of all rails, with independent load capability up to 0.5A (buck), 0.1A (5V LDO), and 0.05A (3.3V LDO).

Key Specifications

Availability

RTKA212832DR0000BU is available at Aetrix Electronics and suitable for e-bike controller development, industrial motor drive auxiliary power supply validation, and embedded system power architecture prototyping requiring stable component supply and reference-grade performance data.

Supply support for RTKA212832DR0000BU 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 RTKA212832DR0000BU belongs to Renesas' power management demonstration platform series, developed specifically to accelerate adoption of highly integrated, wide-input PMICs in space-constrained electric mobility and industrial control systems.

FAQ

What is the primary purpose of the RTKA212832DR0000BU?

The RTKA212832DR0000BU is a Renesas-provided demonstration board intended solely to evaluate the electrical performance, thermal behavior, and functional operation of the RAA212832 triple-output power management IC. It is not a production-ready module but a validated reference design enabling engineers to verify buck regulation, LDO stability, standby mode switching, and load transient response before integrating the RAA212832 into their own PCB layouts.

Does the RTKA212832DR0000BU support both 12V and 6V buck output modes?

Yes, the RTKA212832DR0000BU supports both output voltages via the STBY pin: when STBY is pulled low, the buck regulator delivers 12V; when STBY is pulled high, it switches to 6V output. This dual-voltage capability is implemented directly by the RAA212832 IC and verified on the RTKA212832DR0000BU board using test points TP1–TP6 and configured jumpers per the manual's setup instructions.

Can the RTKA212832DR0000BU power external loads on all three rails simultaneously?

Yes, the RTKA212832DR0000BU is designed to deliver full rated current on all three outputs concurrently: up to 0.5A on the buck rail (VOUT), 100mA on LDO_5V (J2 pin 1), and 50mA on LDO_3V3 (J2 pin 2). Performance graphs on pages 8–12 of the manual confirm stable regulation and ripple under combined loading, including startup waveforms with all rails active.

What package does the RAA212832 IC use on the RTKA212832DR0000BU board?

The RAA212832 IC on the RTKA212832DR0000BU board is mounted in an 8-pin PSOP-8E package (lead pitch 1.27mm, body size 4.9 × 6.0 mm), as confirmed in the Bill of Materials (page 7) and schematic (Figure 5). The board uses thermal vias beneath the exposed pad to enhance heat transfer to the internal ground plane - critical for sustaining 0.5A continuous buck output.

Is the RTKA212832DR0000BU compatible with standard 12V/24V/48V input sources?

Yes, the RTKA212832DR0000BU accepts input voltages from 14V to 72V, covering common e-bike battery packs (e.g., 36V, 48V nominal), industrial 24V/48V systems, and automotive 12V/24V variants with transient headroom. Its input terminals (J1 and J6) are rated for 72V DC, and efficiency curves (pages 8–11) show consistent performance across 16V–72V inputs at both 6V and 12V buck output settings.