RTKA2108702H00000BU Evaluation Board

Pin-Strap Configurable 70A Step-Down PMBus-Compliant DC/DC Power Supply Module

The RAA210870 is a pin-strap configurable 70A step-down PMBus-compliant DC/DC power supply module that integrates a digital PWM controller, synchronous MOSFETs, power inductor, and passive components. Only input and output capacitors are needed to finish the design. Because of its thermally enhanced HDA packaging technology, the module can deliver up to 70A of continuous output current without the need for airflow or additional heat sinking. The RAA210870 uses ChargeMode™ control (ASCR) architecture, which responds to a transient load within a single switching cycle.

The RTKA2108702H00000BU evaluation board is a 4.7in x 4.8in 8-layer FR4 board with 2oz. copper on all layers. This evaluation board comes with placeholders for pin-strap resistor population to adjust output voltage, switching frequency, soft-start/stop timing, input UVLO threshold, ASCR gain and residual parameters, and device PMBus address. Fault limits can be easily programmed or changed using a PMBus-compliant serial bus interface.

The optional ZLUSBEVAL3Z (USB to PMBus adapter) is provided with this evaluation board, which connects the evaluation board to a PC to activate the PMBus communication interface. The PMBus command set is accessed by using the PowerNavigator™ evaluation software from a PC running Microsoft Windows. The RTKA2108702H00000BU can operate in pin-strap mode without needing the ZLUSBEVAL3Z adapter or PMBus communication.

Key Features

  • VIN range of 4.5V to 14V, VOUT adjustable from 0.6V to 2.5V
  • Programmable VOUT, input and output UVP/OVP, OTP/UTP, soft-start/stop, and external synchronization
  • Monitor: VIN, VOUT, IOUT, temperature, duty cycle, switching frequency, and faults
  • ChargeMode control tunable with PMBus
  • Mechanical switch for enable and power-good LED indicator


  • Server, telecom, storage, and datacom
  • Industrial/ATE and networking equipment
  • General purpose power for ASIC, FPGA, DSP, and memory

PowerNavigator User Guide for POL
Setup and configure a point of load (POL) digital power device using Intersil's PowerNavigator GUI.
PDF 2018年4月10日 4.68 MB
Production Configuration Utility User Guide
User guide for production configuration utility software
PDF 2016年10月29日 714 KB
RAA210870 Datasheet
Pin-Configurable 70A DC/DC Power Module with PMBus Interface
PDF 2018年11月3日 2.63 MB
RTKA2108702H00000BU User Guide
RTKA2108702H00000BU Evaluation Board User Guide
PDF 2018年9月14日 1.64 MB

PowerNavigator Software v5.4.98
Use the PowerNavigator GUI to setup and configure supported digital power devices.
HTML 2018年7月18日 93.4 MB
Production Configuration Utility v5.4.98
Production Configuration Utility software for quick loading and verification of config files into Intersil digital power controller/modules
ZIP 2018年7月18日 99.5 MB
RTKA2108702H00000BU Design Files
RTKA2108702H00000BU Design Files
ZIP 2018年10月9日 2.44 MB

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