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 ChargeModeTM 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 PowerNavigatorTM evaluation software from a PC running Microsoft Windows. The RTKA2108702H00000BU can operate in pin-strap mode without needing the ZLUSBEVAL3Z adapter or PMBus communication.

PowerCompass

The PowerCompassTM tool helps you start your design in the right direction, giving you tools to find Renesas parts that match your requirements, set up multiple rails if needed, perform high-level system analysis and generate reference design files.

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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

Applications

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

Product Options

Orderable Part ID Part Status Buy Sample
RTKA2108702H00000BU
Active
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
RAA210850 Datasheet Datasheet PDF 2.41 MB
RAA210870 Datasheet Datasheet PDF 2.63 MB
RAA210833 Datasheet Datasheet PDF 2.69 MB
RAA210925 Datasheet Datasheet PDF 2.93 MB
User Guides & Manuals
RTKA2108702H00000BU User Guide Manual PDF 1.64 MB
PowerNavigator User Guide for POL Manual PDF 4.68 MB
RTKA2109252H00000BU User Guide Manual PDF 2.02 MB
RTKA2108332H00000BU User Guide Manual PDF 1.35 MB
RTKA2108502H00000BU User Guide Manual PDF 1.79 MB
Production Configuration Utility User Guide Manual PDF 714 KB
Other
RTKA2109252H00000BU Design Files Design File ZIP 1.49 MB
RTKA2108702H00000BU Design Files Design File ZIP 2.44 MB
RTKA2108502H00000BU Design Files Design File ZIP 2.23 MB
RTKA2108332H00000BU Design Files Design File ZIP 1005 KB
PowerNavigator™ Software v5.4.139 Library ZIP 96.49 MB
Production Configuration Utility v5.4.139 Library ZIP 120.25 MB

News & Additional Resources