Triple, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller Evaluation Boards


The ISL9440xEVAL1Z evaluation boards are used to evaluate the performance of the ISL9440A, ISL9440B and ISL9440C quad-output synchronous buck controllers.

The ISL9440A, ISL9440B and ISL9440C are quad-output controllers that integrate three PWM synchronous buck controllers and one low-dropout linear regulator controller. The ISL9440A offers internal soft-start, independent enable functions and integrates UV/OV/OC/OT protections. While the ISL9440B and ISL9440C offer programmable soft-start, independent enable functions and integrate OV/OC/OT protections. All three devices offer current mode control architecture and an internal compensation network, keeping peripheral component count minimal.


  • DC/DC, step-down with LDO
  • Current - output: 6A, 6A, 4A, 800mA
  • Switching frequency (ISL9440A and ISL9440C): 600kHz
  • Switching frequency (ISL9440B): 300kHz
  • Soft-start timing (ISL9440A): 1.7ms
  • Soft-start timing (ISL9440B and ISL9440C): Programmable
  • Voltage - input: 6V to 16V


  • Satellite and cable set-top boxes
  • Cable modems
  • VoX gateway devices
  • NAS/SAN devices
  • ATX power supply (ISL9440B and ISL9440C)

ISL9440AEVAL1Z Buck PWM and Single Linear Controller Eval Board

ISL9440AEVAL1Z Evaluation Board




可订购部件编号 生产状态 厂商 建议单工具价格
描述 分销商库存 分销商 分销商采购 Buy Direct
ISL9440CEVAL1Z Mass Production Renesas $67.32 1 0 联系分销商 -
ISL9440BEVAL1Z Mass Production Renesas $99.00 1 0 联系分销商 -
ISL9440AEVAL1Z Mass Production Renesas $106.70 1 3 Digi-Key -

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Disclaimer: THIS MATERIAL IS PROVIDED “AS-IS” FOR EVALUATION PURPOSES ONLY. RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (collectively, “Renesas”) DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Renesas provides evaluation platforms and design proposals to help our customers to develop products. However, factors beyond Renesas' control, including without limitation, component variations, temperature changes and PCB layout, could significantly affect the product performance. It is the user’s responsibility to verify the actual circuit performance.