ZL8801-xPH-DEMO1Z

2 or 4 Phase PMBus™ ChargeMode™ Control DC/DC Digital Controller Demonstration Boards

Description

The ZL8801 is a dual-phase digital DC/DC controller optimized for current sharing. As many as 4 ZL8801’s can be operated in parallel to provide even phase counts between 2 and 8 phases. The ZL8801 incorporates compensation-free ChargeMode™ control to achieve single-cycle transient response. ZL8801 can also be used with the ISL99140 40A DrMOS Power Module to simplify layout and allow for extra design flexibility.

The ZL8801-2PH-DEMO1Z demonstration board is a 6-layer board demonstrating a 2-phase 80A synchronous buck converter. Sequencing, margining, plus other features can be evaluated using this demonstration board.

The ZL8801-4PH-DEMO1Z demonstration board is a 6-layer board configured as a 4-phase 160A synchronous buck converter. Sequencing, margining, fault spreading and other features can be evaluated using this board.

A USB to PMBus™ adapter module is used to connect the demonstration board to a host PC running Microsoft Windows.

Key Features

ZL8801-2PH-DEMO1Z

  • 2-phase 80A synchronous buck converter with compensation-free ChargeMode control
  • Designed to be easy to use and modify. Optimized for small circuit footprint and dynamic response
  • Configurable through PMBus
  • VIN range of 4.5V to 14V, Vout adjustable from 0.54 to 2.0V (Device can be adjusted to 5.5V with 6.3V output capacitors)
  • Enable switch and power-good indicator

ZL8801-4PH-DEMO1Z

  • 160A 4-phase synchronous buck converter with ChargeMode™ control
  • On-the-fly Vout control
  • Configurable with PMBus
  • VIN range 4.5V to 14V
  • VOUT range 0.54V to 3.6V
  • I2C/SMBus interface, PMBus compatible
  • Output voltage and current protection

Applications

  • Servers/storage equipment
  • Telecom/datacom equipment
  • Power supplies (memory, DSP, ASIC, FPGA)

ZL8800-1PH-DEMO1Z DC/DC Digital Controller Demo Board

ZL8800-1PH-DEMO1Z DC/DC Digital Controller Demo Board

Related Products

ZL8801

ISL99140

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