ISL6228/HI/LO/EVAL3Z

High-Performance Dual-Output Buck Controller Evaluation Boards

Description

The ISL6228EVAL3Z, ISL6228HIEVAL3Z, ISL6228LOEVAL3Z evaluation boards demonstrate the performance of the ISL6228 dual-channel PWM controller. The ISL6228 features Intersil's Robust Ripple Regulator (R3) technology. Channel-1 output voltage is 1.5V or 1.8V, pending the state of switch S5. Channel-2 output voltage is 1.8V. Each channel has an on-board dynamic-load generator included for evaluating the transient-load response.

ISL6228EVAL3Z applies a 300µs pulse of 4.5A load across VO1 and GND, and it applies a 300µs pulse of 5A load across VO2 and GND. ISL6228HIEVAL3Z applies a 300µs pulse of 20A load across VO1 and GND, and it also applies a 300µs pulse of 20A load across VO2 and GND. ISL6228LOEVAL3Z applies a 300µs pulse of 8A load across VO1 and GND, and also a 300µs pulse of 8A load across VO2 and GND.

ISL6228 Features

  • High performance R3 technology
  • Fast transient response
  • ±1% regulation accuracy: -10°C to +100°C
  • Individual power stage input rail for each channel
  • Wide input voltage range: +3.3V to +25V
  • Output voltage range: +0.6V to +5V
  • Diode emulation mode for increased light load efficiency
  • Programmable PWM frequency: 200kHz to 600kHz
  • Pre-biased output start-up capability
  • Integrated MOSFET drivers and bootstrap diode
  • Internal digital soft-start
  • Power good monitor
  • Fault protection
    • Undervoltage protection
    • Soft crowbar overvoltage protection
    • Inductor DCR overcurrent protection
    • Over-temperature protection
    • Fault identification by PGOOD pull-down resistance
  • Pb-free available (RoHS compliant)

Applications

  • General purpose switching buck regulators
  • PCI express graphical processing unit
  • Auxiliary power rail
  • VRM
  • Network adapter

ISL6228EVAL3Z Buck Controller Eval Board

ISL6228EVAL3Z Buck Controller Eval Board

Related Products

ISL6228

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