ISL6228/HI/LO/EVAL3Z

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 V_O1 and GND, and it applies a 300µs pulse of 5A load across V_O2 and GND. ISL6228HIEVAL3Z applies a 300µs pulse of 20A load across V_O1 and GND, and it also applies a 300µs pulse of 20A load across V_O2 and GND. ISL6228LOEVAL3Z applies a 300µs pulse of 8A load across V_O1 and GND, and also a 300µs pulse of 8A load across V_O2 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

Related Products

ISL6228