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 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
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