ISL6269 is Intersil's Robust Ripple Regulator (R3) technology that delivers truly superior dynamic response to input voltage and output load transients. Integrated MOSFET drivers, 5V LDO and bootstrap diode result in fewer components and smaller implementation area.
The ISL6269 is a single‑phase synchronous‑buck PWM controller with Intersil's Robust Ripple Regulator technology, offering fast transient response and integrated MOSFET drivers, a 5 V LDO, and a digital soft‑start. It is intended for notebook power supplies, auxiliary rails, VRMs, and network adapters.
Key features include a wide input voltage range (7 V‑25 V), programmable PWM frequency, +1 % regulation accuracy over a broad temperature range, diode‑emulation mode for light‑load efficiency, and extensive fault protection with PGOOD status indication.
| Input Voltage Range | 7.0 V to 25.0 V |
|---|---|
| Output Voltage Range | 0.6 V to 3.3 V |
| PWM Frequency Range | 200 kHz to 6 MHz |
| Regulation Accuracy | ±1 % over -10 °C to +100 °C |
| Digital Soft‑Start Time | 1.5 ms |
| Output Load Range | 0 A to 25 A |
| Junction Temperature Range | -55 °C to +150 °C |
The device operates from 7.0 V up to 25.0 V.
The soft‑start duration is approximately 1.5 ms.
Set the FCCM pin low to activate diode‑emulation mode for improved light‑load efficiency.