ACPI Regulator/Controller for Dual Channel DDR Memory Systems The ISL6548ACRZA-T is a dual synchronous buck PWM controller manufactured by **INTERSIL** (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on factual data:
### **Specifications:**
- **Input Voltage Range:** 4.5V to 25V
- **Output Voltage Range:** Adjustable down to 0.8V
- **Switching Frequency:** Adjustable from 100kHz to 1MHz
- **Output Current:** Supports high-current applications (controller requires external MOSFETs)
- **Number of Channels:** Dual (two independent PWM controllers)
- **Duty Cycle Range:** 0% to 100%
- **Efficiency:** High efficiency due to synchronous rectification
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 28-Lead QFN (5mm x 5mm)
### **Descriptions:**
- Designed for **high-efficiency DC/DC conversion** in power supply applications.
- Features **voltage-mode control** with adjustable switching frequency.
- Includes **soft-start, overcurrent protection, and undervoltage lockout (UVLO)** for robust operation.
- Optimized for **point-of-load (POL) regulation** in computing, networking, and industrial systems.
### **Features:**
- **Dual Independent PWM Controllers** for flexible power supply design.
- **Adjustable Frequency (100kHz–1MHz)** to optimize efficiency and component size.
- **Synchronous Rectification** for improved efficiency.
- **Programmable Soft-Start** to limit inrush current.
- **Overcurrent Protection (OCP)** with hiccup mode.
- **Undervoltage Lockout (UVLO)** for safe operation.
- **Power-Good Output** for system monitoring.
- **Low Shutdown Current** (<10µA) for power-saving modes.
This information is based on the manufacturer's datasheet and technical documentation. For detailed application notes, refer to the official datasheet from **Renesas Electronics (formerly Intersil)**.
