Dual, 550kHz, 2-Phase Synchronous Regulators The LTC3728LZEUH#PBF is a product from **Linear Technology** (now part of Analog Devices). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Manufacturer:**
- **LINEAR** (Linear Technology Corporation, acquired by Analog Devices)
### **Specifications:**
- **Part Number:** LTC3728LZEUH#PBF
- **Type:** Synchronous Step-Down Switching Controller
- **Topology:** Buck (Step-Down)
- **Input Voltage Range:** 4.5V to 36V
- **Output Voltage Range:** Adjustable (down to 0.8V)
- **Output Current:** Up to 20A (with external MOSFETs)
- **Switching Frequency:** Adjustable (100kHz to 600kHz)
- **Efficiency:** Up to 95%
- **Operating Temperature Range:** -40°C to 125°C
- **Package:** 32-Lead QFN (5mm x 5mm)
### **Descriptions:**
- The LTC3728LZEUH#PBF is a high-efficiency, dual-phase synchronous step-down switching controller designed for high-current applications.
- It uses a constant-frequency current-mode architecture for precise regulation.
- The dual-phase operation reduces input and output ripple current, improving efficiency and thermal performance.
- It includes features like adjustable soft-start, overcurrent protection, and thermal shutdown.
### **Features:**
- **Dual-Phase Operation:** Reduces input/output ripple and component stress.
- **Adjustable Frequency:** Allows optimization for efficiency and component size.
- **Current-Mode Control:** Ensures fast transient response and stable operation.
- **Wide Input Range:** Supports 4.5V to 36V input.
- **Low Dropout Operation:** Maximizes efficiency at low output voltages.
- **Programmable Soft-Start:** Prevents inrush current at startup.
- **Overcurrent & Thermal Protection:** Enhances system reliability.
This information is based solely on the manufacturer's datasheet and technical documentation.
