Dual, 550kHz, 2-Phase Synchronous Regulators The LTC3728LCUH#TRPBF is a product from **LINEAR** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual data:
### **Specifications:**
- **Manufacturer:** LINEAR (Analog Devices)
- **Part Number:** LTC3728LCUH#TRPBF
- **Package:** 32-Lead QFN (5mm x 5mm)
- **Type:** Dual, 2-Phase Synchronous Step-Down Switching Controller
- **Input Voltage Range:** 4.5V to 36V
- **Output Voltage Range:** Adjustable down to 0.8V
- **Switching Frequency:** Adjustable (up to 600kHz per phase)
- **Operating Temperature Range:** -40°C to +125°C
- **Output Current:** Supports high-current applications (external MOSFETs required)
### **Descriptions:**
- The LTC3728LCUH#TRPBF is a **dual, 2-phase synchronous step-down switching controller** designed for high-efficiency power conversion.
- It operates with **two interleaved phases**, reducing input ripple current and output voltage ripple.
- The device is **optimized for high-power applications** and supports **PolyPhase® operation** for scalability.
- It includes **adaptive gate drive timing** for efficiency optimization and **current-mode control** for fast transient response.
### **Features:**
- **Dual-Phase Operation:** Reduces input/output capacitance requirements.
- **Wide Input Voltage Range:** 4.5V to 36V.
- **Adjustable Frequency:** Up to 600kHz per phase.
- **Precision Reference:** ±1% output voltage accuracy.
- **Current-Mode Control:** Ensures stable operation.
- **Power Good Output:** Monitors output voltage status.
- **Programmable Soft-Start:** Prevents inrush current.
- **Thermal Shutdown Protection:** Safeguards against overheating.
- **Low Shutdown Current:** <1µA.
This information is strictly based on the manufacturer's datasheet and technical documentation.
