No RSENSE Current Mode Synchronous Step-Down Switching Regulator The LTC1625IS#PBF is a synchronous step-down switching regulator manufactured by Linear Technology (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** LINEAR (Linear Technology)
- **Part Number:** LTC1625IS#PBF
- **Package:** 16-SOIC (Narrow)
- **Operating Temperature Range:** -40°C to +85°C
- **Input Voltage Range:** 4V to 36V
- **Output Voltage Range:** Adjustable down to 1.23V
- **Output Current:** Up to 5A (with external components)
- **Switching Frequency:** 200kHz (adjustable)
- **Efficiency:** Up to 95%
- **Topology:** Synchronous Buck (Step-Down)
- **Control Method:** Current Mode PWM
### **Descriptions:**
The LTC1625IS#PBF is a high-efficiency, synchronous step-down switching regulator designed for applications requiring high power density and efficiency. It features a built-in synchronous rectifier, reducing the need for an external Schottky diode. The regulator operates in current mode, providing fast transient response and stable operation over a wide input voltage range.
### **Features:**
- **Wide Input Voltage Range (4V to 36V)** – Suitable for automotive, industrial, and telecom applications.
- **High Efficiency (Up to 95%)** – Reduces power dissipation and heat generation.
- **Adjustable Switching Frequency (200kHz)** – Allows optimization for efficiency and component size.
- **Synchronous Operation** – Improves efficiency by eliminating diode losses.
- **Current Mode Control** – Ensures stable operation with fast transient response.
- **Short-Circuit Protection** – Includes foldback current limiting.
- **Low Dropout Operation** – Maintains regulation even when input voltage is close to output.
- **Adjustable Soft-Start** – Reduces inrush current during startup.
- **Thermal Shutdown** – Protects the device from overheating.
This information is based on the manufacturer's datasheet and technical documentation.
