No RSENSE Current Mode Synchronous Step-Down Switching Regulator The LTC1625IGN#PBF is a synchronous step-down switching regulator controller manufactured by Linear Technology (now part of Analog Devices). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** LINEAR (Linear Technology)
- **Part Number:** LTC1625IGN#PBF
- **Type:** Synchronous Step-Down Switching Regulator Controller
- **Input Voltage Range:** 4V to 36V
- **Output Voltage Range:** Adjustable (down to 0.8V)
- **Switching Frequency:** Up to 350kHz (adjustable)
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 16-Lead SSOP (GN)
- **Control Method:** Current Mode PWM
- **Efficiency:** Up to 95%
- **Duty Cycle Range:** 0% to 100%
- **Current Limit:** Adjustable
- **Synchronous Rectification:** Yes
- **Protection Features:** Overcurrent, undervoltage lockout (UVLO), thermal shutdown
### **Descriptions:**
The LTC1625IGN#PBF is a high-performance synchronous step-down DC/DC controller designed for applications requiring high efficiency and precise voltage regulation. It drives external N-channel MOSFETs to provide a regulated output voltage from an input supply ranging from 4V to 36V. The controller operates in current-mode PWM, ensuring stable performance under varying load conditions. It is suitable for power supplies in industrial, automotive, and telecommunications applications.
### **Features:**
- **Wide Input Voltage Range:** 4V to 36V operation.
- **High Efficiency:** Up to 95% efficiency with synchronous rectification.
- **Adjustable Output Voltage:** Programmable down to 0.8V.
- **Current-Mode Control:** Ensures fast transient response and stable operation.
- **Adjustable Switching Frequency:** Up to 350kHz (set by external components).
- **Synchronous Operation:** Reduces power loss compared to diode rectification.
- **Programmable Soft-Start:** Prevents inrush current at startup.
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage.
- **Thermal Shutdown Protection:** Prevents damage from overheating.
- **16-Lead SSOP Package:** Compact and suitable for space-constrained applications.
This information is based solely on the manufacturer's datasheet and specifications.
