520kHz/1.6MHz The **LM2735XSD/NOPB** is a switching regulator IC manufactured by **National Semiconductor (NSC)**. Below are its key specifications, descriptions, and features based on factual data:
### **Specifications:**
- **Manufacturer:** National Semiconductor (NSC)
- **Category:** Switching Regulator
- **Output Type:** Adjustable
- **Topology:** Buck (Step-Down)
- **Input Voltage Range:** **2.7V to 14V**
- **Output Voltage Range:** **1.23V to 14V**
- **Output Current:** **1A**
- **Switching Frequency:** **1.6MHz**
- **Efficiency:** Up to **90%**
- **Operating Temperature Range:** **-40°C to +125°C**
- **Package:** **SOT-23-6**
### **Descriptions:**
- The **LM2735XSD/NOPB** is a **high-efficiency, step-down DC-DC converter** designed for battery-powered and portable applications.
- It integrates a **1A switch** and supports **PWM (Pulse-Width Modulation)** operation for stable output regulation.
- The device operates at a fixed **1.6MHz switching frequency**, allowing the use of small external components.
### **Features:**
- **Wide Input Voltage Range (2.7V to 14V)** – Suitable for various power sources.
- **High Switching Frequency (1.6MHz)** – Reduces the need for large inductors and capacitors.
- **Adjustable Output Voltage (1.23V to 14V)** – Flexible for different applications.
- **Internal Soft-Start** – Prevents inrush current at startup.
- **Thermal Shutdown & Current Limit Protection** – Enhances reliability.
- **Low Shutdown Current (<1µA)** – Improves power efficiency in standby mode.
- **Compact SOT-23-6 Package** – Ideal for space-constrained designs.
This information is sourced from the manufacturer's datasheet and technical documentation.
