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ISL6844IB from INTERSIL

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ISL6844IB

Manufacturer: INTERSIL

Improved Industry Standard Single Ended Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
ISL6844IB INTERSIL 1 In Stock

Description and Introduction

Improved Industry Standard Single Ended Current Mode PWM Controller The ISL6844IB is a synchronous buck PWM controller manufactured by INTERSIL (now part of Renesas Electronics). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 25V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Switching Frequency:** 200kHz to 1MHz (adjustable with external resistor)  
- **Maximum Duty Cycle:** 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead QSOP  

### **Descriptions:**
- The ISL6844IB is a high-performance, synchronous buck PWM controller designed for DC-DC voltage regulation.  
- It supports voltage-mode control with adjustable switching frequency for optimized efficiency.  
- The device includes features such as soft-start, overcurrent protection, and undervoltage lockout (UVLO).  
- It is suitable for applications requiring high efficiency and precise voltage regulation, such as telecom, industrial, and computing systems.  

### **Features:**
- **Adjustable Output Voltage:** Supports output voltages as low as 0.8V.  
- **Synchronous Operation:** Integrates high-side and low-side MOSFET drivers for improved efficiency.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent Protection:** Uses inductor DCR sensing or external resistor for current limit.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  
- **External Frequency Synchronization:** Allows synchronization to an external clock.  
- **Thermal Shutdown:** Protects the device from overheating.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

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