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ISL8563EIB from INTERSIL

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ISL8563EIB

Manufacturer: INTERSIL

0.3-6V; +/-15kV ESD protected, +3V to +5.5V, +/-1 microamp, 250kbps, EIA/TIA-562, EIA/TIA-232 transmitter/receiver
Partnumber Manufacturer Quantity Availability
ISL8563EIB INTERSIL 95 In Stock

Description and Introduction

0.3-6V; +/-15kV ESD protected, +3V to +5.5V, +/-1 microamp, 250kbps, EIA/TIA-562, EIA/TIA-232 transmitter/receiver The ISL8563EIB is a synchronous buck regulator manufactured by INTERSIL. 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 from 0.8V to 90% of VIN  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 300kHz to 1MHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-Lead DFN (3mm x 3mm)  

### **Descriptions:**
The ISL8563EIB is a high-efficiency, synchronous step-down DC/DC regulator designed for applications requiring high performance and compact power solutions. It integrates high-side and low-side MOSFETs, reducing external component count. The regulator supports adjustable switching frequency and features cycle-by-cycle current limiting for protection.

### **Features:**
- **Integrated Power MOSFETs** – Reduces external component requirements.  
- **Adjustable Output Voltage** – Supports a wide range of applications.  
- **Programmable Switching Frequency** – Allows optimization for efficiency and noise.  
- **Cycle-by-Cycle Current Limit** – Enhances system reliability.  
- **Soft-Start Function** – Prevents inrush current at startup.  
- **Thermal Shutdown Protection** – Safeguards against overheating.  
- **Low Quiescent Current** – Improves efficiency in light-load conditions.  

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

Application Scenarios & Design Considerations

0.3-6V; +/-15kV ESD protected, +3V to +5.5V, +/-1 microamp, 250kbps, EIA/TIA-562, EIA/TIA-232 transmitter/receiver

Alternative Part Number

  • HIP6301CB --: Multi-phase PWM controller from Intersil's HIP series, functionally similar to the ISL8563 controller family and widely available as a drop-in class replacement.
  • LM2636M --: Single-phase synchronous buck controller with comparable voltage-mode control and gate drive capability, suitable as a cross-vendor substitute.
  • NCP5314DR2 --: Multi-phase buck controller offering similar PWM regulation features and a different naming series, making it a viable alternative for power supply designs.
  • LM5085MM --: Wide-input-voltage buck controller in the same functional class as the ISL8563, with similar current-mode control and an MSOP package; a well-supported drop-in style replacement for many designs.
  • TPS40210DGQ --: Wide-input boost/buck-boost controller offering comparable gate drive and current-mode architecture, suitable when the ISL8563 is used in a wide-Vin conversion stage.
  • LT1936EMS8E --: Compact high-voltage buck converter with integrated switch, providing a simpler single-chip alternative when the ISL8563 controller function is not strictly required.

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