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ISL88031IU8HFZ from INTERSIL

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ISL88031IU8HFZ

Manufacturer: INTERSIL

Quintuple Voltage Monitor

Partnumber Manufacturer Quantity Availability
ISL88031IU8HFZ INTERSIL 4004 In Stock

Description and Introduction

Quintuple Voltage Monitor The ISL88031IU8HFZ is a product from **INTERSIL** (now part of **Renesas Electronics**). Below are its specifications, descriptions, and features based on available data:

### **Specifications:**
- **Manufacturer:** INTERSIL (Renesas Electronics)  
- **Package:** 8-Lead DFN (3x3mm)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable (via external resistors)  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 1.2MHz (typical)  
- **Efficiency:** Up to 95%  
- **Protection Features:** Overcurrent, Overtemperature, Undervoltage Lockout (UVLO)  

### **Description:**  
The ISL88031IU8HFZ is a **synchronous step-down (buck) DC/DC converter** designed for high efficiency and compact power solutions. It integrates power MOSFETs and operates at a fixed frequency, making it suitable for portable and space-constrained applications.

### **Features:**  
- **High Efficiency:** Up to 95% efficiency with synchronous rectification.  
- **Low Quiescent Current:** Optimized for battery-powered applications.  
- **Adjustable Output Voltage:** Configurable via external resistors.  
- **Integrated Power MOSFETs:** Reduces external component count.  
- **Fixed-Frequency PWM Operation:** Ensures stable performance.  
- **Protection Circuits:** Includes overcurrent, thermal shutdown, and UVLO.  
- **Compact DFN Package:** Ideal for small PCB designs.  

This information is based on INTERSIL's datasheet and product documentation. For detailed application notes, refer to the official datasheet from Renesas Electronics.

Application Scenarios & Design Considerations

Quintuple Voltage Monitor

Alternative Part Number

  • MAX6710KUT+T --: Supervisory circuit with similar voltage monitoring and reset functions in a small SOT package, suitable drop-in replacement for many ISL88031 applications.
  • TPS3808G01DBVR --: Adjustable supervisory reset IC with programmable delay, comparable functionality and widely available in SOT-23 package.
  • ADM803SAKSZ-REEL --: Microprocessor supervisory circuit with reset output, similar threshold and package options, good alternative when exact ISL part is unavailable.
  • TPS3700DDCR --: Window watchdog voltage supervisor with adjustable thresholds, functionally comparable and widely available.
  • ADM8316WBCPZ --: Supervisory circuit with watchdog and manual reset, suitable replacement for supply monitoring applications.

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