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IRU3048CS from IOR,International Rectifier

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IRU3048CS

Manufacturer: IOR, IR

Dual Synchronous PWM Controller with Current sharing Circuitry and LDO Controller

Partnumber Manufacturer Quantity Availability
IRU3048CS IOR, IR 577 In Stock

Description and Introduction

Dual Synchronous PWM Controller with Current sharing Circuitry and LDO Controller The IRU3048CS is a DC-DC converter module manufactured by Ericsson (now part of Flex). Below are the factual specifications, descriptions, and features of the IRU3048CS:

### **Specifications:**
- **Input Voltage Range:** 36 V to 75 V  
- **Output Voltage:** 3.3 V (adjustable from 2.9 V to 3.6 V)  
- **Output Current:** Up to 50 A  
- **Output Power:** 165 W  
- **Efficiency:** Up to 91%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Switching Frequency:** 300 kHz  
- **Isolation Voltage:** 1500 VDC (input to output)  
- **Dimensions:** 58.4 mm × 36.8 mm × 12.7 mm (2.3 in × 1.45 in × 0.5 in)  
- **Weight:** 50 g (approx.)  

### **Descriptions:**
- The IRU3048CS is a high-efficiency, non-isolated DC-DC converter module designed for intermediate bus applications.  
- It provides a regulated 3.3 V output from a wide-range 48 V input, making it suitable for telecom, networking, and industrial applications.  
- The module includes overcurrent, overvoltage, and overtemperature protection.  

### **Features:**
- **Wide Input Voltage Range:** Supports 36 V to 75 V input.  
- **High Efficiency:** Up to 91% efficiency reduces power losses.  
- **Adjustable Output Voltage:** Can be set between 2.9 V and 3.6 V via an external resistor.  
- **Remote On/Off Control:** Allows for power sequencing and energy savings.  
- **Protection Features:** Includes overcurrent (OCP), overvoltage (OVP), and overtemperature (OTP) protection.  
- **Compact Design:** Small footprint and low profile for space-constrained applications.  
- **No Minimum Load Required:** Stable operation even at no load.  

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

Application Scenarios & Design Considerations

Dual Synchronous PWM Controller with Current sharing Circuitry and LDO Controller

Alternative Part Number

  • ISL6520ACBZ --: Single synchronous buck PWM controller in SOIC-8, functionally similar to the IRU3048CS and widely available as a direct controller replacement.
  • TPS5430DDA --: Integrated 3A step-down converter in SOIC-8 PowerPAD that can replace the controller-plus-FET function in many IRU3048CS designs with simpler external circuitry.
  • LM2678S-ADJ --: Adjustable 5A step-down regulator in TO-263 that offers a robust alternative when the IRU3048CS is used in a buck converter application.
  • TPS40057PWPR --: Synchronous buck controller with similar voltage-mode control and gate drive capability, suitable as a drop-in functional replacement.
  • LTC3851AEMS#PBF --: Synchronous step-down controller with comparable feature set and drive strength, usable as an alternative with minor layout adjustments.
  • LM2596S-ADJ --: Popular adjustable buck regulator in a similar package class, commonly used as a second-source substitute for general-purpose DC-DC controller applications when exact pin compatibility is not required.

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