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IRU1150
IRU1150
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Shipping & Payment
About Shipping
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
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Maintain the goods in their original condition as received.
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IRU1150 DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The IRU1150 is a 4A regulator with extremely low drop out voltage using a proprietary bipolar process that achieves comparable equivalent on-resistance to that of discrete MOSFETs. This product is specifically designed to provide well regulated supply for applications requiring 2.8V or lower voltages from 3.3V ATX power supplies where high efficiency of a switcher can be achieved with out the cost and complexity associated with switching regulators. One such application is the new graphic chip sets that require anywhere from 2.4V to 2.7V supply such as the Intel I740 chip set.FEATURES 0.7V Dropout at 4A Fast Transient Response 1% Voltage Reference Initial Accuracy Built-In Thermal ShutdownAPPLICATIONS 3.3V to 2.7V Intel I740 Chip Set
Key Features
- 0.7V Dropout at 4A
- Fast Transient Response
- 1% Voltage Reference Initial Accuracy
- Built-In Thermal Shutdown
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Manufacturer | IR | Product Category ! | Linear Voltage Regulators |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is IRU1150?
The IRU1150 is a high efficiency, 8A, 100V integrated power MOSFET and PWM controller designed by International Rectifier. It is ideal for applications requiring high current, high efficiency DC-DC conversion, such as point of load (POL) converters, servers, and telecommunications equipment.
How Does IRU1150 Work?
The IRU1150 integrates both the power MOSFET and the PWM controller into a single package, providing high efficiency power conversion. The device operates by controlling the switching of the integrated MOSFET based on the feedback from the output voltage, adjusting the duty cycle to maintain regulation. It offers features such as internal soft-start, cycle-by-cycle current limit, and thermal shutdown for reliable operation.
How Many Pins does IRU1150 have and What are the Functions of the Pinout Configuration?
The IRU1150 is housed in a 16-pin QFN (Quad Flat No-Lead) package. The pinout configuration includes:
- VIN: Input power supply pin.
- BOOT: Bootstrap capacitor pin for driving the high-side MOSFET.
- PHASE: Output phase pin.
- COMP: Compensation pin for control loop stability.
- SS/TRK: Soft-start/track pin for controlling startup behavior.
- FB: Feedback pin for output voltage regulation.
- RT/CLK: External synchronization and frequency setting pin.
- EN: Enable pin for turning the device on/off.
- PGND: Power ground pin.
- VCC: Controller supply voltage pin.
What are the Pros and Cons of IRU1150?
Pros:
- Integration: Combines power MOSFET and PWM controller in a single package, reducing external components and board space.
- High Efficiency: Enables high efficiency power conversion for energy-sensitive applications.
- Protection Features: Includes over-current, over-voltage, and thermal protection for system reliability.
- Adjustability: Provides flexibility in frequency setting and soft-start behavior.
- Compact Package: The 16-pin QFN package offers a space-efficient design for compact applications.
Cons:
- Complexity: May require careful consideration of layout and external component selection for optimal performance.
- Design Sensitivity: Performance may be impacted by layout and board-level design choices.
- Thermal Considerations: Adequate thermal management is necessary for high-current applications.
Are There Any Equivalents/Alternatives to IRU1150 for Recommendation?
- The IRU3175 from International Rectifier is a similar integrated power MOSFET and PWM controller with lower current capability.
- Alternatives to the IRU1150 include the ADP2384 from Analog Devices and the MAX17575 from Maxim Integrated.
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