PI3546-00-LGIZ

Voltage Regulators - DC DC Switching Regulators Overview

The PI3546-00-LGIZ is a high-density ZVS-Buck regulator from the Vicor PI354x-00 family, packaged in a 10.0 x 10.0 x 2.56 mm LGA-85 System-in-Package. It accepts an input voltage range of 36 V to 60 V and provides a fixed 12 V output at up to 9 A. The device operates with a switching frequency of 800 kHz and supports a minimum operating temperature of -40 °C and a maximum of +125 °C. Key electrical parameters include a static current of 750 uA, load regulation of 0.1%, and transient tolerance up to 70 V before shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates Zero-Voltage Switching (ZVS) topology for high efficiency and reduced electromagnetic interference
• Requires minimal external components, needing only an inductor and two voltage selection resistors
• Supports paralleling and single-wire current sharing for scalable power architectures
• Includes comprehensive protection features such as overvoltage, overtemperature, and UVLO

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load conversion in telecommunications infrastructure
• Power distribution in industrial automation systems
• Voltage regulation for embedded computing platforms
• Power supply units for medical equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix LGIZ confirms the -40 °C minimum operating temperature rating. Confirm package type is LGA-85 and that the part is moisture sensitive. Ensure the application design accounts for the 70 V transient tolerance limit before triggering shutdown. Check RoHS and REACH compliance status via official documentation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 12 V output is required from a 48 V nominal bus. Choose based on the 9 A continuous current capability and the need for high power density in a small footprint. Consider the 800 kHz switching frequency for thermal management and component sizing. Evaluate if the wide input range of 36 V to 60 V matches the system's input variations.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the PI354x-00 series of Cool-Power regulators designed for high input voltages. It utilizes a System-in-Package approach to integrate the controller, power switches, and support components. The series is optimized for applications requiring high efficiency and fast transient response within a compact form factor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

PI3548-00-LGIZ: Provides a 24 V output instead of 12 V. PI3525-00-LGIZ: Offers 20 A output at 5 V but operates at a different switching frequency of 500 kHz.