ADP2450ASTZ-4-R7

Power Management - Specialized Overview

The ADP2450ASTZ-4-R7 is a specialized Power Management IC (PMIC) designed for industrial circuit breaker applications. It integrates a boost shunt controller with power detection and a high-efficiency buck regulator. The device operates within an input voltage range of 4.5 V to 36 V and provides a fixed 3.3 V output at up to 500 mA. It features low quiescent current of 1.35 mA and functions reliably across a temperature range of -40°C to +125°C. Housed in an LQFP-48 package, it supports digital control interfaces.

Power Management - Specialized Feature Summary

• Integrates a boost shunt controller with power detection capabilities
• Includes a high-efficiency buck regulator for auxiliary power
• Supports digital communication via I2C, SMBus, and PMBus interfaces

Power Management - Specialized Applications

• Current Transformer (CT) power supply
• Low voltage circuit breaker systems
• Industrial protection relay power management

Power Management - Specialized Procurement Notes

Verify the specific suffix 'R7' indicates reel packaging when ordering. Confirm the 'ASTZ' designation corresponds to the LQFP-48 package variant distinct from other pinouts. Ensure compatibility with existing PCB footprints before procurement, as package dimensions are critical for integration into industrial enclosures.

Power Management - Specialized Selection Notes

Select this component when a combined shunt regulation and buck conversion solution is required for circuit breakers. The fixed 3.3 V output simplifies design compared to adjustable variants. Consider the LQFP-48 package size constraints against available board space. Verify that the integrated digital interface meets the system's communication protocol requirements.

Power Management - Specialized Part Context

This part belongs to the ADP2450 family of digital power management ICs. It shares core functionality with models like the ADP2450ACPZ-4-R7 but differs in package type and output configuration. The ASTZ series specifically utilizes the LQFP-48 form factor, distinguishing it from the LFCSP-32 packages found in other family members.

Power Management - Specialized Replacement Considerations

The ADP2450ACPZ-4-R7 serves as a functional alternative with identical electrical specifications but utilizes an LFCSP-32 package instead of LQFP-48. Substitution requires careful review of mechanical footprint differences and thermal dissipation characteristics during hardware redesign.