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Product Detailed Parameters
- Description：70A/20V SMART POWER STAGE
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Current Monitor
- Sensing Method：High/Low-Side
- Accuracy：±5%
- Voltage - Input：3V ~ 20V
- Current - Output：60A
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：39-PowerWFQFN Module
- Supplier Device Package：39-QFN (5x6)
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Overview
The AOZ5277QI-02 is a high-performance smart power stage half-bridge driver designed for synchronous buck converters. It integrates DrMOS technology to provide a compact solution for high-current applications. The device supports up to 70A current capability and operates with a 20V supply voltage. It features an integrated current monitor regulator for both high-side and low-side channels, enabling precise control and protection. The component is housed in a 39-QFN (5x6) package, facilitating efficient thermal management and space-saving PCB layouts.
Feature Summary
- Integrates DrMOS technology for high-efficiency power conversion
- Includes built-in current monitor regulators for accurate feedback
- Designed specifically for synchronous buck converter topologies
Applications
- Synchronous buck converters
- High-density power supplies
- Server and data center power distribution
Procurement Notes
Verify the specific -02 suffix against official Alpha & Omega Semiconductor documentation to confirm pinout and functional differences from the standard AOZ5277QI. Ensure compatibility with existing board designs regarding the 39-QFN footprint. Confirm RoHS compliance status through the manufacturer's latest environmental declarations before finalizing procurement orders.
Selection Notes
Select this component when a compact, high-current smart power stage is required for synchronous buck applications. The integrated current monitoring simplifies design complexity by reducing external component count. Consider the 20V operating range and 70A capacity to ensure it meets the specific load requirements of the target system without exceeding thermal limits.
Part Context
This part belongs to the AOZ5277 series of smart power stages from Alpha & Omega Semiconductor. These devices are engineered to replace traditional discrete MOSFET and gate driver solutions, offering improved performance and reduced board space. The series is widely used in modern power electronics where efficiency and density are critical design constraints.
Replacement Considerations
The AOZ5277QI is the base model; verify if the -02 variant offers distinct electrical characteristics or pin configurations. Cross-reference with other DrMOS modules from Alpha & Omega for potential drop-in replacements that match the 39-QFN package and 20V/70A specifications.
