ZM7316G-65503-B1

Overview

The ZM7316G-65503-B1 is a specialized Power Management IC (PMIC) from Bel Power Solutions, designed for digital power control applications. It functions as a power supply controller capable of managing 16 Point-of-Load (POL) converters organized into 3 distinct groups. The device operates within an input voltage range of 3 V to 3.6 V and draws a typical operating supply current of 12 mA. It supports high or low side sensing configurations and is rated for operation in temperatures ranging from -40°C to +85°C. The component is housed in a QFN-64 package.

Feature Summary

• Digital power control architecture supporting 16 POL channels across 3 independent groups
• Flexible sensing capability with support for both high-side and low-side current monitoring
• Integrated regulation and monitoring functions within a single PMIC solution

Applications

• Digital power controllers for multi-phase point-of-load systems
• High-density server and storage power architectures
• Telecommunications infrastructure power management

Procurement Notes

This component is officially classified as obsolete and is no longer manufactured by Bel Power Solutions. Verification of availability should focus on surplus distributors or secondary market sources rather than direct manufacturer allocation. Buyers must confirm the authenticity and condition of existing stock, as standard procurement channels do not support new orders for this part number.

Selection Notes

Engineers requiring equivalent functionality should evaluate active alternatives within the DM73XX series, such as the DM7316G, which offers similar digital power control capabilities. Selection criteria should prioritize compatibility with existing 16-channel POL topologies and adherence to the 3V to 3.6V supply voltage requirements. Thermal performance and QFN-64 footprint compatibility are critical factors when transitioning to replacement components.

Part Context

The ZM7316G-65503-B1 belongs to Bel Power Solutions' advanced digital power management portfolio, specifically engineered for complex multi-rail systems. It represents a specialized class of PMICs that consolidate control logic for numerous output stages. This series is distinct from standard linear regulators, focusing instead on intelligent monitoring and regulation of digital power networks in demanding industrial and communication environments.

Replacement Considerations

The DM7316G-65503-R100 is a confirmed substitute part number offering identical functional specifications. Designers should verify pin-to-pin compatibility and software configuration settings when migrating from the obsolete ZM variant to the active DM variant.