NB679AGD-P Equivalent & Substitute Parts

Part Overview

The NB679AGD-P is a Power Management Integrated Circuit (PMIC) manufactured by Monolithic Power Systems Inc., classified as a Voltage Regulator with Linear Switching topology. This device integrates two independent output channels: a Step-Down (Buck) Synchronous regulator delivering 5.1V at 8A, and a Linear (LDO) regulator providing 5V at 100mA. Operating at a switching frequency of 700kHz, the NB679AGD-P is designed for applications requiring dual-output power regulation from a 5.5V to 24V supply input. The component is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified based on identical electrical specifications, topology, and package configuration to ensure direct functional equivalence in circuit design.

Substiute Parts

NB679AGD-P

Monolithic Power Systems Inc.In Stock: 1827NB679AGD-P Datasheet

Current PartRFQ

NB679AGD-Z

Monolithic Power Systems Inc.In Stock: 44013NB679AGD-Z Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the NB679AGD-P are identified through parametric equivalence analysis. The substitution criteria are based on the following key parameters that must remain identical:

• Topology: Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
• Number of Outputs: 2
• Switching Frequency: 700kHz
• Output 1 Voltage/Current: 5.1V, 8A
• Output 2 Voltage/Current: 5V, 100mA
• Supply Voltage Range: 5.5V ~ 24V
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Package / Case: 12-PowerVFQFN (2x3)
• Base Product Number: NB679

The NB679AGD-Z is classified as a parametric equivalent substitute. This part maintains identical electrical specifications, topology configuration, and physical package dimensions. The only difference is the packaging format (Cut Tape vs. standard packaging), which does not affect functional performance or circuit compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the NB679AGD-P and NB679AGD-Z are active production components with full RoHS3 compliance and REACH unaffected status. Selection between these parts is determined by procurement and assembly requirements rather than functional performance:

• NB679AGD-P: Standard packaging format, suitable for standard component handling and storage procedures.
• NB679AGD-Z: Cut Tape (CT) packaging format, optimized for automated pick-and-place assembly operations and tape-reel handling systems.

Both parts are electrically and mechanically interchangeable. The choice between them depends on manufacturing process requirements, inventory management practices, and assembly equipment compatibility. No functional differences exist between these two part numbers.

Frequently Asked Questions (FAQ)

Q: Can NB679AGD-Z be used as a direct replacement for NB679AGD-P in production?

A: Yes. The NB679AGD-Z is a parametric equivalent with identical electrical specifications, topology, output ratings, and package dimensions. The only difference is the packaging format (Cut Tape vs. standard). Both parts are functionally interchangeable in circuit design and application.

Q: What is the difference between the packaging formats?

A: NB679AGD-P uses standard packaging, while NB679AGD-Z uses Cut Tape (CT) format. Cut Tape packaging is designed for automated assembly systems and tape-reel handling. Standard packaging is used for manual or alternative handling procedures. The actual component and its performance characteristics are identical.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts maintain identical operating temperature ranges (-40°C ~ 125°C TJ), supply voltage specifications (5.5V ~ 24V), and output ratings (5.1V/8A for Buck output, 5V/100mA for LDO output). Thermal and electrical performance is equivalent.

Q: Do both parts have the same compliance certifications?

A: Yes. Both NB679AGD-P and NB679AGD-Z are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Compliance status is identical.

Q: Can these parts be mixed in the same production batch?

A: Yes, from a functional and electrical standpoint. However, assembly process compatibility should be verified with your manufacturing equipment specifications, as the packaging format difference may affect automated handling procedures.