MP2681BGS-Z Equivalent & Substitute Parts

Part Overview

The MP2681BGS-Z is a Constant Current/Constant Voltage (CC/CV) controller IC manufactured by Monolithic Power Systems Inc., designed for lithium ion and polymer battery charging applications. This Surface Mount device in 16-SOIC packaging supports 3 to 5 cell battery packs with programmable charging current, timer, and voltage parameters. The part is currently Active in product status with 752 units in stock.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when supply chain constraints occur, or when design flexibility is required for manufacturing optimization while maintaining identical electrical and mechanical performance.

Substiute Parts

MP2681BGS-Z

Monolithic Power Systems Inc.In Stock: 842MP2681BGS-Z Datasheet

Current PartRFQ

MP2681BGS-P

Monolithic Power Systems Inc.In Stock: 1438MP2681BGS-P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP2681BGS-Z are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

• Identical manufacturer (Monolithic Power Systems Inc.)
• Identical package type (16-SOIC with 0.154" / 3.90mm width)
• Identical mounting technology (Surface Mount)
• Identical battery chemistry support (Lithium Ion/Polymer)
• Identical cell count range (3 ~ 5 cells)
• Identical battery pack voltage (4.158V)
• Identical maximum supply voltage (30V)
• Identical charging current mode (Constant - Programmable)
• Identical programmable features (Current, Timer, Voltage)
• Identical fault protection features (Over Current, Over Temperature, Over Voltage, Short Circuit)
• Identical operating temperature range (-40°C ~ 125°C TJ)
• Active product status

The MP2681BGS-P meets all these criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both MP2681BGS-Z and MP2681BGS-P are Active products from Monolithic Power Systems Inc. with identical electrical and mechanical specifications. The MP2681BGS-P provides documented compliance certifications including ROHS3 compliance, REACH unaffected status, and defined moisture sensitivity level (MSL 2, 1 Year), which may be required for specific manufacturing or regulatory environments.

Selection between these parts should be based on supply availability, inventory levels, and regulatory compliance requirements of the end application. The MP2681BGS-P currently has higher inventory availability (1399 units) compared to the MP2681BGS-Z (752 units).

Frequently Asked Questions (FAQ)

Q: Can MP2681BGS-P be used as a direct replacement for MP2681BGS-Z?

A: Yes. Both parts are identical in electrical function, package type, mounting technology, and performance specifications. They are pin-compatible and functionally interchangeable in all applications designed for the MP2681BGS-Z.

Q: Are there any differences in the physical package between these parts?

A: No. Both parts use the identical 16-SOIC package with 0.154" (3.90mm) width, ensuring identical PCB footprint and assembly compatibility.

Q: What is the significance of the RoHS3 compliance listed for MP2681BGS-P?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements. If your application or market requires RoHS certification, the MP2681BGS-P provides documented compliance. The MP2681BGS-Z does not specify this certification status.

Q: Does the Moisture Sensitivity Level (MSL) rating affect part selection?

A: The MP2681BGS-P specifies MSL 2 with a 1-year floor life. This defines the maximum time the part can be stored in standard conditions before requiring baking prior to reflow soldering. If moisture sensitivity specifications are required for your manufacturing process, the MP2681BGS-P provides this documentation.

Q: Are both parts suitable for 3 to 5 cell lithium ion and polymer battery applications?

A: Yes. Both parts support identical battery chemistry (Lithium Ion/Polymer) and cell count range (3 ~ 5 cells) with identical programmable charging parameters and fault protection features.

Q: What is the operating temperature range for these parts?

A: Both parts operate across -40°C to 125°C junction temperature (TJ), suitable for industrial and consumer battery charging applications.