MP163CGS-33 Equivalent & Substitute Parts

Part Overview

The MP163CGS-33 is a 700V non-isolated offline power converter from Monolithic Power Systems Inc., designed for boost, buck, buck-boost, and flyback topologies operating at 28kHz switching frequency. This PMIC delivers 4W output power with integrated current limiting, overload, and short circuit protection. The device is Active status and ROHS3 compliant, making it suitable for industrial and consumer offline power supply applications requiring compact 8-SOIC packaging.

Substitute parts become necessary when the primary part number experiences supply constraints, extended lead times, or inventory limitations. The parts listed below maintain electrical and mechanical compatibility with MP163CGS-33 while offering alternative sourcing options.

Substiute Parts

MP163CGS-33

Monolithic Power Systems Inc.In Stock: 805MP163CGS-33 Datasheet

Current PartRFQ

MP163AGS-33

Monolithic Power Systems Inc.In Stock: 1118MP163AGS-33 Datasheet

Parametric EquivalentRFQ

MP163BGS-33

Monolithic Power Systems Inc.In Stock: 827MP163BGS-33 Datasheet

Parametric EquivalentRFQ

MP163CGS-5

Monolithic Power Systems Inc.In Stock: 910MP163CGS-5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for MP163CGS-33 is determined by strict parametric matching across all critical electrical and mechanical specifications. The following parameters define the substitution scope:

• Voltage - Breakdown: 700V (mandatory match)
• Output Isolation: Non-Isolated (mandatory match)
• Topology: Boost, Buck, Buck-Boost, Flyback (mandatory match)
• Frequency - Switching: 28kHz (mandatory match)
• Power (Watts): 4W (mandatory match)
• Voltage - Supply (Vcc/Vdd): 5.4V ~ 6V (mandatory match)
• Voltage - Start Up: 5.3V (mandatory match)
• Fault Protection: Current Limiting, Over Load, Short Circuit (mandatory match)
• Control Features: EN, Soft Start (mandatory match)
• Operating Temperature: -40°C ~ 125°C (TJ) (mandatory match)
• Package / Case: 8-SOIC, 7 Leads (mandatory match)
• Mounting Type: Surface Mount (mandatory match)
• RoHS Status: ROHS3 Compliant (mandatory match)
• Moisture Sensitivity Level (MSL): 2 (1 Year) (mandatory match)

All substitute parts listed below meet these criteria and are manufactured by Monolithic Power Systems Inc. with Active product status.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts—MP163AGS-33, MP163BGS-33, and MP163CGS-5—are functionally equivalent to MP163CGS-33 based on provided electrical and mechanical parameters. Each part maintains Active product status and ROHS3 compliance, ensuring regulatory alignment for industrial and consumer applications.

Selection between these parts should be based on inventory availability and supply chain requirements. MP163AGS-33 offers 1072 units in stock, MP163BGS-33 provides 782 units, and MP163CGS-5 has 816 units available. The primary part MP163CGS-33 maintains 705 units in inventory.

All parts are manufactured by Monolithic Power Systems Inc. and share identical electrical specifications, topology support, protection features, and thermal operating range. Direct substitution is supported without circuit redesign or layout modification when maintaining the 8-SOIC surface mount package footprint.

Frequently Asked Questions (FAQ)

Q: Can MP163AGS-33, MP163BGS-33, or MP163CGS-5 be used as direct replacements for MP163CGS-33?

A: Yes. All substitute parts match the mandatory electrical parameters including 700V breakdown voltage, 28kHz switching frequency, 4W power rating, 5.4V–6V supply voltage range, and identical fault protection and control features. Package, mounting type, and compliance certifications are identical.

Q: Are there differences in topology support between the main part and substitutes?

A: No. All parts support identical topologies: boost, buck, buck-boost, and flyback configurations.

Q: What is the significance of the part number suffix differences (AGS, BGS, CGS)?

A: The provided data does not specify functional differences associated with these suffixes. All parts maintain identical electrical and mechanical specifications as listed in this reference.

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

A: Yes, provided the circuit design and PCB layout accommodate the 8-SOIC, 7-lead surface mount package. All parts share identical pinout and electrical characteristics.

Q: Are there thermal or reliability differences between substitute parts?

A: No. All parts operate across the same temperature range (-40°C to 125°C junction temperature) and maintain identical MSL rating of 2 (1 Year).

Q: Which substitute part should be selected for new designs?

A: Selection should be based on current inventory availability and supply chain lead times. All parts are electrically and mechanically equivalent for new design implementation.