MIC5356-SGYMME Equivalent & Substitute Parts

Part Overview

The MIC5356-SGYMME is a linear voltage regulator IC from Microchip Technology designed for positive fixed dual-output applications. This device delivers 500mA per output channel with selectable voltage outputs of 1.8V and 3.3V, housed in an 8-MSOP package with exposed pad. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

MIC5356-SGYMME

Microchip TechnologyIn Stock: 3549MIC5356-SGYMME Datasheet

Current PartRFQ

MIC5355-SGYMME

Microchip TechnologyIn Stock: 17702MIC5355-SGYMME Datasheet

Parametric EquivalentRFQ

MIC5357-SGYMME

Microchip TechnologyIn Stock: 2969MIC5357-SGYMME Datasheet

Parametric EquivalentRFQ

LP2966IMM-1833/NOPB

National SemiconductorIn Stock: 1105LP2966IMM-1833/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MIC5356-SGYMME is determined by the following critical parameters:

Primary Substitution Criteria:

• Dual-output linear regulator configuration
• Fixed positive output voltages of 1.8V and 3.3V
• 8-MSOP package footprint compatibility
• Maximum input voltage of 5.5V or higher
• Output current capability of 500mA per channel
• Operating temperature range of -40°C to 125°C
• Enable control feature
• Over current and over temperature protection

Substitute Categories:

Parametric Equivalents (MIC5355-SGYMME, MIC5357-SGYMME): These parts maintain identical electrical specifications and package footprint, differing only in product status or minor performance characteristics. Both are from the same Microchip MIC535x family and provide direct functional replacement.

Manufacturer Recommended Substitute (LP2966IMM-1833/NOPB): This National Semiconductor device provides dual-output regulation with the same voltage options and package family. However, it operates with reduced output current (150mA vs. 500mA) and different electrical characteristics, making it suitable only for applications with lower current requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Options):

MIC5355-SGYMME is the preferred substitute. It maintains identical electrical specifications and package footprint as the obsolete MIC5356-SGYMME while offering active product status with higher inventory availability (17,666 units in stock). This part provides seamless functional replacement with no design modifications required.

MIC5357-SGYMME is an alternative from the same product family with active status. It offers improved dropout voltage performance (0.3V vs. 0.8V @ 500mA) and superior PSRR characteristics (70dB at 1kHz). However, it exhibits higher quiescent current (175 µA vs. 0.53 µA) and maximum supply current (240 µA vs. 200 µA), which may impact low-power applications. This part is suitable for designs where improved voltage regulation performance justifies the increased standby power consumption.

For Current-Limited Applications:

LP2966IMM-1833/NOPB from National Semiconductor is suitable only for applications requiring maximum output current of 150mA per channel. This part is not recommended as a direct replacement for the MIC5356-SGYMME in designs requiring the full 500mA output capability. The 8-VSSOP package differs from the 8-MSOP-EP footprint, requiring PCB layout modifications. Use this part only when application current requirements are confirmed below 150mA per channel.

Compliance and Certification:

All Microchip alternatives (MIC5355-SGYMME and MIC5357-SGYMME) maintain ROHS3 compliance and identical regulatory certifications (ECCN: EAR99, HTSUS: 8542.39.0001) as the original part. The LP2966IMM-1833/NOPB shares the same regulatory codes but RoHS status is not specified in available documentation.

Frequently Asked Questions (FAQ)

Q: Can MIC5355-SGYMME be used as a direct replacement for MIC5356-SGYMME?

A: Yes. The MIC5355-SGYMME is a parametric equivalent with identical electrical specifications, package footprint, and pin configuration. No design modifications are required. The primary difference is product status: MIC5356-SGYMME is obsolete while MIC5355-SGYMME is active with higher inventory availability.

Q: What is the difference between MIC5357-SGYMME and MIC5356-SGYMME?

A: Both parts are dual-output linear regulators with 1.8V and 3.3V outputs in 8-MSOP packages. The MIC5357-SGYMME offers superior dropout voltage (0.3V vs. 0.8V @ 500mA) and higher PSRR (70dB vs. 60dB at 1kHz). However, it draws higher quiescent current (175 µA vs. 0.53 µA). Select MIC5357-SGYMME when improved regulation performance is prioritized; select MIC5355-SGYMME for lowest standby power consumption.

Q: Is LP2966IMM-1833/NOPB compatible with MIC5356-SGYMME designs?

A: Compatibility depends on application current requirements. The LP2966IMM-1833/NOPB is limited to 150mA per channel output current, compared to 500mA for the MIC5356-SGYMME. If your design requires the full 500mA output capability, this part is not suitable. Additionally, the 8-VSSOP package differs from the 8-MSOP-EP footprint, requiring PCB layout changes.

Q: Can these parts be used interchangeably on the same PCB?

A: MIC5355-SGYMME and MIC5357-SGYMME share identical 8-MSOP-EP package footprints and pin configurations with MIC5356-SGYMME, enabling direct PCB compatibility. The LP2966IMM-1833/NOPB uses an 8-VSSOP package with different pin spacing and layout requirements, preventing direct PCB substitution without redesign.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: dual-output configuration, fixed 1.8V and 3.3V output voltages, 500mA per-channel output current capability, 8-MSOP package footprint, maximum input voltage of 5.5V or higher, -40°C to 125°C operating range, and dual protection features (over current and over temperature). Parts meeting all these criteria are direct substitutes.

Q: Which substitute offers the best performance for low-power applications?

A: MIC5355-SGYMME is optimal for low-power applications, maintaining the lowest quiescent current (0.53 µA) and maximum supply current (200 µA) specifications. MIC5357-SGYMME and LP2966IMM-1833/NOPB both exhibit significantly higher quiescent currents (175 µA and 300 µA respectively), making them less suitable for battery-powered or ultra-low-power designs.

Q: Are all substitute parts RoHS compliant?

A: MIC5355-SGYMME and MIC5357-SGYMME are ROHS3 compliant. RoHS compliance status for LP2966IMM-1833/NOPB is not specified in available technical documentation and should be verified with the supplier before use in RoHS-regulated applications.