AN8003M-E1 Equivalent & Substitute Parts

Part Overview

The AN8003M-E1 is a linear voltage regulator IC manufactured by Panasonic Electronic Components, designed for positive fixed 3V output applications with 50mA current capacity. This device operates across a wide input voltage range up to 20V and is housed in a 3-HSIP surface mount package. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

AN8003M-E1

Panasonic Electronic ComponentsIn Stock: 17336AN8003M-E1 Datasheet

Current PartRFQ

MCP1824ST-3002E/DB

Microchip TechnologyIn Stock: 9753MCP1824ST-3002E/DB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AN8003M-E1 is determined by the following critical parameters:

• Output Voltage Match: Fixed 3V output is mandatory for direct substitution
• Output Current Capability: Minimum 50mA required; higher ratings are acceptable for applications with lower current demands
• Input Voltage Compatibility: Maximum input voltage of 20V or higher ensures compatibility with the original design envelope
• Package Compatibility: Surface mount packages with equivalent or smaller footprints are acceptable; pin configuration must support the same electrical connections
• Product Status: Active or current production status preferred for long-term availability
• Temperature Range: Operating range of -30°C to 125°C or broader ensures thermal compatibility
• Protection Features: Over current protection is a baseline requirement

The MCP1824ST-3002E/DB from Microchip Technology meets these substitution criteria with enhanced specifications in output current (300mA vs. 50mA), additional protection features, and active product status.

Parameter Comparison

Engineering Selection Recommendations

The MCP1824ST-3002E/DB is a suitable substitute for the AN8003M-E1 based on the following engineering criteria:

• Voltage Output Match: Both devices provide fixed 3V output, meeting the primary functional requirement
• Current Capability: The MCP1824ST-3002E/DB delivers 300mA, exceeding the 50mA requirement of the original design, providing design margin and future scalability
• Product Status: Active production status ensures long-term availability and supply chain continuity, addressing the obsolescence of the AN8003M-E1
• Compliance: ROHS3 compliance and REACH unaffected status satisfy modern regulatory requirements
• Temperature Range: Extended lower temperature limit (-40°C vs. -30°C) provides broader operational envelope
• Protection Features: Enhanced protection including over temperature, short circuit, and UVLO provides superior reliability compared to over current protection alone

Design Consideration: The MCP1824ST-3002E/DB has a maximum input voltage of 6V, which is lower than the AN8003M-E1 specification of 20V. Applications requiring input voltages above 6V require alternative substitutes or circuit redesign with input voltage regulation.

Frequently Asked Questions (FAQ)

Q: Can the MCP1824ST-3002E/DB directly replace the AN8003M-E1 in all applications?

A: Direct replacement is possible for applications where the input voltage does not exceed 6V. The AN8003M-E1 supports input voltages up to 20V, while the MCP1824ST-3002E/DB is limited to 6V maximum. Verify your circuit's input voltage specification before substitution.

Q: What are the package differences between these two parts?

A: The AN8003M-E1 uses a TO-243AA (3-HSIP) package, while the MCP1824ST-3002E/DB uses a SOT-223-3 package. Both are surface mount packages with different physical footprints and pin configurations. PCB layout modifications are required for substitution.

Q: Does the higher output current rating of the MCP1824ST-3002E/DB affect compatibility?

A: No. Higher output current capability is a beneficial enhancement. The MCP1824ST-3002E/DB can supply up to 300mA, while the original design requires only 50mA. This provides design margin and allows for future current demand increases without component replacement.

Q: Are there compliance or certification differences?

A: The MCP1824ST-3002E/DB carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory standards. The AN8003M-E1 specifications do not include these certifications, reflecting its obsolete status.

Q: What is the impact of the lower PSRR specification in the MCP1824ST-3002E/DB?

A: The MCP1824ST-3002E/DB has a PSRR of 55dB (100Hz) compared to 70dB (120Hz) for the AN8003M-E1. This 15dB difference indicates slightly reduced power supply rejection. For noise-sensitive applications, verify that the substitute's PSRR meets your ripple rejection requirements.

Q: Can I use the MCP1824ST-3002E/DB in applications with input voltages above 6V?

A: No. The MCP1824ST-3002E/DB maximum input voltage is 6V. Using it with higher input voltages will damage the device. If your application requires higher input voltage support, alternative substitutes or input voltage regulation circuitry must be evaluated.