PAM3101DAB300 Equivalent & Substitute Parts

Part Overview

The PAM3101DAB300 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 3V output applications with 300mA current capacity in a compact SOT-23-5 surface mount package. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The PAM3101DAB300 serves as a fixed output positive regulator suitable for low-power applications requiring stable 3V regulation with integrated protection features.

Substiute Parts

PAM3101DAB300

Diodes IncorporatedIn Stock: 25678PAM3101DAB300 Datasheet

Current PartRFQ

AP2127K-3.0TRG1

Diodes IncorporatedIn Stock: 18172AP2127K-3.0TRG1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PAM3101DAB300 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Output voltage configuration: Positive fixed 3V output
• Output current capacity: 300mA minimum
• Package type: SOT-23-5 (SC-74A, SOT-753)
• Input voltage maximum rating: Must accommodate system supply voltage
• Dropout voltage: Lower values improve efficiency but must not compromise regulation
• Operating temperature range: -40°C ~ 85°C
• Protection features: Over current, over temperature, short circuit
• Compliance: ROHS3 compliant, REACH unaffected

The AP2127K-3.0TRG1 qualifies as a direct substitute based on matching output voltage, output current, package configuration, operating temperature range, and regulatory compliance. Both devices are manufactured by Diodes Incorporated and share identical functional specifications for the core regulation parameters.

Parameter Comparison

Engineering Selection Recommendations

The AP2127K-3.0TRG1 is the qualified substitute for the obsolete PAM3101DAB300. Selection is based on the following engineering criteria:

Product Status: The PAM3101DAB300 is obsolete, while the AP2127K-3.0TRG1 maintains active production status, ensuring long-term availability and supply chain continuity.

Electrical Compatibility: Both devices deliver identical 3V fixed output at 300mA with matching quiescent current specifications. The AP2127K-3.0TRG1 provides improved performance with lower dropout voltage (0.3V versus 0.45V) and higher maximum input voltage rating (6V versus 5.5V), making it suitable for a broader range of input supply conditions.

Package and Thermal Compatibility: Identical SOT-23-5 packaging ensures direct PCB layout compatibility without redesign. Both devices operate across the full -40°C to 85°C temperature range.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. Moisture sensitivity level 1 (unlimited) indicates no special handling requirements.

Protection Features: The AP2127K-3.0TRG1 includes over current and over temperature protection. The PAM3101DAB300 additionally specifies short circuit protection; however, this does not preclude substitution as the AP2127K-3.0TRG1 provides equivalent functional protection through its over current mechanism.

Frequently Asked Questions (FAQ)

Q: Can the AP2127K-3.0TRG1 directly replace the PAM3101DAB300 without PCB modifications?

A: Yes. Both devices use identical SOT-23-5 packaging (SC-74A, SOT-753) with matching pin configurations. Direct PCB substitution is possible without layout changes.

Q: What is the primary reason for substitution?

A: The PAM3101DAB300 is obsolete. The AP2127K-3.0TRG1 is an active production equivalent from the same manufacturer with identical core specifications.

Q: Are there differences in output voltage regulation between these parts?

A: Both devices provide fixed 3V output. The AP2127K-3.0TRG1 offers improved dropout voltage performance (0.3V versus 0.45V at 300mA), resulting in better efficiency and lower heat dissipation.

Q: Do both parts support the same input voltage range?

A: The AP2127K-3.0TRG1 supports higher maximum input voltage (6V versus 5.5V). For applications using input voltages up to 5.5V, both parts are fully compatible. For applications requiring input voltages between 5.5V and 6V, only the AP2127K-3.0TRG1 is suitable.

Q: Are there any protection feature differences?

A: Both devices include over current and over temperature protection. The PAM3101DAB300 additionally specifies short circuit protection; the AP2127K-3.0TRG1 achieves equivalent protection through its over current mechanism.

Q: What is the quiescent current for both devices?

A: Both the PAM3101DAB300 and AP2127K-3.0TRG1 have identical quiescent current specifications of 90 µA, making them equally suitable for low-power standby applications.

Q: Are both parts RoHS compliant?

A: Yes. Both devices are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the moisture sensitivity level for these parts?

A: Both devices have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control or baking requirements during storage or handling.