AP7387-50YR-13 Equivalent & Substitute Parts

Part Overview

The AP7387-50YR-13 is a Linear Voltage Regulator IC manufactured by Diodes Incorporated, classified as a Power Management (PMIC) component. This device delivers a positive fixed 5V output at 150mA with low quiescent current operation, housed in a SOT-89R-3 package. The part is Active in product status and widely used in applications requiring compact, low-power voltage regulation. Substitute parts are identified when electrical specifications, output configuration, and mechanical packaging remain equivalent across the product line.

Substiute Parts

AP7387-50YR-13

Diodes IncorporatedIn Stock: 1065AP7387-50YR-13 Datasheet

Current PartRFQ

AP7387-50Y-13

Diodes IncorporatedIn Stock: 5553AP7387-50Y-13 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP7387-50YR-13 is determined by equivalence in the following critical parameters:

• Output voltage specification (5V fixed)
• Maximum output current (150mA)
• Input voltage rating (60V maximum)
• Dropout voltage performance (1.35V @ 150mA)
• Quiescent current (4 µA)
• Operating temperature range (-40°C ~ 125°C)
• Package type (TO-243AA, Surface Mount)
• Protection features (Over Current, Over Temperature, Short Circuit)
• Regulatory compliance (ROHS3 Compliant, REACH Unaffected)

The AP7387-50Y-13 meets all these criteria and is classified as a parametric equivalent. The primary distinction lies in the supplier device package designation (SOT-89-3 versus SOT-89R-3) and PSRR specification availability.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7387-50YR-13 and AP7387-50Y-13 are Active products from Diodes Incorporated with identical electrical performance specifications. Selection between these parts is based on packaging and supply availability:

The AP7387-50YR-13 is supplied in Tape & Reel (TR) format with SOT-89R-3 package designation and maintains 978 units in current inventory.

The AP7387-50Y-13 is supplied in Tape & Reel (TR) format with SOT-89-3 package designation and maintains 5528 units in current inventory.

Both parts satisfy ROHS3 compliance and REACH Unaffected regulatory requirements. The AP7387-50Y-13 provides documented PSRR performance at 70dB (1kHz), while the AP7387-50YR-13 does not specify this parameter. Selection should account for application requirements regarding power supply rejection ratio and component availability timelines.

Frequently Asked Questions (FAQ)

Q: Can the AP7387-50Y-13 directly replace the AP7387-50YR-13 in existing designs?

A: Yes. Both parts deliver identical electrical performance: 5V fixed output, 150mA maximum current, 1.35V dropout voltage, and 4 µA quiescent current. The primary difference is the supplier device package designation (SOT-89-3 versus SOT-89R-3). Mechanical compatibility with PCB footprints designed for TO-243AA packages is maintained.

Q: What is the significance of the package designation difference (SOT-89R-3 versus SOT-89-3)?

A: The "R" designation in SOT-89R-3 typically indicates a reel-specific variant or manufacturing process revision. Both packages conform to the TO-243AA case outline. Consult the respective datasheets for detailed mechanical drawings to confirm footprint compatibility with your specific PCB design.

Q: Are there compliance or certification differences between these parts?

A: Both parts are ROHS3 Compliant and REACH Unaffected. No compliance or certification differences exist between the AP7387-50YR-13 and AP7387-50Y-13.

Q: Why does the AP7387-50Y-13 specify PSRR while the AP7387-50YR-13 does not?

A: PSRR (Power Supply Rejection Ratio) is a measured performance characteristic. The AP7387-50Y-13 datasheet documents this parameter at 70dB (1kHz). The AP7387-50YR-13 specification sheet does not include this measurement. Both parts employ identical circuit topology and are expected to exhibit equivalent PSRR performance.

Q: Which part should be selected for new designs?

A: Selection is based on supply chain availability and packaging requirements. The AP7387-50Y-13 currently maintains higher inventory (5528 units) compared to the AP7387-50YR-13 (978 units). Both are Active products suitable for new designs requiring 5V, 150mA linear voltage regulation in compact surface-mount packages.