RT9013-13GU5 Equivalent & Substitute Parts

Part Overview

The RT9013-13GU5 is a linear voltage regulator IC from Richtek USA Inc. designed for positive fixed output applications. This Surface Mount device delivers 1.3V at 500mA output with a maximum dropout voltage of 0.4V, making it suitable for low-voltage power management in compact form factors. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design flexibility, or supply chain optimization.

Substiute Parts

RT9013-13GU5

Richtek USA Inc.In Stock: 938RT9013-13GU5 Datasheet

Current PartRFQ

LP5951MG-1.3/NOPB

Texas InstrumentsIn Stock: 2240LP5951MG-1.3/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT9013-13GU5 is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use SC-70-5 (5-TSSOP, SOT-353) surface mount packaging to ensure PCB footprint compatibility.
• Output Voltage: Fixed 1.3V output is the primary functional requirement.
• Output Configuration: Positive fixed output topology.
• Input Voltage Range: Maximum input voltage of 5.5V or greater.
• Control Features: Enable function presence.
• Protection Features: Over Current and Over Temperature protection minimum.
• Compliance: ROHS3 compliance and Active product status.

The LP5951MG-1.3/NOPB from Texas Instruments meets these substitution criteria. While the LP5951 has a lower maximum output current (150mA versus 500mA), it maintains electrical compatibility for applications within its current rating and shares identical package, voltage output, and control feature specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the RT9013-13GU5 and LP5951MG-1.3/NOPB are Active products with ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements. Selection between these parts depends on application current requirements: the RT9013-13GU5 supports 500mA output, while the LP5951MG-1.3/NOPB is rated for 150mA maximum output. The LP5951 offers extended operating temperature range (-40°C to 125°C versus -85°C) and includes Short Circuit protection in addition to Over Current and Over Temperature protection. Both devices share identical SC-70-5 packaging, 1.3V fixed output, and Enable control features, ensuring functional compatibility within current specifications.

Frequently Asked Questions (FAQ)

Q: Can the LP5951MG-1.3/NOPB directly replace the RT9013-13GU5 in all applications?

A: Direct replacement is valid only for applications requiring 150mA or less output current. The LP5951MG-1.3/NOPB is not suitable for designs requiring the full 500mA output capability of the RT9013-13GU5.

Q: Are the packages physically identical?

A: Yes. Both parts use the 5-TSSOP SC-70-5 (SOT-353) package, ensuring identical PCB footprint and mounting compatibility.

Q: What are the key electrical differences?

A: The primary difference is maximum output current: RT9013-13GU5 provides 500mA while LP5951MG-1.3/NOPB provides 150mA. The LP5951 has lower dropout voltage (0.35V @ 150mA) and higher PSRR performance. Operating temperature ranges differ: RT9013-13GU5 operates to 85°C, LP5951MG-1.3/NOPB to 125°C.

Q: Do both parts have the same control and protection features?

A: Both include Enable control and Over Current/Over Temperature protection. The LP5951MG-1.3/NOPB adds Short Circuit protection.

Q: Are there compliance or supply chain considerations?

A: Both parts are ROHS3 compliant, REACH Unaffected, and Active status. The LP5951MG-1.3/NOPB is supplied in Tape & Reel packaging with MSL 1 (Unlimited), while RT9013-13GU5 has MSL 3 (168 Hours).