RT9198-15GV Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The RT9198-15GV is an active linear voltage regulator IC manufactured by Richtek USA Inc., designed for positive fixed 1.5V output applications with 300mA current capacity. This Surface Mount device in SOT-23-3 package is classified as Power Management (PMIC) and maintains Active product status. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the linear regulator category.

Substiute Parts

RT9198-15GV

Richtek USA Inc.In Stock: 24568RT9198-15GV Datasheet

Current PartRFQ

AP130-15RG-7

Diodes IncorporatedIn Stock: 3190AP130-15RG-7 Datasheet

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AP2127N-1.5TRG1

Diodes IncorporatedIn Stock: 1163AP2127N-1.5TRG1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT9198-15GV are qualified based on the following critical parameters:

• Output voltage matching: 1.5V fixed output
• Output current capability: 300mA minimum
• Input voltage compatibility: Maximum input voltage of 5.5V or greater
• Package compatibility: SOT-23-3 or equivalent mechanical footprint (SC-59, TO-236-3)
• Surface Mount technology requirement
• Positive output configuration
• Fixed output type
• Regulatory compliance: ROHS3 Compliant status

The identified substitute parts meet these core electrical and mechanical criteria, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and ROHS3 compliance, qualifying them for equivalent substitution in applications requiring 1.5V fixed output at 300mA.

The RT9198-15GV offers the lowest dropout voltage specification (0.33V @ 300mA) and extended operating temperature range (-40°C ~ 125°C), making it suitable for applications with tight thermal margins or high-temperature environments.

The AP130-15RG-7 provides moderate dropout voltage (0.5V @ 300mA) with reduced quiescent current (100 µA) and is packaged in SC-59R tape and reel format. Operating temperature range is -40°C ~ 85°C.

The AP2127N-1.5TRG1 features the highest input voltage rating (6V maximum), lowest quiescent current (90 µA), and superior PSRR performance (68dB ~ 54dB across 100Hz ~ 10kHz). Operating temperature range is -40°C ~ 85°C, with SOT-23-3 package compatibility.

Frequently Asked Questions (FAQ)

Q: Can AP130-15RG-7 replace RT9198-15GV directly?

A: Yes. Both devices provide 1.5V fixed output at 300mA with SOT-23-3 compatible packaging (SC-59 footprint). The AP130-15RG-7 has higher dropout voltage (0.5V vs 0.33V) and lower maximum operating temperature (85°C vs 125°C), which must be evaluated against application requirements.

Q: What is the package compatibility between these parts?

A: RT9198-15GV and AP2127N-1.5TRG1 use SOT-23-3 package. AP130-15RG-7 uses SC-59R package. All three are mechanically compatible with TO-236-3 footprints, enabling PCB-level substitution.

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

A: AP2127N-1.5TRG1 has the lowest quiescent current (90 µA) and highest PSRR specification, optimizing for low-power and noise-sensitive circuits.

Q: Are there temperature limitations when substituting?

A: RT9198-15GV operates to 125°C; both Diodes substitutes operate to 85°C maximum. Applications requiring extended temperature operation must retain the RT9198-15GV.

Q: Do all parts have equivalent protection features?

A: RT9198-15GV and AP2127N-1.5TRG1 include Over Current and Over Temperature protection. AP130-15RG-7 adds Short Circuit protection. All meet protection requirements for standard linear regulator applications.