RT9183-25GLF Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The RT9183-25GLF is an active linear voltage regulator IC from Richtek USA Inc., classified as a Power Management (PMIC) component. This positive fixed output regulator delivers 1.5A at a fixed 2.5V output and operates across an input voltage range up to 5.5V. The device is housed in a TO-252-3 (DPAK) surface mount package and is currently in active production status with 692 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

RT9183-25GLF

Richtek USA Inc.In Stock: 702RT9183-25GLF Datasheet

Current PartRFQ

AP7363-25D-13

Diodes IncorporatedIn Stock: 945AP7363-25D-13 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT9183-25GLF are identified based on strict equivalence of the following critical parameters:

• Output voltage: Fixed 2.5V
• Output current capability: 1.5A minimum
• Input voltage maximum: 5.5V or greater
• Package type: TO-252-3 (DPAK) surface mount
• Output configuration: Positive fixed output
• Protection features: Over Current and Over Temperature protection
• Product status: Active production

The AP7363-25D-13 from Diodes Incorporated meets all substitution criteria within these electrical and mechanical constraints. Both devices share identical output voltage, current rating, input voltage specification, and package configuration. Differences in quiescent current, dropout voltage, and operating temperature range do not disqualify substitution when the application requirements fall within the AP7363-25D-13 specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the RT9183-25GLF and AP7363-25D-13 are active production devices with ROHS3 compliance and REACH unaffected status. Selection between these parts depends on application-specific requirements:

The RT9183-25GLF operates across a wider temperature range (-40°C to 125°C) and exhibits lower quiescent current (500 µA), making it suitable for applications requiring extended thermal performance or minimal standby power consumption.

The AP7363-25D-13 provides superior dropout voltage performance (0.24V versus 0.5V at 1.5A) and lower moisture sensitivity (MSL 1 versus MSL 3), offering advantages in low-input-voltage applications and high-humidity storage or assembly environments. The AP7363-25D-13 is available in Tape & Reel packaging, suitable for automated assembly processes.

Both devices maintain identical electrical output specifications (2.5V fixed, 1.5A maximum output current) and identical mechanical compatibility (TO-252-3 package). Selection should be based on thermal operating range requirements, dropout voltage constraints, and packaging format availability for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the AP7363-25D-13 directly replace the RT9183-25GLF in existing designs?

A: Yes, direct replacement is possible when the application operating temperature does not exceed 85°C. Both devices share identical output voltage (2.5V), output current rating (1.5A), input voltage specification (5.5V maximum), and TO-252-3 package configuration. PCB layout and thermal management remain unchanged.

Q: What is the significance of the different dropout voltage specifications?

A: The AP7363-25D-13 exhibits 0.24V dropout at 1.5A compared to 0.5V for the RT9183-25GLF. Lower dropout voltage allows the AP7363-25D-13 to maintain regulation with lower input voltages or higher input-to-output voltage differentials. This parameter is critical in applications operating near the 5.5V input maximum.

Q: How do the quiescent current differences affect circuit design?

A: The RT9183-25GLF draws 500 µA quiescent current versus 1.2 mA for the AP7363-25D-13. In battery-powered or low-power standby applications, the RT9183-25GLF provides lower standby power consumption. For typical powered applications, this difference is negligible relative to load current.

Q: Are there packaging considerations for production assembly?

A: The RT9183-25GLF is supplied in bulk packaging, while the AP7363-25D-13 is available in Tape & Reel format. Tape & Reel packaging is optimized for automated pick-and-place assembly. Bulk packaging may require manual handling or custom reel preparation.

Q: What is the impact of different moisture sensitivity levels?

A: The RT9183-25GLF has MSL 3 (168-hour floor life), while the AP7363-25D-13 has MSL 1 (unlimited floor life). MSL 3 components require baking before reflow soldering if exposed to ambient humidity for extended periods. MSL 1 components have no floor life restrictions, reducing handling and storage complexity.

Q: Can the AP7363-25D-13 be used in applications requiring operation above 85°C?

A: No. The AP7363-25D-13 is specified for -40°C to 85°C operation. Applications requiring operation above 85°C must use the RT9183-25GLF, which is rated to 125°C.