RT9183-12GL Equivalent & Substitute Parts

Part Overview

The RT9183-12GL is a linear voltage regulator IC from Richtek USA Inc. designed for positive fixed 1.2V output at 1.5A in a TO-252-3 surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The device provides regulated 1.2V output with integrated over-current and over-temperature protection, suitable for applications requiring stable low-voltage power delivery.

Key Parameters

Parameter	Value
Manufacturer Part Number	RT9183-12GL
Manufacturer	Richtek USA Inc.
Category	Power Management (PMIC)
Output Voltage (Fixed)	1.2V
Output Current	1.5A
Input Voltage (Max)	5.5V
Voltage Dropout (Max)	0.5V @ 1.5A
Quiescent Current	500 µA
Package / Case	TO-252-3 (DPAK)
Operating Temperature	-40°C ~ 125°C
Protection Features	Over Current, Over Temperature
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the RT9183-12GL are identified based on strict electrical and mechanical parameter matching:

Parametric Equivalents share identical electrical specifications including output voltage (1.2V fixed), output current (1.5A), input voltage maximum (5.5V), quiescent current (500 µA), package type (TO-252-3), and operating temperature range (-40°C ~ 125°C).

Similar Alternatives maintain the same output voltage, output current, input voltage maximum, package type, and mounting configuration, but may differ in voltage dropout characteristics, quiescent current, operating temperature range, or product status. These parts are functionally compatible for the specified output voltage and current requirements.

The key parameters determining substitution eligibility are: fixed output voltage (1.2V), output current rating (1.5A), maximum input voltage (5.5V), TO-252-3 package compatibility, and surface mount mounting type.

Parameter Comparison

Parameter	RT9183-12GL (Main)	RT9183-12GLF (Parametric Equivalent)	AP7363-12D-13 (Similar Alternative)
Manufacturer	Richtek USA Inc.	Richtek USA Inc.	Diodes Incorporated
Product Status	Obsolete	Active	Active
Output Voltage (Fixed)	1.2V	1.2V	1.2V
Output Current	1.5A	1.5A	1.5A
Input Voltage (Max)	5.5V	5.5V	5.5V
Voltage Dropout (Max)	0.5V @ 1.5A	0.5V @ 1.5A	0.24V @ 1.5A
Quiescent Current	500 µA	500 µA	1.2 mA
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C
Package / Case	TO-252-3 (DPAK)	TO-252-3 (DPAK)	TO-252-3 (DPAK)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Protection Features	Over Current, Over Temperature	Over Current, Over Temperature	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)

Engineering Selection Recommendations

RT9183-12GLF is the primary substitute for RT9183-12GL. Both parts are manufactured by Richtek USA Inc. with identical electrical specifications. The RT9183-12GLF carries Active product status, ensuring ongoing availability and manufacturing support. This part is recommended for direct replacement in new designs and production continuity.

AP7363-12D-13 from Diodes Incorporated is a functionally compatible alternative. It maintains the same 1.2V fixed output, 1.5A output current, 5.5V maximum input voltage, and TO-252-3 package. The AP7363-12D-13 offers improved voltage dropout performance (0.24V versus 0.5V at 1.5A) and superior moisture sensitivity rating (MSL 1 versus MSL 3). However, the operating temperature range is limited to -40°C ~ 85°C compared to -40°C ~ 125°C for the RT9183-12GL. Selection of AP7363-12D-13 requires verification that the reduced upper temperature limit (-85°C maximum) is acceptable for the target application. All three parts maintain ROHS3 compliance and equivalent protection features.

Frequently Asked Questions (FAQ)

Q: Can RT9183-12GLF be used as a direct replacement for RT9183-12GL?

A: Yes. Both parts share identical electrical specifications including 1.2V fixed output, 1.5A output current, 0.5V maximum dropout voltage, 500 µA quiescent current, and -40°C ~ 125°C operating temperature range. The RT9183-12GLF is the active production equivalent with the same TO-252-3 package and protection features.

Q: What are the key differences between RT9183-12GL and AP7363-12D-13?

A: Both parts deliver 1.2V at 1.5A in TO-252-3 packages. The AP7363-12D-13 provides lower voltage dropout (0.24V versus 0.5V at 1.5A) and better moisture sensitivity (MSL 1 versus MSL 3). The AP7363-12D-13 operating temperature range is -40°C ~ 85°C, which is narrower than the RT9183-12GL range of -40°C ~ 125°C. Application requirements for maximum operating temperature must be evaluated before selection.

Q: Are all substitute parts in the same package?

A: Yes. RT9183-12GL, RT9183-12GLF, and AP7363-12D-13 all use the TO-252-3 (DPAK) surface mount package with identical pinout and footprint compatibility.

Q: Do all parts meet RoHS requirements?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory standards for electronic component manufacturing.

Q: Which substitute should be selected for new designs?

A: RT9183-12GLF is recommended for new designs as the active production equivalent from the original manufacturer. If the application does not require operation above 85°C, AP7363-12D-13 offers improved dropout voltage performance and better moisture handling characteristics.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message