RT9001-33GG Equivalent & Substitute Parts

Part Overview

The RT9001-33GG is a linear voltage regulator IC manufactured by Richtek USA Inc., designed to provide a fixed 3.3V output at up to 600mA. This positive fixed output regulator operates across an input voltage range up to 5.5V and is housed in a SOT-223 surface mount package. The device is currently in active production status with 871 pieces available in inventory. Alternative equivalent parts are necessary when primary stock is unavailable, when supply chain constraints occur, or when design flexibility across multiple qualified suppliers is required.

Substiute Parts

RT9001-33GG

Richtek USA Inc.In Stock: 881RT9001-33GG Datasheet

Current PartRFQ

AP7365-33ERG-13

Diodes IncorporatedIn Stock: 8142AP7365-33ERG-13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT9001-33GG is determined by the following critical parameters that must remain equivalent:

• Fixed output voltage of 3.3V
• Minimum output current capability of 600mA
• Surface mount SOT-223 package compatibility
• Positive fixed output configuration
• Over current and over temperature protection features
• ROHS3 compliance and REACH unaffected status
• Active product status

The AP7365-33ERG-13 manufactured by Diodes Incorporated meets these core substitution criteria. Both devices provide identical output voltage and current specifications, share the same package footprint, and maintain equivalent protection features and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the RT9001-33GG and AP7365-33ERG-13 are active production devices with ROHS3 compliance and REACH unaffected status, making them suitable for equivalent substitution in applications requiring a 3.3V fixed output linear regulator at 600mA.

The AP7365-33ERG-13 offers improved performance characteristics including lower quiescent current (80 µA versus 300 µA), lower dropout voltage (0.4V versus 0.58V), and higher PSRR (65dB versus 55dB). The AP7365-33ERG-13 also features superior moisture sensitivity rating (MSL 1 versus MSL 3), indicating better handling characteristics during storage and assembly.

The RT9001-33GG supports a higher maximum input voltage (5.5V versus 6V) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). Selection between these devices should be based on specific application requirements regarding input voltage range, operating temperature limits, and power dissipation constraints.

Frequently Asked Questions (FAQ)

Q: Can the AP7365-33ERG-13 directly replace the RT9001-33GG in existing designs?

A: Yes. Both devices provide identical 3.3V fixed output at 600mA, share the same SOT-223 package footprint (TO-261-4, TO-261AA), and include equivalent over current and over temperature protection. Pin-to-pin compatibility is maintained.

Q: What are the key differences between these two regulators?

A: The AP7365-33ERG-13 provides lower quiescent current consumption (80 µA versus 300 µA), lower dropout voltage (0.4V versus 0.58V), and higher power supply rejection ratio (65dB versus 55dB). The RT9001-33GG supports higher maximum input voltage (5.5V versus 6V) and extended operating temperature range to 125°C.

Q: Are there package compatibility concerns?

A: Both devices use SOT-223 surface mount packages with identical TO-261-4 and TO-261AA case designations. The AP7365-33ERG-13 uses SOT-223R variant while the RT9001-33GG uses standard SOT-223, but both are mechanically and electrically compatible for PCB placement.

Q: What is the significance of the MSL rating difference?

A: The AP7365-33ERG-13 has MSL 1 (unlimited moisture exposure) compared to the RT9001-33GG MSL 3 (168 hours). This indicates the AP7365-33ERG-13 has superior moisture resistance and requires less stringent handling during storage and assembly processes.

Q: Which device should be selected for high-temperature applications?

A: The RT9001-33GG supports operating temperatures up to 125°C, making it suitable for high-temperature environments. The AP7365-33ERG-13 is rated to 85°C maximum.

Q: Which device is better for low-power applications?

A: The AP7365-33ERG-13 is preferable for low-power designs due to its significantly lower quiescent current (80 µA versus 300 µA), reducing standby power consumption.