RT7306GS LED Driver IC Equivalent & Substitute Parts

Part Overview

The RT7306GS is an AC DC offline switcher LED driver IC manufactured by Richtek USA Inc., designed for lighting applications. This single-output device operates across a 11V to 34V supply range and features analog dimming capability in an 8-SOP surface mount package. The part is currently active in production with 1550 units in stock inventory.

Equivalent and substitute parts are necessary when the primary RT7306GS is unavailable, when alternative sourcing is required for supply chain optimization, or when design flexibility permits selection from functionally compatible alternatives within the same electrical and mechanical parameter space.

Substiute Parts

RT7306GS

Richtek USA Inc.In Stock: 1643RT7306GS Datasheet

Current PartRFQ

RT7306DGS

Richtek USA Inc.In Stock: 10753RT7306DGS Datasheet

Parametric EquivalentRFQ

MP4050GS

Monolithic Power Systems Inc.In Stock: 1336MP4050GS Datasheet

SimilarRFQ

UCC28810DR

Texas InstrumentsIn Stock: 3636UCC28810DR Datasheet

SimilarRFQ

UCC28811D

Texas InstrumentsIn Stock: 3480UCC28811D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT7306GS is determined by the following critical parameters:

• Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure PCB layout compatibility without redesign.
• Electrical Classification: All parts must function as AC DC offline switcher LED driver ICs for lighting applications.
• Number of Outputs: Single-output configuration required.
• Supply Voltage Range: Parts must operate within or encompass the 11V to 34V supply specification.
• Dimming Capability: Dimming functionality (Analog or Triac) is required for lighting control compatibility.
• Compliance: All parts must maintain ROHS3 compliance and active product status.

The RT7306GS has one parametric equivalent (RT7306DGS) and three similar alternatives (MP4050GS, UCC28810DR, UCC28811D) that meet these substitution criteria with noted parameter variations.

Parameter Comparison

Engineering Selection Recommendations

RT7306DGS (Parametric Equivalent)

The RT7306DGS is the direct parametric equivalent to the RT7306GS. Both parts share identical electrical specifications, topology support, dimming type, and operating temperature range. The primary distinction is packaging format (8-SOP vs. 8-SOIC designation), which represents the same physical package. This part is suitable for direct substitution with 10,709 units in stock inventory.

MP4050GS (Similar Alternative)

The MP4050GS operates under different supply voltage parameters (85VAC to 265VAC input) compared to the RT7306GS (11V to 34V DC input). This part features an internal switch and supports only Step-Down (Buck) topology. Dimming capability is not specified. Selection of this part requires circuit design verification to confirm compatibility with the intended power supply architecture. Inventory: 1,228 units.

UCC28810DR (Similar Alternative)

The UCC28810DR is manufactured by Texas Instruments and supports multiple topologies including Flyback, SEPIC, Step-Down (Buck), and Step-Up (Boost). This part features an internal switch and Triac dimming capability. The maximum supply voltage is specified at 18V with output current of 750mA. Operating temperature range is -40°C to 105°C (TA), which is 20°C lower than the RT7306GS at the upper limit. Inventory: 3,600 units.

UCC28811D (Similar Alternative)

The UCC28811D is also manufactured by Texas Instruments with support for Flyback, Step-Down (Buck), and Step-Up (Boost) topologies. This part does not include an internal switch and features Triac dimming. Maximum supply voltage is 18V. Operating temperature range is -40°C to 105°C (TA). Inventory: 3,400 units.

All substitute parts maintain ROHS3 compliance and active product status, meeting regulatory and supply chain continuity requirements.

Frequently Asked Questions (FAQ)

Q: Can RT7306DGS be used as a direct replacement for RT7306GS?

A: Yes. The RT7306DGS is a parametric equivalent with identical electrical specifications, topology support, dimming type, and operating temperature range. The package designation difference (8-SOP vs. 8-SOIC) refers to the same physical 8-SOIC (0.154", 3.90mm Width) package. Direct substitution is supported without circuit modification.

Q: What are the key differences between the RT7306GS and the Texas Instruments alternatives (UCC28810DR and UCC28811D)?

A: The primary differences are: (1) Supply voltage maximum is 18V for TI parts versus 34V for RT7306GS, (2) Dimming type is Triac for TI parts versus Analog for RT7306GS, (3) Operating temperature upper limit is 105°C (TA) for TI parts versus 125°C (TJ) for RT7306GS, and (4) UCC28810DR includes an internal switch while UCC28811D does not. These differences require design verification before substitution.

Q: Is the MP4050GS suitable for direct substitution?

A: The MP4050GS operates with different input voltage specifications (85VAC to 265VAC) compared to the RT7306GS (11V to 34V). This part supports only Step-Down (Buck) topology and does not specify dimming capability. Substitution requires verification that the power supply architecture and dimming requirements are compatible with this alternative topology and input specification.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring PCB layout compatibility without redesign.

Q: What compliance certifications apply to all parts in this comparison?

A: All parts listed are ROHS3 compliant and maintain active product status. All parts are REACH unaffected and carry EAR99 ECCN classification.