RT9728BLGE Equivalent & Substitute Parts

Part Overview

The RT9728BLGE is an active Power Management Integrated Circuit (PMIC) functioning as a P-Channel power switch with 1:1 configuration. This USB Switch device is designed for high-side load switching applications requiring current limiting, over-temperature protection, and reverse current blocking. The part is currently in active production status with 1062 units available in new original inventory. Alternative part numbers are necessary to address supply chain flexibility, packaging format preferences, and inventory availability across distribution channels.

Substiute Parts

RT9728BLGE

Richtek USA Inc.In Stock: 1077RT9728BLGE Datasheet

Current PartRFQ

RT9728BHGE

Richtek USA Inc.In Stock: 3409RT9728BHGE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT9728BLGE is determined by strict equivalence across the following critical parameters:

• Switch Type: USB Switch
• Output Configuration: High Side
• Output Type: P-Channel
• Number of Outputs: 1
• Ratio - Input:Output: 1:1
• Voltage - Load: 2.5V ~ 5.5V
• Current - Output (Max): 1.8A
• Rds On (Typ): 120mOhm
• Input Type: Non-Inverting
• Interface: On/Off
• Fault Protection: Current Limiting (Adjustable), Over Temperature, Reverse Current, UVLO
• Operating Temperature: -40°C ~ 125°C (TJ)
• Package / Case: SOT-23-6
• Mounting Type: Surface Mount
• Product Status: Active

The RT9728BHGE qualifies as a parametric equivalent substitute. Both parts share identical electrical specifications, thermal ratings, protection features, and physical packaging. The primary distinction is packaging format: RT9728BLGE is supplied in standard packaging, while RT9728BHGE is available in Cut Tape (CT) and Digi-Reel® formats.

Parameter Comparison

Engineering Selection Recommendations

Both RT9728BLGE and RT9728BHGE are active production parts from Richtek USA Inc. with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on packaging and supply requirements:

• RT9728BLGE: Select when standard packaging format is required or specified in procurement documentation.
• RT9728BHGE: Select when Cut Tape or Digi-Reel® packaging formats are required for automated assembly processes or when higher inventory availability is needed. This part number currently has 3300 units in stock compared to 1062 units for RT9728BLGE.

Both parts maintain identical electrical performance, thermal characteristics, and protection features. No functional differences exist between these substitutes.

Frequently Asked Questions (FAQ)

Q: Can RT9728BHGE be used as a direct replacement for RT9728BLGE in production?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, current ratings, voltage ranges, on-resistance, protection features, and operating temperature ranges. The only difference is packaging format.

Q: What is the difference between the packaging formats?

A: RT9728BLGE uses standard packaging, while RT9728BHGE is supplied in Cut Tape (CT) and Digi-Reel® formats. Cut Tape and Digi-Reel® formats are optimized for automated pick-and-place assembly equipment.

Q: Are there any thermal or electrical performance differences?

A: No. Both parts have identical Rds On (120mOhm typical), maximum output current (1.8A), operating temperature range (-40°C ~ 125°C), and fault protection features.

Q: Do both parts meet the same compliance standards?

A: Yes. Both RT9728BLGE and RT9728BHGE are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings of 3 (168 Hours).

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection should be based on packaging requirements and supply chain preferences. RT9728BHGE offers higher current inventory availability.