TPS54336DRCR Equivalent & Substitute Parts

Part Overview

The TPS54336DRCR is a buck switching regulator IC from Texas Instruments' SWIFT™ series, designed for positive adjustable output applications. It delivers 3A output current with an input voltage range of 4.5V to 28V and adjustable output from 0.8V to 25V. The device operates at 340kHz switching frequency with integrated synchronous rectification in a 10-VFDFN exposed pad package.

The TPS54336DRCR is classified as obsolete. Equivalent substitute parts are available in active product status with maintained electrical specifications and alternative packaging options, enabling continued system design and production support.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Function	Step-Down (Buck)
Output Configuration	Positive Adjustable
Number of Outputs	1
Voltage - Input (Min)	4.5V
Voltage - Input (Max)	28V
Voltage - Output (Min/Fixed)	0.8V
Current - Output	3A
Frequency - Switching	340kHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the TPS54336DRCR are identified based on the following core electrical and mechanical parameters:

Electrical Compatibility Criteria:

Input voltage range: 4.5V to 28V
Output configuration: Positive adjustable
Minimum output voltage: 0.8V
Output current: 3A
Switching frequency: 340kHz
Synchronous rectification: Enabled
Operating temperature range: -40°C ~ 85°C

Mechanical Compatibility Criteria:

Mounting type: Surface Mount
Manufacturer: Texas Instruments
Base product number: TPS54336
Compliance: ROHS3, REACH Unaffected

Substitutes are grouped by package type. The TPS54336ADRCT maintains the original 10-VFDFN package with improved product status (Active) and enhanced moisture sensitivity rating. The TPS54336ADDAR provides an alternative 8-PowerSOIC package option while preserving all core electrical specifications.

Parameter Comparison

Parameter	TPS54336DRCR	TPS54336ADRCT	TPS54336ADDAR
Product Status	Obsolete	Active	Active
Voltage - Input (Min)	4.5V	4.5V	4.5V
Voltage - Input (Max)	28V	28V	28V
Voltage - Output (Min/Fixed)	0.8V	0.8V	0.8V
Voltage - Output (Max)	25V	24V	24V
Current - Output	3A	3A	3A
Frequency - Switching	340kHz	340kHz	340kHz
Synchronous Rectifier	Yes	Yes	Yes
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	10-VFDFN Exposed Pad	10-VFDFN Exposed Pad	8-PowerSOIC (0.154", 3.90mm Width)
Supplier Device Package	10-VSON (3x3)	10-VSON (3x3)	8-SO PowerPad
Moisture Sensitivity Level (MSL)	2 (1 Year)	1 (Unlimited)	2 (1 Year)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

TPS54336ADRCT is the primary substitute for the obsolete TPS54336DRCR. It maintains identical package geometry (10-VFDFN), electrical specifications, and operating parameters. The TPS54336ADRCT carries Active product status with improved moisture sensitivity rating (MSL 1, Unlimited shelf life versus MSL 2, 1 Year), providing superior long-term storage and supply chain reliability. This part is available in Tape & Reel packaging with 18,550 units in stock.

TPS54336ADDAR serves as an alternative substitute when 8-PowerSOIC package compatibility is required. It delivers identical electrical performance and operating characteristics but uses a different package footprint (8-PowerSOIC versus 10-VFDFN). This option is suitable for designs where PCB layout constraints or thermal management requirements favor the 8-pin PowerSOIC form factor. The TPS54336ADDAR is available in Cut Tape and Digi-Reel® packaging with 5,300 units in stock.

Both substitutes are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. Selection between TPS54336ADRCT and TPS54336ADDAR depends on package compatibility with existing PCB designs and thermal dissipation requirements.

Frequently Asked Questions (FAQ)

Q: Can TPS54336ADRCT directly replace TPS54336DRCR without PCB modification?

A: Yes. The TPS54336ADRCT uses the identical 10-VFDFN package footprint, pinout, and electrical specifications. No PCB layout changes are required for direct substitution.

Q: What is the difference between TPS54336ADRCT and TPS54336ADDAR?

A: The primary difference is package type. TPS54336ADRCT uses 10-VFDFN (3x3mm), while TPS54336ADDAR uses 8-PowerSOIC (0.154" width, 3.90mm). Electrical specifications are equivalent. Package selection depends on PCB design constraints and thermal requirements.

Q: Why is the maximum output voltage different between TPS54336DRCR (25V) and the substitutes (24V)?

A: The maximum output voltage specification differs between the obsolete and active variants. Designs operating at or near 25V output should be evaluated for compatibility with the 24V maximum rating of the substitute parts.

Q: Are there inventory differences between the substitute parts?

A: Yes. TPS54336ADRCT has 18,550 units in stock (Tape & Reel packaging), while TPS54336ADDAR has 5,300 units in stock (Cut Tape and Digi-Reel® packaging). Availability may influence selection for high-volume production requirements.

Q: What is the moisture sensitivity difference between the parts?

A: TPS54336DRCR and TPS54336ADDAR are rated MSL 2 (1 Year shelf life). TPS54336ADRCT is rated MSL 1 (Unlimited shelf life), providing superior storage stability and reduced risk of moisture-related failures during extended warehousing.

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