TPS5403DR vs TPS5450DDAR

This in-depth comparison of the TPS5403DR and TPS5450DDAR provides valuable insights into their specifications and key features. We cover important factors in detail, including RoHS compliance, REACH status, series, mounting style, package type, and other relevant characteristics. Presenting the differences side by side simplifies component selection, making it easier for you to select the best option for your specific application.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Parts at a glance

Part A

TPS5403DR

Texas Instruments

Lifecycle: Active
Stock: 7535 PCS
Package: SOIC-8
Series: PMIC - Voltage Regulators - DC DC Switching Regulators

+BOM RFQ

Part B

TPS5450DDAR

Texas Instruments

Lifecycle: Active
Stock: 2693 PCS
Package: SOIC-8
Series: PMIC - Voltage Regulators - DC DC Switching Regulators

+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification	TPS5403DR	TPS5450DDAR
Part Status	Active	Active
Function	Step-Down	Step-Down
Output Configuration	Positive	Positive
Topology	Buck	Buck
Output Type	Fixed	Adjustable
Number of Outputs	1	1
Voltage - Input (Min)	4.5V	5.5V
Voltage - Input (Max)	28V	36V
Voltage - Output (Min/Fixed)	3.3V	1.221V
Current - Output	1.7A	5A
Frequency - Switching	50kHz ~ 1.1MHz	500kHz
Synchronous Rectifier	No	No
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Voltage - Output (Max)	-	31.32V

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