MPNHarborRFQ 0
Exact MPN19 sourced attributes1 source document

Texas Instruments · exact orderable part

TPS5430DDA

Texas Instruments 5.5 V to 36 V, 3 A, 500 kHz step-down converter in the thermally enhanced eight-pin DDA package.

Minimum Input Voltage
5.5 V
Maximum Input Voltage
36 V
Output Current
3 A
Minimum Adjustable Output Voltage
1.22 V
Maximum Adjustable Output Voltage
31 V
Typical Switching Frequency
500 kHz
Original manufacturerCommercial terms confirmed per lot
ManufacturerTexas Instruments
Package / caseHSOIC8 PowerPAD (DDA)
Mounting typesurface mount
Lifecycleactive
PackingTube or reel suffix confirmed at quotation
Temperature gradeTj -40 to 125 °C

Technical parameters

Technical specifications

19 normalized values · 1 manufacturer source

Report a data issue
ParameterValue
TopologyBuck [1]
Minimum Input Voltage5.5 V [1]
Maximum Input Voltage36 V [1]
Output Current3 A [1]
Package / CaseHSOIC8 PowerPAD (DDA) [1]
Minimum Adjustable Output Voltage1.22 V [1]
Maximum Adjustable Output Voltage31 V [1]
Typical Switching Frequency500 kHz [1]
Typical Quiescent Current2 mA [1]
Maximum Duty Cycle87 % [1]
Typical Power-Switch On Resistance100 mΩ [1]
Maximum Reported Efficiency95 % [1]
Operating Junction Temperature-40 to 125 °C [1]
Junction-to-Ambient Thermal Resistance42.3 °C/W [1]
Pin Count8 [1]
Thermal ShutdownYes [1]
Current LimitYes [1]
Enable / Shutdown ControlYes [1]
Output Overvoltage ProtectionYes [1]
Specification references[1]Texas Instruments TPS543x Datasheet, SLVS632L, revised April 2026 ↗

Product overview

TPS5430DDA at a glance

TPS5430DDA is a Texas Instruments non-synchronous buck converter for 5.5 V to 36 V inputs and up to 3 A output. This exact order code uses the thermally enhanced eight-pin DDA PowerPAD package and operates at a fixed 500 kHz switching frequency.

Key features

Verified device capabilities

  • 5.5 V to 36 V documented input range
  • Up to 3 A documented output current
  • Fixed 500 kHz switching frequency
  • 1.22 V to 31 V documented output-voltage range
  • Eight-pin DDA PowerPAD package with a documented 42.3 °C/W junction-to-ambient thermal-resistance value
  • Integrated current limiting, thermal shutdown, enable control and output-overvoltage protection

Applications

Where the device is used

  • Non-isolated step-down rails whose input, output-current and thermal requirements fit the documented TPS5430DDA limits.

Ordering information

Exact code and packing

Request TPS5430DDA for the DDA tube order code; TPS5430DDAR is the separate reel carrier code.

Include quantity, destination and the required carrier format in the RFQ so tube and reel offers are not mixed.

Design notes

Use the rating in context

The DDA PowerPAD and surrounding copper layout are part of the thermal design; validate dissipation and junction temperature for the actual conversion conditions.

The 3 A headline current is not a guarantee for every input/output combination; confirm duty cycle, switching losses, inductor current and thermal margin from the cited datasheet.

Quotation and fulfillment

What is confirmed before an order

Commercial facts belong to the quoted lot. The catalog does not invent live stock, price, date code or lead time.

01

Exact-part check

Manufacturer, full suffix, package, quantity and requested documentation are captured in the RFQ.

02

Lot-level quotation

Price, available quantity, date code, condition and lead time are written into the quotation when confirmed.

03

Inspection request

Label, marking, packing and traceability requirements can be specified before shipment.

04

Shipping and payment

Shipping method, Incoterm and available payment route are agreed in the commercial offer.

Technical and ordering FAQ

Questions buyers ask about TPS5430DDA

Answers distinguish the IC itself from assembled modules and keep absolute limits separate from normal operating conditions.

What input range is documented for TPS5430DDA?

The controlled TI datasheet lists a 5.5 V to 36 V input range.

Does TPS5430DDA identify reel packaging?

No. TPS5430DDA is the DDA tube order code in this record; TPS5430DDAR is the separate reel carrier code.

What switching frequency does TPS5430DDA use?

The documented fixed switching frequency is 500 kHz.

Catalog relationships

Keep family and exact MPN intent separate.

This page describes one orderable part. A family page helps select suffixes but never carries assumed stock or a price.

ManufacturerTexas InstrumentsView brand page →CategoryDC-DC ConvertersView category page →Part familyTPS5430Compare exact variants →

Ready to source

Request TPS5430DDA by quantity

Send the exact MPN, quantity and any date-code, packing or documentation requirements. You can also add more lines or upload a BOM.