ProductsPower ManagementTPS54331DDA
PACKAGE REFERENCEHSOIC-8Confirm case, pinout and ordering suffix before purchase.
MANUFACTURER PART RECORD

TPS54331DDA

Texas Instruments

TPS54331DDA is a Texas Instruments TPS54331 3 A SWIFT step-down converter in HSOIC-8 with PowerPAD, tube packaging — 3.5 V to 28 V input, adjustable output down to 0.8 V, fixed 570 kHz switching, integrated 80 milliohm high-side MOSFET, pulse-skipping Eco-mode for light-load efficiency, adjustable soft-start and programmable UVLO, −40 °C to +150 °C junction. The DDA code is the selection point: the thermally enhanced PowerPAD package on tube — the exposed die pad solders to board copper and is the difference between a 3 A converter that survives a sealed enclosure and one that thermally shuts down. Selection advice: pick the DDA for prototypes and pre-production where the thermal design is still being proven — same footprint as the production DDAR reel code, so the layout carries over unchanged. Against the standard SOIC-8 TPS54331D, the PowerPAD version is the safe pick whenever full-current operation meets limited airflow. Non-synchronous: an external catch diode is required. Evidence: TI TPS54331 product page confirms the HSOIC PowerPAD option, 3.5–28 V, 3 A and 570 kHz. Match the full TPS54331DDA code. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

Power ManagementTPS54331HSOIC-8
MPN
TPS54331DDA
Manufacturer
Texas Instruments
Family
TPS54331
Package
HSOIC-8
Manufacturer channel coverage
Checked by RFQ
Data last checked
Commercial check required
Lifecycle
Active
PROCUREMENT DATA

Identity and sourcing requirements.

Manufacturer part number
TPS54331DDA
Manufacturer
Texas Instruments
Product family
TPS54331
Category
Power Management
Package reference
HSOIC-8
Manufacturer-channel report
Confirmed on request
Sourceics price status
Quoted for required quantity
Sourceics sourcing status
Supplier and stock verified during RFQ
Required order checks
Suffix, package, date code, lot, source and traceability
MANUFACTURER DATA REVIEW

Key technical specifications

Ordering-code highlights reviewed against official manufacturer documentation.

Package code
HSOIC (DDA)
Pin count
8
Operating temperature
-40 to 150 °C
Factory packaging
TUBE
Package quantity
75 pieces
Input voltage
3.5–28 V
Output voltage
0.8–25 V
Output current max
3 A
Source: Texas Instruments product data · Reviewed 2026-09-29
ORDER-CODE COMPARISON

Same series, different order codes.

TPS54331 is available in the following manufacturer order codes. They share the same TPS54331 design; the table highlights package, packing and ordering differences. Quote the exact code your BOM needs.

Order codePackagePackingKey difference
TPS54331DSOIC-8TUBESame SOIC-8 package as TPS54331DR; this difference alone does not require PCB pad changes; factory packing is TUBE, 75 per pack; TPS54331DR is LARGE T&R, 2,500 per pack.
TPS54331DDAHSOIC-8TUBEPackage/pins: HSOIC (DDA), 8 pins; TPS54331DR is SOIC (D), 8 pins; do not assume direct replacement — verify PCB pads, thermal and pinout; factory packing is TUBE, 75 per pack; TPS54331DR is LARGE T&R, 2,500 per pack.
TPS54331DDARHSOIC-8LARGE T&RPackage/pins: HSOIC (DDA), 8 pins; TPS54331DR is SOIC (D), 8 pins; do not assume direct replacement — verify PCB pads, thermal and pinoutt.
TPS54331DRSOIC-8——
SELECTION GUIDANCE

TPS54331DDA selection guidance

TPS54331DDA is a TPS54331 from Texas Instruments, orderable in the HSOIC-8 package. The ordering code fixes the exact configuration you receive — package, grade and packing — so procurement starts with matching this code character-for-character against your BOM, not just the base series name.

Within the same series, also consider: TPS54331D — package SOIC-8; packing TUBE; Same SOIC-8 package as TPS54331DR; this difference alone does not require PCB pad changes; factory packing is TUBE, 75 per pack; TPS54331DR is LARGE T&R, 2,500 per pack. · TPS54331DDAR — packing LARGE T&R; Package/pins: HSOIC (DDA), 8 pins; TPS54331DR is SOIC (D), 8 pins; do not assume direct replacement — verify PCB pads, thermal and pinoutt. · TPS54331DR — package SOIC-8. These variants share the core design; pick the code whose package and packing match your assembly process and reel requirements. If your BOM lists one of these instead of TPS54331DDA, do not substitute without checking the exact ordering code — even one suffix character can change the device you receive.

When you request a quote, include the full ordering code, the target packing format (reel, tube, tray or cut tape), your quantity and any date-code or lot requirements. We reconfirm manufacturer, suffix, package, date code and traceability against the actual offered lot before any commercial quote is issued, and every RFQ gets a reply within 24 hours.

QUOTE WORKFLOW

Four checks before a commercial offer.

01

Identity

Exact MPN, manufacturer and suffix

02

Supply

Supplier type, quantity and freshness

03

Evidence

Lot, labels, photos and documents

04

Terms

Price, lead time, payment and shipping

RELATED REFERENCES

Explore more Power Management records

Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.

COMMON QUESTIONS

TPS54331DDA FAQ

What is the difference between TPS54331DDA and TPS54331D, TPS54331DDAR, TPS54331DR?

These are order-code variants of the same Texas Instruments series. They share the core design; the ordering code selects the exact configuration — TPS54331D: Same SOIC-8 package as TPS54331DR; this difference alone does not require PCB pad changes; factory packing is TUBE, 75 per pack; TPS54331DR is LARGE T&R, 2,500 per pack.; TPS54331DDAR: Package/pins: HSOIC (DDA), 8 pins; TPS54331DR is SOIC (D), 8 pins; do not assume direct replacement — verify PCB pads, thermal and pinoutt.; TPS54331DR (SOIC-8). TPS54331DDA itself is the HSOIC-8 configuration. A code that differs by even one character may be a different device, so always quote the complete code exactly as it appears on your BOM.

What is the difference between package and packing for TPS54331DDA?

The package (HSOIC-8) is the physical form of the device itself. Packing describes how the devices are delivered — reel, tube, tray or cut tape. The same ordering code can ship in different packing formats depending on the lot, so confirm the required packing format when you submit your RFQ.

Can you provide traceability documents for TPS54331DDA?

Traceability evidence — lot and date-code information, labels and photos — is confirmed per lot at quotation time, because it depends on the actual lot offered. Tell us which documents your receiving inspection requires when you submit the RFQ, and we will confirm what can be provided for the offered lot.

How do I request a quotation for TPS54331DDA?

Add TPS54331DDA to your RFQ with the complete ordering code, the manufacturer (Texas Instruments), your quantity, the target packing format and any date-code requirements. We reply to every RFQ within 24 hours.