ProductsPower ManagementLD1086D2M33TR
PACKAGE REFERENCED2PAKConfirm case, pinout and ordering suffix before purchase.
MANUFACTURER PART RECORD

LD1086D2M33TR

STMicroelectronics

LD1086D2M33TR is an STMicroelectronics LD1086 fixed 3.3 V low-dropout regulator — 1.5 A output, up to 30 V input, typical dropout 1.3 V at 1.5 A, ±1% output tolerance at 25 °C, in D2PAK-3, tape-and-reel packing (TR), -40 to +125 °C. Pin-to-pin compatibility with the older 3-terminal adjustable regulators is the selection point: a drop-in upgrade path from classic LM317-style layouts with better dropout and tolerance. Selection advice: the 1.5 A rating needs real copper — size the D2PAK thermal pad and board pours for your actual (Vin − 3.3 V) × Iout dissipation, or the thermal limit will throttle the rail. Only a 10 µF minimum output capacitor is needed for stability, and overcurrent plus thermal protection are built in. Note the automotive grade exists only for adjustable versions in TO-220/DPAK — this fixed 3.3 V D2PAK code is the standard catalog grade. Evidence: ST LD1086 datasheet and distributor listings confirm 1.5 A, 3.3 V fixed, 30 V max input, D2PAK and reel packing. Match the full LD1086D2M33TR code for voltage, package and packing. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

Power ManagementLD1086D2PAK
MPN
LD1086D2M33TR
Manufacturer
STMicroelectronics
Family
LD1086
Package
D2PAK
Manufacturer channel coverage
Checked by RFQ
Data last checked
Commercial check required
Lifecycle
Active
PROCUREMENT DATA

Identity and sourcing requirements.

Manufacturer part number
LD1086D2M33TR
Manufacturer
STMicroelectronics
Product family
LD1086
Category
Power Management
Package reference
D2PAK
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.

Output configuration
3.3 V
Output current class
1.5 A
Package
D2PAK
Order code
LD1086D2M33TR
Family
LD1086
Operating temperature
-40.0 to 125.0 °C
Source: STMicroelectronics product data · Reviewed 2026-09-29
ORDER-CODE COMPARISON

Same series, different order codes.

LD1086 is available in the following manufacturer order codes. They share the same LD1086 design; the table highlights package, packing and ordering differences. Quote the exact code your BOM needs.

Order codePackagePackingKey difference
LD1086BDTTRDPAK—Compared with LD1086DT33TR, this code specifies adjustable output and DPAK packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.
LD1086BV-DGTO-220—Compared with LD1086DT33TR, this code specifies adjustable output and TO-220 packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.
LD1086D2M33TRD2PAK—Compared with LD1086DT33TR, this code specifies 3.3 V output and D2PAK packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.
LD1086D2MTRD2PAK—Compared with LD1086DT33TR, this code specifies adjustable output and D2PAK packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.
LD1086D2T33TRD2PAKTape and reelFixed 3.3 V output
LD1086D2TTRD2PAK—Compared with LD1086DT33TR, this code specifies adjustable output and D2PAK packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.
LD1086DT33TRTO-252——
LD1086DT50TRDPAKTape and reelFixed 5.0 V output
LD1086DTTRDPAK—Compared with LD1086DT33TR, this code specifies adjustable output and DPAK packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.
LD1086PURDFN8 4x4—Compared with LD1086DT33TR, this code specifies adjustable output and DFN8 4x4 packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.
LD1086V-DGTO-220—Compared with LD1086DT33TR, this code specifies adjustable output and TO-220 packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.
LD1086V33-DGTO-220—Compared with LD1086DT33TR, this code specifies 3.3 V output and TO-220 packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.
SELECTION GUIDANCE

LD1086D2M33TR selection guidance

LD1086D2M33TR is a LD1086 from STMicroelectronics, orderable in the D2PAK 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: LD1086BDTTR — package DPAK; Compared with LD1086DT33TR, this code specifies adjustable output and DPAK packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review. · LD1086BV-DG — package TO-220; Compared with LD1086DT33TR, this code specifies adjustable output and TO-220 packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review. · LD1086D2MTR — Compared with LD1086DT33TR, this code specifies adjustable output and D2PAK packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review. · LD1086D2T33TR — packing Tape and reel; Fixed 3.3 V output. 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 LD1086D2M33TR, 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

LD1086D2M33TR FAQ

What is the difference between LD1086D2M33TR and LD1086BDTTR, LD1086BV-DG, LD1086D2MTR?

These are order-code variants of the same STMicroelectronics series. They share the core design; the ordering code selects the exact configuration — LD1086BDTTR: Compared with LD1086DT33TR, this code specifies adjustable output and DPAK packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.; LD1086BV-DG: Compared with LD1086DT33TR, this code specifies adjustable output and TO-220 packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.; LD1086D2MTR: Compared with LD1086DT33TR, this code specifies adjustable output and D2PAK packaging. An adjustable version needs an external setting network; a package change requires footprint and thermal review.. LD1086D2M33TR itself is the D2PAK 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 LD1086D2M33TR?

The package (D2PAK) 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 LD1086D2M33TR?

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 LD1086D2M33TR?

Add LD1086D2M33TR to your RFQ with the complete ordering code, the manufacturer (STMicroelectronics), your quantity, the target packing format and any date-code requirements. We reply to every RFQ within 24 hours.