최종 구매 공지: MP1251DS-LF 단종에 가까워지고 있습니다. 최종 주문일: 문의하기. 사용 가능한 대체 부품 보기 →
Monolithic Power Systems

MP1251DS-LF - Specialized Power-Supply Interface | MPS

부품 번호: MP1251DS-LF ⚠ 최종 구매
재고 있음 영업일 기준 1~3일 내 발송
8-SOIC Package
문의하기 가격 문의
MOQ: 1 |
가격 업데이트: 2026-10-22
볼륨 가격
수량 단가 합계
1 $0 $0.00
10 $0 $0.00
100 $0 $0.00
500 $0 $0.00
1,000 $0 $0.00
ℹ️ 모든 가격은 USD 기준입니다

MP1251DS-LF 개요

The Monolithic Power Systems MP1251DS-LF is a specialized power-supply and converter interface integrated circuit packaged in an 8-pin SOIC. The verified distributor data identifies the device as a Last Time Buy part and lists an SMBus interface, SMT mounting, and suitability for power supplies, converters, and controller-interface applications. Those verified facts define its present role, while detailed electrical limits, timing values, register functions, and pin-level functions were not supplied and must be confirmed from the manufacturer datasheet before design release.

A power-supply interface controller is a specialized class of power-management and interface IC that sits between a host controller and a regulated power subsystem. An SMBus-compatible device may be used for configuration, telemetry, control, or status exchange, but the exact commands and electrical implementation of MP1251DS-LF cannot be inferred from the distributor category alone. System designers should therefore treat the verified part identity, package, interface category, applications, mounting style, and lifecycle state as authoritative while sourcing missing functional data from the original documentation.

The 8-SOIC package supports surface-mount PCB assembly and matches the package information reported by DigiKey and GlobalSpec. Surface mount is useful in compact power electronics because it avoids through-hole mechanical strain and supports automated assembly. However, the verified material does not provide body dimensions, pin pitch, thermal resistance, maximum supply voltage, operating temperature, current rating, or exposed-pad details. Those package and electrical attributes should not be inferred from the generic 8-SOIC label.

Typical design targets suggested by the verified distributor records are power supplies, DC-DC converters, and controller-interface systems. In each case, the device should be evaluated for protocol compatibility, signal levels, timing, operating voltage, shutdown behavior, and fault handling. Because MP1251DS-LF is identified as Last Time Buy, procurement planning matters as much as electrical suitability. Buyers should confirm current distributor inventory, lifecycle timing, and authorized-channel traceability before committing a new production design.

The most important layout precaution is to follow the exact manufacturer pinout and recommended decoupling once the original datasheet is obtained. Do not assign SOIC pins by convention or route SMBus signals before confirming their package numbers and alternate functions. Validate pull-ups, voltage-domain compatibility, ground return paths, and any exposed thermal or electrical requirements at the schematic-review stage.

This product record consolidates the verified distributor status, package, interface class, application labels, source links, and sourcing implications for MP1251DS-LF. It deliberately leaves unavailable electrical and pin functions unresolved rather than manufacturing specifications, and it distinguishes verified purchasing information from engineering data that still requires manufacturer documentation.

드롭인 대체품: MP1251DS-LF — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

이 제품에는 사용 가능한 드롭인 대체품이 없습니다.

대체품 요청

MP1251DS-LF 최대 정격 & 전기적 특성

Device Type Power Supplies, Converters, Controllers Interface
인터페이스 SMBus
장착 스타일 SMT
Supplier Device Package 8-SOIC
Manufacturer Package 8-SOIC
Package Pin Count 8 pins
Part Status Last Time Buy
Application Category Power Supplies, Converters, Controllers Interface

MP1251DS-LF 8 pins 핀 구성 가이드

MP1251DS-LF(8 pins 패키지)의 핀 구성입니다. 이 전력 소자는 게이트, 드레인, 소스 단자를 갖추고 있습니다. 비편향 패키지의 경우 정확한 핀 1 방향과 풋프린트 세부 정보는 제조사 데이터시트를 참조하십시오. 일반적인 응용 분야로는 전원 공급 장치 설계, 모터 구동, 부하 스위칭이 있습니다.

MP1251DS-LF의 8 pins 패키지 핀아웃 다이어그램

다음에 대한 상세 핀아웃 데이터 없음: MP1251DS-LF.

다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.

일반적인 애플리케이션

MP1251DS-LF 적합 용도: 6 애플리케이션s: Power-Supply Management Interface, DC-DC Converter Controller Interface, Digital Power Telemetry, Industrial Control Power Rails, Server and Network Power Control, Board-Level Power Sequencing.

⚡

Power-Supply Management Interface

MP1251DS-LF fits evaluation in a digitally supervised power-supply subsystem because the verified distributor data identifies an SMBus interface and a power-supply/controller-interface category. Its role could involve configuration, monitoring, or status control, but the exact commands and electrical functions must be confirmed from the original manufacturer documentation. Before schematic release, verify the supply range, logic thresholds, timing, fault behavior, and every 8-SOIC pin assignment. The principal sourcing concern is the verified Last Time Buy status: production demand should be matched to documented remaining inventory rather than assumed future availability.

⚡

DC-DC Converter Controller Interface

The MP1251DS-LF is a candidate for supervisory control around a DC-DC converter because verified listings classify it under converters and controllers interfaces. An implementation should first confirm from the manufacturer datasheet whether the device controls converter parameters, reports status, or only provides a communications function. Hardware review must include SMBus pull-up selection, logic-level compatibility, startup timing, and fault handling across all eight SOIC pins. Given the Last Time Buy lifecycle state, engineers should also evaluate lifecycle risk and obtain a manufacturer-supported replacement path before committing a long-lived platform.

🖥️

Digital Power Telemetry

MP1251DS-LF can be evaluated where a power system needs a standardized digital-control connection, based on the verified SMBus designation. Telemetry designs would require confirmation of supported measurements, register definitions, scaling, refresh behavior, and fault reporting before assuming compatibility. Place the device where short SMBus routes, solid ground references, and appropriate decoupling minimize signal-integrity risk. Because no bus rate, address scheme, or electrical limits were supplied, engineers must retrieve those details from official documentation and test prototype behavior across voltage and temperature limits before production release.

🏭

Industrial Control Power Rails

MP1251DS-LF may suit an industrial controller that coordinates a regulated power rail through its documented interface function, although the verified information does not expose individual specifications. Engineering validation must cover supply transients, operating-temperature requirements, isolation boundaries, grounding, and system restart behavior. The 8-SOIC SMT package simplifies board assembly but does not eliminate thermal or layout review. Because the part is marked Last Time Buy, industrial projects should reserve traceable supply and document the operational consequences of future shortages.

🌐

Server and Network Power Control

The verified SMBus and power-controller-interface classification makes MP1251DS-LF worth evaluating for server or networking power-control subsystems. Such systems often require deterministic startup, monitoring, and fault isolation, but none of those detailed behaviors can be confirmed from the supplied snippets. Designers must compare the original datasheet against their platform's voltage domains, bus topology, timing, and recovery requirements. Procurement should obtain manufacturer lot traceability because Last Time Buy availability cannot be extrapolated into a sustainable multi-year supply plan.

🔧

Board-Level Power Sequencing

MP1251DS-LF may be relevant to a sequencing architecture if the manufacturer documentation confirms suitable control outputs and timing. Sequencing designs are particularly sensitive to rail order, delay accuracy, fault shutdown, and behavior during brownout or restart events, none of which is specified in the verified search data. Engineers must therefore review the complete electrical model and validate worst-case timing on prototypes rather than inferring sequencing performance from the part category. The Last Time Buy state also requires a controlled approved-vendor list and long-term obsolescence plan.

What is MP1251DS-LF?
MP1251DS-LF is a Monolithic Power Systems specialized power-supply and converter interface IC with an SMBus interface in an 8-SOIC package. DigiKey categorizes it under Power Supplies, Converters, Controllers Interface, while GlobalSpec lists power supplies, converters, and controllers interface applications. Detailed electrical functions are unavailable in the supplied verified data and must be confirmed from the manufacturer datasheet before design use.
What is the lifecycle status of MP1251DS-LF?
MP1251DS-LF is listed as Last Time Buy in the supplied GlobalSpec result. This means purchasing teams should immediately confirm authorized-channel inventory, remaining supply, and lot traceability rather than treating it as an active long-term-production component. The lifecycle conclusion is based on the verified GlobalSpec page retrieved on 2026-10-22, not on inferred market availability.
Where can I buy MP1251DS-LF online?
You can locate MP1251DS-LF through DigiKey, Win Source, Ariat-Tech, Zouser, Veswin, and Jotrin using the verified product links on this page. DigiKey's listing says it ships today, but no numeric stock quantity or guaranteed lead time was supplied. For production procurement, request a written quotation and traceability details because the device is identified as Last Time Buy.
What is the price of MP1251DS-LF?
A verified numeric unit price was not present in the supplied web results, so no defensible price can be published as of 2026-10-22. DigiKey and Octopart expose purchasing links, but the retrieved snippets do not include a price value. Request current quotations from authorized distributors and compare the final cost against non-lifecycle-supported alternatives before allocating a last-time-buy budget.
What is the lead time for MP1251DS-LF?
The verified data does not provide a numeric production lead time. DigiKey's snippet states that MP1251DS-LF is available to buy and ships today, but that wording is not a durable supply commitment, especially for a Last Time Buy component. Ask the selected distributor for lot size, factory quantity, scheduled shipment, and remaining-life information in writing as of 2026-10-22.
Is MP1251DS-LF in stock?
MP1251DS-LF may be available from multiple distributors, but the supplied evidence does not include a numeric stock count. DigiKey states that the part can be bought and ships today, while other results provide RFQ, inventory, or quotation pages without quantities. Confirm stock at order entry because distributor inventory can change quickly for a Last Time Buy device.
Where can I download the MP1251DS-LF datasheet PDF?
The verified GlobalSpec datasheet page is the direct documentation link supplied for MP1251DS-LF. DatasheetArchive also provides an MP1251DS-family archive page, and several distributors link to technical resources. Because the supplied evidence does not expose a verified document number, revision, or page count, engineers should avoid relying on those details until confirmed from the downloaded manufacturer document.
Where can I find the MP1251DS-LF pinout?
The MP1251DS-LF pinout must be obtained from the original manufacturer datasheet because the verified web results confirm an 8-SOIC package but do not identify any pin name or number. Do not infer SMBus, supply, ground, or control-pin assignments from package conventions. Cross-check every connection against the exact ordering code and datasheet revision before fabrication.
What package does MP1251DS-LF use?
MP1251DS-LF uses an 8-SOIC surface-mount package according to both DigiKey and the GlobalSpec result. The verified mounting style is SMT, and the package count is eight pins. Body dimensions, lead pitch, and thermal data are not supplied, so the generic SOIC-8 library mapping should not substitute for the manufacturer mechanical drawing.
What can replace MP1251DS-LF?
No verified pin-compatible replacement can be named from the supplied data because the cross-reference results contain tools and listings rather than an identified equivalent with confirmed 8-SOIC pinout and matching electrical behavior. An engineering replacement must match package, pin functions, SMBus behavior, supply limits, timing, and application requirements. Functional similarity alone is insufficient for a true drop-in substitution.
Is there a pin-compatible Monolithic Power Systems equivalent for MP1251DS-LF?
No same-family Monolithic Power Systems substitute is explicitly identified in the supplied verified alternatives data. Same-brand variants such as assembly or tape-and-reel order codes would not add distinct engineering value and are intentionally omitted. Before redesign, obtain MPS documentation and request a manufacturer-confirmed lifecycle replacement or migration recommendation rather than selecting a part from name similarity alone.
What is the best cross-brand equivalent for MP1251DS-LF?
The best cross-brand equivalent has not been verified because the supplied cross-reference search returned generic tools and no candidate MPN with documented pin compatibility. A valid substitute must use the same 8-SOIC footprint, expose equivalent SMBus pins, operate from a compatible supply range, and meet the original system's timing and control requirements. Use the DigiKey cross-reference result together with manufacturer datasheets to identify and validate such a part.
MP1251DS-LF vs a candidate replacement - which is better?
MP1251DS-LF should be preferred when maintaining an already qualified board because its verified identity, 8-SOIC package, and SMBus interface are established, but its Last Time Buy status creates supply risk. A candidate replacement is better only after its pin mapping, electrical limits, SMBus behavior, timing, and lifecycle status have been formally compared. No specific alternative is presented because none was verified.
When should I choose MP1251DS-LF over another interface IC?
Choose MP1251DS-LF only when its manufacturer-documented SMBus and power-interface functions match the target system and the organization can secure sufficient Last Time Buy supply. For a new design facing lifecycle or sourcing risk, prefer a currently supported device with verified pin compatibility. The present distributor category supports the interface use case but does not provide enough electrical detail for a broader recommendation.
Is MP1251DS-LF suitable for power supplies and DC-DC converters?
MP1251DS-LF is suitable for evaluation in power supplies, converters, and controller-interface systems because the verified distributor records explicitly list those applications. Suitability is application-level rather than proof of electrical compatibility. Confirm operating voltage, current, thermal limits, control logic, and fault behavior in the original datasheet before using it with a specific converter topology.
What are the key specifications engineers should know about MP1251DS-LF?
The verified key facts are an 8-SOIC package, SMT mounting, an SMBus interface, specialized power-supply and converter-controller applications, and Last Time Buy lifecycle status. These concrete attributes identify its role and sourcing constraints. Supply voltage, current, temperature, timing, dimensions, and pin definitions remain unavailable in the supplied evidence and are intentionally not inferred.

엔지니어링 참조 데이터: MP1251DS-LF — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose MP1251DS-LF only when its manufacturer-documented functions match an existing qualified design and sufficient traceable supply can be secured before Last Time Buy inventory is exhausted. Its verified strengths are a defined 8-SOIC SMT package, SMBus interface, and application alignment with power supplies, converters, and controllers interfaces. For a new long-life product, a currently supported lifecycle status generally deserves priority unless no qualified alternative exists. No drop-in replacement is recommended from this record because the supplied cross-reference searches did not identify any candidate with verified pin compatibility and matching electrical behavior. Before switching suppliers, compare pin mapping, supply range, timing, SMBus behavior, thermal limits, and fault recovery, then validate the assembled board across expected voltage and temperature conditions.

설계 노트

Do not assign pins from the generic SOIC-8 outline. The verified results confirm eight pins but provide no pin names or functions. Obtain the manufacturer datasheet, map every supply, ground, SMBus, and control connection to numbered pins, and verify alternate functions before schematic release. Also confirm that the exact -LF ordering code corresponds to the datasheet revision used for the review.

The supplied data does not specify operating voltage, current, quiescent consumption, or protection limits. Before powering a prototype, derive the expected power loss from the actual input-output condition only after those values are documented, then compare it with the package thermal limit. Do not substitute generic SOIC-8 thermal assumptions; use the manufacturer mechanical and maximum-rating data for the precise device.

Follow the manufacturer's layout recommendation for power and SMBus routing after obtaining the datasheet. Keep interface traces short, provide a continuous ground reference, place required pull-ups where they do not create unwanted bus loading, and place decoupling capacitors adjacent to their specified pins. Validate rise time, ringing, and bus-level margins on the final PCB rather than relying only on simulation.

A Last Time Buy designation changes procurement behavior even when the circuit is technically sound. Capture authorized distributor inventory, lot traceability, date codes, and a documented end-of-life plan before committing production quantities. Do not treat a marketplace page, generic search result, or same-name non-LF variant as evidence of an equivalent or an authorized source.

규정 준수 정보

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
무연
Unknown
무할로겐
Unknown
분쟁 광물
Unknown

The verified web results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals compliance. These fields remain unknown rather than inferred.

관련 검색

MP1251DS-LF MP1251DS-LF datasheet Monolithic Power Systems MP1251DS-LF MP1251DS-LF 8-SOIC MP1251DS-LF SMBus interface MP1251DS-LF power supply controller interface MP1251DS-LF pinout MP1251DS-LF replacement MP1251DS-LF buy online MP1251DS-LF price MP1251DS-LF lead time 8-SOIC SMBus power supply interface IC

관련 부품 & 용어

Monolithic Power Systems Inc. MP1251DS-LF MP1251DS power-supply interface power-management IC interface IC DC-DC converter converter controller SMBus 8-SOIC SOIC family surface mount SMT assembly Last Time Buy power telemetry power sequencing industrial control server power control pin compatibility lifecycle status DigiKey GlobalSpec Octopart Win Source
빠른 견적 RFQ
상세 정보를 모두 입력하십시오 — 영업팀이 24시간 이내에 답변드립니다
부품 번호 제조사 패키지 QTY 목표 가격 합계
합계: $0.00 USD
✓
견적이 제출되었습니다!

24시간 이내에 이메일로 답변드리겠습니다

1
RFQ 제출됨
2
견적 접수됨
3
주문 완료
4
결제
5
배송됨
6
배송 완료
RFQ 상세 보기