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PQ1X251M2ZP
Sharp Microelectronics
IC REG LINEAR 2.5V 150MA SOT23-5
5438 Pcs New Original In Stock
Switching Regulator IC Output
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*Quantity
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Minimum 1
5.0 / 5.0
- (457 Ratings)
PQ1X251M2ZP
Product Overview
5824929
DiGi Electronics Part Number
PQ1X251M2ZP-DGManufacturer
Sharp Microelectronics
PQ1X251M2ZP
Description
IC REG LINEAR 2.5V 150MA SOT23-5Inventory
5438 Pcs New Original In Stock
Switching Regulator IC Output
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
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Worldwide Delivery in 3-5 Business Days
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PQ1X251M2ZP Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
Cut Tape (CT)
Series
*
Product Status
Obsolete
Base Product Number
PQ1X251
Datasheet & Documents
HTML Datasheet
PQ1X251M2ZP-DG
Environmental & Export Classification
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
425-1710-1-DG
1149-PQ1X251M2ZPDKR
425-1710-2-DG
425-1710-1
1149-PQ1X251M2ZPTR
425-PQ1X251M2ZPTR
425-1710-2
1149-PQ1X251M2ZPCT
425-PQ1X251M2ZPDKR-DG
425-PQ1X251M2ZPDKR
Standard Package
3,000
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
我很感激他們的快速配送流程，以及遇到問題時售後團隊的即時協助，令我很滿意。
December 02, 2025
Their responsive customer service team promptly addresses all post-purchase concerns, which is highly commendable.
December 02, 2025
I've experienced zero issues with DiGi Electronics products, which speaks volumes about their reliability and quality.
December 02, 2025
I am very impressed with the durability and craftsmanship of the items purchased; truly top-notch quality.
December 02, 2025
Their delivery punctuality allows us to plan our repair and installation tasks with confidence.
December 02, 2025
Their inventory management system is highly efficient, reducing errors and delays.
December 02, 2025
Their consistent commitment to customer satisfaction is highly commendable.
December 02, 2025
The quality of their after-sales service keeps me coming back.
December 02, 2025
Every purchase from DiGi Electronics has been consistent in quality and reliability.
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Frequently Asked Questions (FAQ)
Can the PQ1X251M2ZP still be used in new designs despite being marked obsolete by Sharp Microelectronics?
The PQ1X251M2ZP is officially obsolete, meaning Sharp no longer manufactures or supports it. While existing stock may function as specified, using it in new designs introduces significant supply chain and long-term reliability risks. Obsolete parts lack future availability, making volume production or field replacements difficult. We recommend migrating to a supported alternative like the LP2985-25DBVT, which offers similar 2.5V/150mA LDO performance in a compatible SOT23-5 package with active manufacturer support and full lifecycle guarantees.
What are the key risks when replacing the PQ1X251M2ZP with the suggested substitute LP2985-25DBVT in an existing PCB layout?
Although both the PQ1X251M2ZP and LP2985-25DBVT are 2.5V, 150mA LDOs in SOT23-5 packages, critical differences exist in dropout voltage, quiescent current, and enable logic thresholds. The LP2985-25DBVT has a lower typical dropout (85mV vs ~200mV for PQ1X251M2ZP), which improves efficiency at low input voltages, but its enable pin requires a higher logic high threshold (~1.4V). Verify your control signal compatibility and ensure input capacitance meets the LP2985’s 1µF ceramic requirement—unlike some older designs that may rely on higher ESR caps. Always validate transient response and stability under your actual load conditions.
How does the moisture sensitivity level (MSL 1) of the PQ1X251M2ZP affect handling and storage in high-volume assembly environments?
The PQ1X251M2ZP’s MSL 1 rating means it is immune to moisture-induced damage during reflow and can be stored indefinitely under normal conditions without dry packing or bake-out procedures. This simplifies logistics compared to MSL 3+ devices, reducing handling overhead in SMT lines. However, since the part is obsolete, relying on aged inventory—even if MSL 1—introduces unknowns like solderability degradation over time. For new builds, prefer modern equivalents with verified fresh stock and documented shelf-life data.
Is the PQ1X251M2ZP suitable for battery-powered applications where quiescent current directly impacts runtime?
The PQ1X251M2ZP typically draws around 50–80µA of quiescent current, which may be acceptable for moderate-duty cycling but is suboptimal for ultra-low-power designs. In contrast, modern substitutes like the TPS78225 (2.5V variant) offer <1µA IQ, extending battery life significantly in always-on systems. If your application involves coin-cell operation or multi-year deployment, the PQ1X251M2ZP’s higher standby current becomes a critical liability—making migration to a nano-power LDO essential despite package similarity.
What design constraints should I consider if I must continue using the PQ1X251M2ZP due to legacy certification or form-fit requirements?
If forced to retain the PQ1X251M2ZP due to regulatory or mechanical constraints, implement rigorous risk mitigation: source only from authorized distributors with traceable date codes to avoid counterfeit or degraded units; derate output current by 20% to reduce thermal stress; ensure input voltage never exceeds 6V (absolute max) to avoid oxide breakdown; and add reverse-polarity protection externally, as the PQ1X251M2ZP lacks built-in safeguards. Document these workarounds clearly, as future redesigns should prioritize qualified, non-obsolete alternatives to avoid technical debt and compliance gaps.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
PQ1X251M2ZP CAD Models
Sharp Microelectronics PQ1X251M2ZP PCB symbols & footprints
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