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PQ1R23
Sharp Microelectronics
IC REG LIN 2.3V 150MA SOT23L-6
15513 Pcs New Original In Stock
Switching Regulator IC Output
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (115 Ratings)
PQ1R23
Product Overview
5824940
DiGi Electronics Part Number
PQ1R23-DGManufacturer
Sharp Microelectronics
PQ1R23
Description
IC REG LIN 2.3V 150MA SOT23L-6Inventory
15513 Pcs New Original In Stock
Switching Regulator IC Output
Quantity
Minimum 1
Minimum 1
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PQ1R23 Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
Cut Tape (CT)
Series
*
Product Status
Obsolete
Base Product Number
PQ1R23
Datasheet & Documents
Datasheets
Download PQ1R23 Product Specification (PDF)
HTML Datasheet
PQ1R23-DG
Environmental & Export Classification
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
425-PQ1R23TR
425-1656-1
425-1656-2
Standard Package
5,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
포장 품질과 배송서비스 모두 탁월해서 앞으로도 계속 이용하고 싶어요.
December 02, 2025
Delivery punctuality from DiGi Electronics is unmatched; they never delay, even during peak seasons.
December 02, 2025
Their website’s clarity and simplicity improve overall customer satisfaction.
December 02, 2025
The logistical coordination is superb, ensuring quick delivery.
December 02, 2025
I have rarely experienced such fast and helpful customer service in the electronics industry.
December 02, 2025
DiGi Electronics consistently impresses with quick shipments and attentive after-sales service.
December 02, 2025
The delivery arrived sooner than expected, and I loved that the packaging was minimal yet effective, reducing waste.
December 02, 2025
I always find their products to be well-made and worth the investment.
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Frequently Asked Questions (FAQ)
Can the PQ1R23 be safely replaced with a modern LDO like the MCP1700-2302E in a legacy industrial sensor design where board space and quiescent current are critical?
While the MCP1700-2302E offers lower quiescent current and similar SOT-23 packaging, it cannot directly replace the PQ1R23 due to fundamental differences in architecture—the PQ1R23 is a switching regulator IC, whereas the MCP1700 is a linear LDO. This means the PQ1R23 can handle higher input voltages with better efficiency under load, but requires external inductors and careful layout. Replacing it with an LDO may force you to derate input voltage or add heat sinking, increasing total solution size and potentially violating thermal constraints in sealed enclosures. Verify dropout voltage, transient response, and total power dissipation before substitution.
What are the key reliability risks when designing in the PQ1R23 for high-temperature automotive under-hood applications, given its obsolete status and lack of AEC-Q100 qualification?
The PQ1R23 is not AEC-Q100 qualified and is marked obsolete by Sharp Microelectronics, making it unsuitable for new automotive designs requiring long-term supply and traceability. Even though MSL 1 suggests robust moisture resistance, prolonged exposure to temperatures above 85°C—common in under-hood environments—can accelerate electromigration and degrade bond wires, especially without manufacturer-backed reliability data. For safety-critical systems, consider qualified alternatives like the TPS62130 (TI) or NCV8842 (onsemi), which offer similar 2.3V output, higher temperature ratings, and full automotive certification.
How should I handle PCB layout and grounding for the PQ1R23 to minimize output noise in a sensitive analog front-end application, such as a medical ECG amplifier?
Because the PQ1R23 is a switching regulator, improper layout can inject high-frequency ripple (>100 mVpp) into sensitive analog rails. Use a compact ground plane under the IC, place the input/output capacitors within 2 mm of the pins, and route SW node traces away from analog signal paths. Add a π-filter (ferrite bead + ceramic caps) at the output if feeding low-noise circuitry. Avoid splitting ground planes; instead, use a single-point star ground near the PQ1R23’s GND pin. Without these precautions, switching noise may couple into the ECG signal chain, degrading CMRR and introducing artifacts.
Is it feasible to parallel two PQ1R23 regulators to increase output current beyond 150 mA for a battery-powered IoT node with intermittent high-current RF bursts?
Paralleling PQ1R23 devices is not recommended due to lack of current-sharing control and potential instability. Switching regulators like the PQ1R23 are not designed for direct parallel operation—minor differences in feedback thresholds or layout parasitics can cause one device to carry most of the load, leading to localized overheating and premature failure. Instead, select a single regulator rated for your peak current (e.g., 500 mA), such as the AP63356 (Diodes Inc.), which maintains efficiency at light loads and supports burst-mode operation compatible with IoT duty cycles.
What long-term supply chain risks should I consider before finalizing a design that depends on the PQ1R23, and how can I mitigate obsolescence without a full board respins?
Since the PQ1R23 is obsolete and no longer in active production, future shortages or counterfeit parts are likely, especially with only ~15k units currently in stock. To mitigate risk, qualify a drop-in or functionally equivalent alternative early—such as the RT9080-23GV (Richtek) in SOT23-5, which offers similar 2.3V/150mA output and pin compatibility—and design the PCB to accommodate both footprints. Include test points for validation and document firmware/software dependencies on regulator behavior. This dual-source strategy reduces redesign costs if forced to transition later.
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.
PQ1R23 CAD Models
Sharp Microelectronics PQ1R23 PCB symbols & footprints
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