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Part Details for ST1S31PUR by STMicroelectronics
Results Overview of ST1S31PUR by STMicroelectronics
- Distributor Offerings: (17 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (3 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Applications
Energy and Power Systems
Transportation and Logistics
Renewable Energy
Automotive
ST1S31PUR Information
ST1S31PUR by STMicroelectronics is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for ST1S31PUR
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
86W0719
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Newark | Voltage Reg, Buck, 3A, 1.5Mhz, Vfdfpn-8, Topology:Synchronous Buck (Step Down), Input Voltage Min:2.8V, Input Voltage Max:5.5V, No. Of Outputs:1Outputs, Dc/Dc Converter Ic Case:Vfdfpn, No. Of Pins:8Pins, Output Current:3A, Output Rohs Compliant: Yes |Stmicroelectronics ST1S31PUR RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk | 299 |
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$0.7930 / $1.5100 | Buy Now |
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DISTI #
497-13213-1-ND
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DigiKey | IC REG BUCK ADJ 3A 8QFN Min Qty: 1 Lead time: 16 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) |
5790 In Stock |
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$0.7846 / $1.6300 | Buy Now |
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DISTI #
ST1S31PUR
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Avnet Americas | Conv DC-DC Single Step Down 2.8V to 5.5V 8-Pin VFDFPN EP - Tape and Reel (Alt: ST1S31PUR) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 16 Weeks, 0 Days Container: Reel | 0 |
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$0.6782 / $0.7211 | Buy Now |
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DISTI #
511-ST1S31PUR
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Mouser Electronics | Switching Voltage Regulators 3A DC Step Down REG 2.8V to 5.5V 1.5MHz RoHS: Compliant | 3367 |
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$0.7390 / $1.4800 | Buy Now |
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DISTI #
V36:1790_06557291
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Arrow Electronics | Conv DC-DC 2.8V to 5.5V Synchronous Step Down Single-Out 0.8V to 5.5V 3A 8-Pin VFDFPN EP T/R RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 16 Weeks Date Code: 2302 | Americas - 27000 |
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$0.6761 / $0.7143 | Buy Now |
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DISTI #
V72:2272_06557291
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Arrow Electronics | Conv DC-DC 2.8V to 5.5V Synchronous Step Down Single-Out 0.8V to 5.5V 3A 8-Pin VFDFPN EP T/R RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 16 Weeks Date Code: 2234 Container: Cut Strips | Americas - 179 |
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$0.7691 / $1.0804 | Buy Now |
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DISTI #
70520720
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RS | Switching Regulator, 2.8 - 5.5V Input, 0.8 - 5.5V Output, 3A Min Qty: 5 Package Multiple: 1 Container: Bulk | 0 |
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$0.9700 | RFQ |
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STMicroelectronics | 3 A DC step-down switching regulator COO: Malaysia RoHS: Compliant Min Qty: 1 | 3367 |
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$0.8400 / $1.4600 | Buy Now |
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Future Electronics | ST1S31 Series 5.5 V 1.5MHz 3 A DC Step-Down Switching Regulator - VFDFPN-8 RoHS: Compliant pbFree: Yes Min Qty: 3000 Package Multiple: 3000 Lead time: 20 Weeks Container: Reel | 0Reel |
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$0.7300 | Buy Now |
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DISTI #
80337961
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Verical | Conv DC-DC 2.8V to 5.5V Synchronous Step Down Single-Out 0.8V to 5.5V 3A 8-Pin VFDFPN EP T/R RoHS: Compliant Min Qty: 35 Package Multiple: 1 | Americas - 2936 |
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$0.8420 / $1.0500 | Buy Now |
Part Details for ST1S31PUR
ST1S31PUR CAD Models
ST1S31PUR Part Data Attributes
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ST1S31PUR
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
ST1S31PUR
STMicroelectronics
3 A DC step-down switching regulator
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | STMICROELECTRONICS | |
| Package Description | VFDFPN-8 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Factory Lead Time | 16 Weeks | |
| Samacsys Manufacturer | STMicroelectronics | |
| Additional Feature | OUTPUT VOLTAGE IN ADJUSTABLE MODE FROM 0.8 | |
| Analog IC - Other Type | SWITCHING REGULATOR | |
| Control Mode | CURRENT-MODE | |
| Control Technique | PULSE WIDTH MODULATION | |
| Input Voltage-Max | 5.5 V | |
| Input Voltage-Min | 2.8 V | |
| Input Voltage-Nom | 5 V | |
| JESD-30 Code | S-PDSO-N8 | |
| JESD-609 Code | e4 | |
| Length | 3 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -40 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | HVSON | |
| Package Equivalence Code | SOLCC8,.11,25 | |
| Package Shape | SQUARE | |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1 mm | |
| Surface Mount | YES | |
| Switcher Configuration | BUCK | |
| Switching Frequency-Max | 1900 kHz | |
| Temperature Grade | AUTOMOTIVE | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Form | NO LEAD | |
| Terminal Pitch | 0.65 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 40 | |
| Width | 3 mm |
Alternate Parts for ST1S31PUR
This table gives cross-reference parts and alternative options found for ST1S31PUR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of ST1S31PUR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| MIC2267YML-TR | Microchip Technology Inc | $2.2250 | SWITCHING REGULATOR | ST1S31PUR vs MIC2267YML-TR |
| TPS543C20ARVFR | Texas Instruments | Check for Price | 4-V to 16-V, 40-A synchronous SWIFT™ buck converter with adaptive internal compensation 40-LQFN-CLIP -40 to 125 | ST1S31PUR vs TPS543C20ARVFR |
| MIC2267YML | Microchip Technology Inc | Check for Price | SWITCHING REGULATOR, 1800kHz SWITCHING FREQ-MAX, PDSO12 | ST1S31PUR vs MIC2267YML |
ST1S31PUR Frequently Asked Questions (FAQ)
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A 2-layer or 4-layer PCB with a solid ground plane and thermal vias is recommended. Ensure a minimum of 1mm clearance around the device for airflow and heat dissipation.
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Implement a thermal management system, such as a heat sink or fan, to maintain a junction temperature below 150°C. Also, ensure proper PCB design and component selection to minimize thermal resistance.
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Monitor the output voltage, current, and temperature. Implement over-voltage protection (OVP), under-voltage protection (UVP), and over-temperature protection (OTP) to prevent damage and ensure safe operation.
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Use a combination of capacitors and inductors to filter the output. Optimize the filter design using simulation tools and consider the output impedance, load characteristics, and desired ripple and noise levels.
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Use low-ESR capacitors with a minimum capacitance of 10uF for the input and output. X5R or X7R ceramic capacitors are recommended for their high reliability and low temperature coefficient.