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Part Details for LD2981ABU33TR by STMicroelectronics
Results Overview of LD2981ABU33TR by STMicroelectronics
- Distributor Offerings: (23 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (4 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
Consumer Electronics
Security and Surveillance
Audio and Video Systems
Transportation and Logistics
Energy and Power Systems
Renewable Energy
Automotive
Robotics and Drones
LD2981ABU33TR Information
LD2981ABU33TR by STMicroelectronics is a Linear Regulator IC.
Linear Regulator ICs 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 LD2981ABU33TR
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
51AC9073
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Newark | Ldo, Fixed, 3.3V, 0.1A, Sot-89-3, Output Type:Fixed, Input Voltage Min:2.5V, Input Voltage Max:16V, No. Of Outputs:1Outputs, Output Voltage Min:-, Output Voltage Max:-, Polarity:Positive Output, Ic Mounting:Surface Mount Rohs Compliant: Yes |Stmicroelectronics LD2981ABU33TR RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Cut Tape | 7306 |
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$0.1760 / $0.1920 | Buy Now |
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DISTI #
497-1524-1-ND
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DigiKey | IC REG LINEAR 3.3V 100MA SOT89-3 Min Qty: 1 Lead time: 12 Weeks Container: Digi-Reel®, Tape & Reel (TR), Cut Tape (CT) |
66748 In Stock |
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$0.2167 / $0.5300 | Buy Now |
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DISTI #
LD2981ABU33TR
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Avnet Americas | Fixed LDO Voltage Regulator, 2.5V to 16V, 180 mV drop, 3.3V/100mA out, SOT-89-3 - Tape and Reel (Alt: LD2981ABU33TR) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 12 Weeks, 0 Days Container: Reel | 5000 |
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$0.1590 / $0.1799 | Buy Now |
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DISTI #
51AC9073
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Avnet Americas | Fixed LDO Voltage Regulator, 2.5V to 16V, 180 mV drop, 3.3V/100mA out, SOT-89-3 - Product that comes on tape, but is not reeled (Alt: 51AC9073) RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 111 Weeks, 0 Days Container: Ammo Pack | 2996 Partner Stock |
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$0.2900 / $0.4300 | Buy Now |
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DISTI #
LD2981ABU33TR
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Avnet Americas | Fixed LDO Voltage Regulator, 2.5V to 16V, 180 mV drop, 3.3V/100mA out, SOT-89-3 - Tape and Reel (Alt: LD2981ABU33TR) RoHS: Compliant Min Qty: 5000 Package Multiple: 2500 Lead time: 111 Weeks, 0 Days Container: Reel | 0 |
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$0.1799 / $0.1921 | Buy Now |
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DISTI #
511-LD2981ABU33
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Mouser Electronics | LDO Voltage Regulators 3.3V 100mA Positive RoHS: Compliant | 4870 |
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$0.2100 / $0.5300 | Buy Now |
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DISTI #
V79:2366_27121531
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Arrow Electronics | LDO Regulator Pos 3.3V 0.1A 4-Pin(3+Tab) SOT-89 T/R RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 2217 | Americas - 17332 |
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$0.3141 | Buy Now |
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STMicroelectronics | Ultra low drop voltage regulators with inhibit low ESR output COO: Singapore RoHS: Compliant Min Qty: 1 | 4809 |
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$0.2500 / $0.5200 | Buy Now |
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Future Electronics | LD2981 Series 100 mA 3.3 V Fixed Output LDO Regulator with Inhibit - SOT-89 RoHS: Compliant pbFree: Yes Min Qty: 1 Package Multiple: 1 Lead time: 12 Weeks Container: Cut Tape/Mini-Reel | 50Cut Tape/Mini-Reel |
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$0.3900 / $0.6350 | Buy Now |
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Future Electronics | LD2981 Series 100 mA 3.3 V Fixed Output LDO Regulator with Inhibit - SOT-89 RoHS: Compliant pbFree: Yes Min Qty: 2500 Package Multiple: 2500 Lead time: 12 Weeks Container: Reel | 0Reel |
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$0.1730 / $0.1810 | Buy Now |
Part Details for LD2981ABU33TR
LD2981ABU33TR CAD Models
LD2981ABU33TR Part Data Attributes
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LD2981ABU33TR
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
LD2981ABU33TR
STMicroelectronics
Ultra low drop voltage regulators with inhibit low ESR output
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | STMICROELECTRONICS | |
| Part Package Code | SOT-89 | |
| Package Description | SOT-89, 3 PIN | |
| Pin Count | 3 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Factory Lead Time | 111 Weeks | |
| Samacsys Manufacturer | STMicroelectronics | |
| Adjustability | FIXED | |
| Dropout Voltage1-Max | 0.375 V | |
| Dropout Voltage1-Nom | 0.18 V | |
| Input Voltage Absolute-Max | 16 V | |
| Input Voltage-Max | 16 V | |
| Input Voltage-Min | 4.3 V | |
| JESD-30 Code | R-PSSO-F3 | |
| JESD-609 Code | e3 | |
| Length | 4.5 mm | |
| Line Regulation-Max | 0.0124% | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Outputs | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature TJ-Max | 125 °C | |
| Operating Temperature TJ-Min | -40 °C | |
| Output Current1-Max | 0.1 A | |
| Output Voltage1-Max | 3.383 V | |
| Output Voltage1-Min | 3.217 V | |
| Output Voltage1-Nom | 3.3 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | LSOF | |
| Package Equivalence Code | TO-243 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE, LOW PROFILE | |
| Packing Method | TR | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | |
| Seated Height-Max | 1.6 mm | |
| Surface Mount | YES | |
| Terminal Finish | Matte Tin (Sn) - annealed | |
| Terminal Form | FLAT | |
| Terminal Pitch | 1.57 mm | |
| Terminal Position | SINGLE | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Voltage Tolerance-Max | 2.5% | |
| Width | 2.445 mm |
Alternate Parts for LD2981ABU33TR
This table gives cross-reference parts and alternative options found for LD2981ABU33TR. 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 LD2981ABU33TR, 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 |
|---|---|---|---|---|
| LD2980CU33TR | STMicroelectronics | Check for Price | 3.3V FIXED POSITIVE LDO REGULATOR, 0.225V DROPOUT, PSSO3, SOT-89, 3 PIN | LD2981ABU33TR vs LD2980CU33TR |
| NJU7202U33 | New Japan Radio Co Ltd | Check for Price | Fixed Positive LDO Regulator, 3.3V, 0.6V Dropout, CMOS, PSSO3, SOT-89, 3 PIN | LD2981ABU33TR vs NJU7202U33 |
| LD2980ABU33TR | STMicroelectronics | Check for Price | 3.3V FIXED POSITIVE LDO REGULATOR, 0.225V DROPOUT, PSSO3, ROHS COMPLIANT, SOT-89, 3 PIN | LD2981ABU33TR vs LD2980ABU33TR |
| NJU7200U33 | New Japan Radio Co Ltd | Check for Price | Fixed Positive LDO Regulator, 3.3V, 0.8V Dropout, CMOS, PSSO3, SOT-89, 3 PIN | LD2981ABU33TR vs NJU7200U33 |
LD2981ABU33TR Frequently Asked Questions (FAQ)
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The maximum input voltage is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
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To ensure stability, make sure to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, keep the input and output capacitors close to the IC to minimize noise and oscillations.
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The maximum output current is 1.5A, but it's recommended to keep it below 1A for optimal performance and to prevent overheating.
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The output voltage can be adjusted by using a resistor divider network between the output and the ADJ pin. The output voltage is determined by the ratio of the resistors and the internal reference voltage (1.24V).
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The EN (Enable) pin is used to turn the regulator on or off. When the EN pin is high, the regulator is enabled, and when it's low, the regulator is disabled.