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LF33ABV
LDO Voltage Regulators 3.3V 0.5A Positive
LF33ABV
LDO Voltage Regulators 3.3V 0.5A Positive
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Manufacturer Part # : LF33ABV
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Package/Case: TO220-3
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Brand: Stmicroelectronics
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Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Quality Assurance
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Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.
About Payment
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If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.
Example
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Cut Tape
Tube or Tray
LF33ABV DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
Designed for applications with stringent power requirements, the LF33ABV regulator stands out with its ultra-low drop voltage of 0.45V and minimal quiescent current, making it an ideal choice for low-noise, low-power scenarios in battery-operated systems. Available in TO-220, TO-220FP, DPAK, and PPAK packages, this regulator boasts a wide range of output voltages to cater to different needs. The 5-pin PPAK configuration features a unique shutdown logic control function on pin 2, allowing for strategic power management by enabling selective standby mode operation to reduce overall power consumption effectively. On the other hand, the three-terminal configuration ensures continuous ON state operation with consistent electrical performance. Requiring just a 2.2µF capacitor for stability, the LF33ABV helps optimize board layout, saving space and reducing costs. For automotive applications, the DPAK and PPAK packages meet stringent standards set by AEC-Q100, ensuring reliable performance in temperatures ranging from -40°C to 125°C
Key Features
- Compact package size suitable for space-constrained applications
- Robust against voltage surges and spikes
- Wide range of input voltage tolerance available
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Operating Range | Automotive | Operating Temp Min Celsius | -40.0 |
| Operating Temp Max Celsius | 125.0 | ECCN US | EAR99 |
| ECCN EU | NEC | Packing Type | Tube |
| RoHs compliant | Ecopack2 | Grade | Industrial |
| Package Name | TO-220 |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LF33ABV?
The LF33ABV is a low-dropout voltage regulator designed by STMicroelectronics. It is suitable for applications requiring a stable output voltage with low dropout voltage, such as battery-powered devices, automotive electronics, and industrial control systems.
How Does LF33ABV Work?
The LF33ABV operates by regulating an input voltage to a stable output voltage with minimal dropout. It ensures a constant output voltage even when the input voltage decreases, providing a reliable power supply for sensitive components. The regulator features thermal overload protection and current limit functions for added safety and robustness.
How Many Pins does LF33ABV have and What are the Functions of the Pinout Configuration?
The LF33ABV is housed in a 3-pin TO-220 package. The pinout configuration includes:
- Input (VIN): The input voltage pin.
- Ground (GND): The ground pin.
- Output (VOUT): The regulated output voltage pin.
What are the Pros and Cons of LF33ABV?
Pros:
- Low Dropout Voltage: Provides a stable output voltage even when the input voltage is close to the output voltage.
- Thermal Overload Protection: Ensures device safety by preventing excessive heat buildup.
- Simple Design: Easy to use with minimal external components required for operation.
- Wide Application Range: Suitable for various low-power electronic systems.
Cons:
- Heat Dissipation: May require a heat sink for high power dissipation applications.
- Current Limitation: Has a maximum current output limit that needs to be considered in design.
Are There Any Equivalents/Alternatives to LF33ABV for Recommendation?
- The LM2937 from Texas Instruments is an equivalent low-dropout voltage regulator.
- Alternatives to the LF33ABV include the MCP1700 from Microchip Technology and the LD1117 from STMicroelectronics.
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