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L78M09CV
Linear Voltage Regulators 9.0V 0.5A Positive
L78M09CV
Linear Voltage Regulators 9.0V 0.5A Positive
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Manufacturer Part # : L78M09CV
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Package/Case: TO-220
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Part Status : Active
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Brand: Stmicroelectronics
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Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.
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
We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.
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
L78M09CV DataSheet
Pricing (USD)
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1 | $0.481 | $0.48 |
| 10 | $0.391 | $3.91 |
| 30 | $0.352 | $10.56 |
| 100 | $0.304 | $30.40 |
| 500 | $0.283 | $141.50 |
| 1000 | $0.270 | $270.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Details
Designed for ease of use, the L78M09CV comes in a TO-220 package that simplifies mounting and provides effective heat dissipation. Its built-in thermal shutdown and short circuit protection features offer peace of mind by preventing damage due to overheating or sudden electrical faults. Whether you're working on a DIY project or a commercial application, this regulator's robust design ensures longevity and stability in power supply management
Key Features
- This product has a low dropout voltage which minimizes the effect of input voltage variations
- The L78M09CV is highly efficient with a typical conversion efficiency of 90%
- This device provides fast transient response and good regulation characteristics
Application
- Power Management
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Operating Temp Min Celsius | 0.0 | Operating Temp Max Celsius | 150.0 |
| 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 L78M09CV?
The L78M09CV is a positive voltage regulator integrated circuit manufactured by STMicroelectronics. It is a low-dropout regulator designed to provide a fixed 9V output voltage from a higher input voltage source. This regulator is commonly used in various electronic devices and power supply applications.
How Does L78M09CV Work?
The L78M09CV regulates the output voltage to 9V by comparing the feedback voltage with a reference voltage internally. It adjusts the output voltage by controlling the pass transistor to maintain a stable 9V output even with fluctuations in the input voltage or load conditions. The device dissipates excess energy as heat to regulate the voltage output.
How Many Pins does L78M09CV have and What are the Functions of the Pinout Configuration?
The L78M09CV typically comes in a TO-220 package, which consists of three pins:
- Input (VIN or V+): This pin is used to connect the input voltage source, typically a higher voltage than the desired output voltage.
- Output (VOUT): This pin provides a fixed 9V regulated output voltage.
- Ground (GND): This pin is connected to the ground reference of the circuit.
What are the Pros and Cons of L78M09CV?
Pros:
- Fixed Output Voltage: Provides a stable 9V output voltage for various applications.
- Simple Design: Easy to use and integrate into circuit designs.
- Low Dropout Voltage: Can regulate the output voltage even when the input voltage is close to the output voltage.
- Thermal Overload Protection: Includes built-in protection against overheating.
Cons:
- Heat Dissipation: May require a heat sink for higher power applications to dissipate excess heat.
- Voltage Drop: Some energy is dissipated as heat, affecting efficiency in high current applications.
Are There Any Equivalents/Alternatives to L78M09CV for Recommendation?
- The LM7809 from Texas Instruments is an equivalent 9V voltage regulator to the L78M09CV.
- Alternatives to the L78M09CV include the UA7809 from STMicroelectronics and the MC7809 from ON Semiconductor.
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