Voltage Regulation by 78 series voltage regulators

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Power Up to 1A Output Current (for TO-220); Varies by Package
Voltage Fixed output (e.g., 5V, 6V, 8V, 9V, 12V, 15V, 18V, 24V, depending on 78xx part number)
Usage Fixed voltage regulation for DC circuits
Product Type Voltage Regulator IC
Material Plastic/Epoxy Encapsulated; Metal Heat Sink Tab (on TO-220)
Design Three-terminal Linear Regulator
Power Source DC Input (typically requires input voltage at least 2V above output voltage)
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Voltage Regulation by 78 series voltage regulators Price And Quantity

Minimum Order Quantity 1 Unit

Internal Thermal Overload Protection Yes
Input Voltage Range Up to 35V DC
Output Current Typical 1A continuous (with proper heat sinking)
Quiescent Current Typically 5mA
Application Power supplies, battery chargers, embedded circuits, microcontroller applications
Ripple Rejection 65dB (at 100Hz)
Mounting Type Through Hole or SMD
Load Regulation 0.01%/mA (Typical)
Line Regulation 0.01%/V (Typical)
Operating Temperature Range 0°C to 125°C
Package Type TO-220, TO-92, D2PAK, SOT-223
Short Circuit Protection Yes

Voltage Regulation by 78 series voltage regulators Product Specifications

Usage Fixed voltage regulation for DC circuits
Dimension (L*W*H) Standard TO-220/TO-92 package (e.g., 10mm x 4.7mm x 9mm)
Design Three-terminal Linear Regulator
Power Up to 1A Output Current (for TO-220); Varies by Package
Voltage Fixed output (e.g., 5V, 6V, 8V, 9V, 12V, 15V, 18V, 24V, depending on 78xx part number)
Weight Approximately 2-4 grams (TO-220)
Accuracy 2% (Typical)
Product Type Voltage Regulator IC
Material Plastic/Epoxy Encapsulated; Metal Heat Sink Tab (on TO-220)
Power Source DC Input (typically requires input voltage at least 2V above output voltage)

Internal Thermal Overload Protection Yes
Input Voltage Range Up to 35V DC
Output Current Typical 1A continuous (with proper heat sinking)
Quiescent Current Typically 5mA
Application Power supplies, battery chargers, embedded circuits, microcontroller applications
Ripple Rejection 65dB (at 100Hz)
Mounting Type Through Hole or SMD
Load Regulation 0.01%/mA (Typical)
Line Regulation 0.01%/V (Typical)
Operating Temperature Range 0°C to 125°C
Package Type TO-220, TO-92, D2PAK, SOT-223
Short Circuit Protection Yes

Voltage Regulation by 78 series voltage regulators Trade Information

Supply Ability 5 Unit Per Week
Delivery Time 4-5 Days
Main Export Market(s) Australia, South America, Eastern Europe, Western Europe, Middle East, Africa, Central America, Asia, North America
Main Domestic Market All India

Product Description

Study of Voltage Regulation using 78 series voltage regulators (AE 259 )

Objective : To Study voltage regulation using three terminal voltage regulators.

Features : Instrument comprises of AC Power Supply, two voltmeters to measure Input & Output Voltage, three type of regulators, load Resistances selectable using band switch & all important connections brought out on 4mm Sockets.

Reliable Fixed Voltage Regulation

78 series voltage regulators provide highly accurate and stable output voltages for DC circuits, making them essential for reliable performance in sensitive applications. Their built-in protections enhance device longevity and resilience against overloads.

Versatile Packaging and Mounting Options

Available in industry-standard TO-220, TO-92, D2PAK, and SOT-223 packages, these regulators can be mounted either through-hole or on surface mount boards, offering adaptability for varied electronic designs and environments.

Comprehensive Protection Features

Integrated short-circuit and internal thermal overload protection safeguard both the regulator and connected circuitry. This ensures continuous operation even under demanding conditions, reducing the risk of failure and simplifying design requirements.

FAQs of Voltage Regulation by 78 series voltage regulators:

Q: How do the 78 series voltage regulators maintain a fixed output voltage?

A: The 78 series regulators utilize internal circuitry to stabilize DC input voltage and maintain a fixed output, compensating for input variations. They require that the input voltage remains at least 2V above the desired output for optimal performance.

Q: What benefits do built-in protection features offer?

A: Short-circuit and thermal overload protections automatically limit the output or shut down the device during overload or excessive temperature, protecting both the regulator and connected electronics and minimizing potential damage.

Q: When should a heat sink be used with these regulators?

A: A heat sink is recommended when the output current exceeds several hundred milliamps or if the regulators case becomes noticeably warm. Proper heat sinking allows the device to deliver up to 1A continuous output current without thermal shutdown.

Q: Where can the 78 series voltage regulators be employed?

A: These regulators are ideal for power supplies, battery chargers, embedded circuits, and microcontroller-based systems, commonly used in consumer, industrial, and educational electronics across India and globally.

Q: What is the process for selecting the appropriate 78xx voltage regulator?

A: Choose the 78xx part based on your required output voltage (e.g., 7805 for 5V, 7812 for 12V), ensure the input voltage is at least 2V higher than the output, and pick a suitable package type for your mounting needs.

Q: How does the ripple rejection capability benefit sensitive circuits?

A: With a ripple rejection of 65dB at 100Hz, these regulators effectively minimize input voltage fluctuations, ensuring clean and steady power ideal for sensitive or noise-sensitive digital and analog circuits.

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