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LM7906
Description of LM7906: Single-output bipolar regulator
LM7906
Description of LM7906: Single-output bipolar regulator
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Manufacturer Part # : LM7906
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Package/Case: TO-257
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Brand: NS
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Service & Packaging
Service & Packaging
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LM7906 DataSheet
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Details
LM7906 is a 3-terminal negative voltage regulator produced by various manufacturers such as Texas Instruments and ON Semiconductor. It is commonly used in applications where a regulated negative voltage supply is required, such as in voltage inverters and dual power supply systems.LM7906 has an output voltage of -6V with a maximum output current of 1A. It operates in a wide input voltage range of -10V to -35V, making it versatile for a variety of applications. The regulator has built-in thermal shutdown and overload protection features, which makes it a reliable choice for ensuring stable operation under varying load conditions.The LM7906 is housed in a TO-220 package, which provides thermal efficiency and ease of mounting on a heat sink if necessary. The regulator has a low dropout voltage and high ripple rejection, which results in a stable and clean output voltage.
Key Features
- Output Voltage: -6V
- Output Current: 1A
- Input Voltage Range: -10V to -25V
- Internal Thermal Overload Protection
- Internal Short Circuit Current Limiting
- Package: TO-220
- Operating Temperature Range: 0°C to 125°C
- Low Standby Current Drain
Application
- Power supply regulation
- Electronic instruments
- Industrial automation
- Automotive applications
- Audio equipment
- Battery chargers
- DC motor controls
- LED lighting
- Sensor interfaces
- Voltage converters
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Rohs Code | No | Part Life Cycle Code | Contact Manufacturer |
| Reach Compliance Code | ECCN Code | EAR99 | |
| HTS Code ! | 8542.39.00.01 | Adjustability | FIXED |
| Dropout Voltage1-Nom | 1.1 V | Input Voltage Absolute-Max | 30 V |
| JESD-609 Code | e0 | Line Regulation-Max | 0.1% |
| Load Regulation-Max | 0.1% | Number of Outputs | 1 |
| Number of Terminals | 3 | Operating Temperature-Max | 70 °C |
| Operating Temperature-Min | -20 °C | Output Current1-Max | 0.5 A |
| Output Voltage1-Nom | -6 V | Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SIP3,.1TB | Qualification Status ! | Not Qualified |
| Surface Mount ! | NO | Technology | BIPOLAR |
| Terminal Finish | Tin/Lead (Sn/Pb) | Terminal Pitch ! | 2.54 mm |
| Terminal Position | SINGLE | Voltage Tolerance-Max | 3% |
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 LM7906?
The LM7906 is a 3-terminal negative voltage regulator integrated circuit designed by Texas Instruments. It provides a fixed output voltage of -6V and is commonly used in circuits where a stable negative voltage source is required.
How Does LM7906 Work?
The LM7906 operates as a voltage regulator by taking an input voltage, typically higher than -6V, and regulating it to provide a constant -6V output. It maintains this voltage level despite variations in the input voltage and load conditions, ensuring a stable negative voltage supply for connected components.
How Many Pins does LM7906 have and What are the Functions of the Pinout Configuration?
The LM7906 is available in a standard 3-pin TO-220 package. The pinout configuration includes:
- Input (VIN): Negative input voltage pin.
- Ground (GND): Ground pin.
- Output (VOUT): Negative output voltage pin (-6V).
What are the Pros and Cons of LM7906?
Pros:
- Fixed Output Voltage: Provides a stable -6V output, suitable for applications requiring a negative voltage supply.
- Simple to Use: Operates as a standalone voltage regulator requiring minimal external components.
- Short Circuit Protection: Offers protection against output short circuits, enhancing system reliability.
- Cost-Effective: Offers a cost-effective solution for generating negative voltages in electronic circuits.
Cons:
- Fixed Voltage: The output voltage is fixed at -6V and cannot be adjusted.
- Heat Dissipation: May require a heat sink for high-power applications to dissipate heat effectively.
- Limited Current Capability: The LM7906 has a specified maximum output current limit.
Are There Any Equivalents/Alternatives to LM7906 for Recommendation?
- The LM79XX series from Texas Instruments includes negative voltage regulators with different fixed output voltages.
- Alternatives to the LM7906 include the MC7906 from ON Semiconductor and the L7906CV from STMicroelectronics.
