LDO Voltage L78L05ABUTR
The L78L05ABUTR from STMicroelectronics is a 100mA positive voltage regulator in a SOT-89-3 package. It features internal current limiting and thermal shutdown for enhanced protection and reliability.
Description
Product parameter
|
Type |
Parameter |
|
Category |
Power Management (PMIC) - LDO Regulators |
|
Manufacturer |
STMicroelectronics |
|
Output Configuration |
Positive |
|
Output Type |
Fixed |
|
Number of Regulators |
1 |
|
Maximum Input Voltage |
30V |
|
Minimum Output Voltage |
5V |
|
Output Current |
100mA |
|
Quiescent Current (Iq) |
5.5mA |
|
Maximum Supply Current |
6mA |
|
Power Supply Rejection Ratio (PSRR) |
49dB (120Hz) |
|
Protection Features |
Over Current, Over Temperature, Short Circuit |
|
Operating Temperature Range |
-40°C ~ 125°C |
|
Mounting Type |
Surface Mount |
|
Package Type |
TO-243AA |
|
Supplier Package |
SOT-89-3 |
Features
- The L78L05ABUTR is an STMicroelectronics 100mA positive voltage regulator in a SOT-89-3 package. It has a fixed 5V output and includes internal current limiting for protection. The regulator also has a thermal shutdown to ensure that it operates reliably in a variety of circumstances. Here are some of the model's highlights.
- High Protection and Efficiency
- The L78L05ABUTR's internal current limiting and thermal shutdown ensure reliability and protection against damage. The regulator can deliver up to 100 mA of output current with adequate heat sinking.
- Fixed Voltage Regulation
- Designed as a fixed-voltage regulator, it is ideal for local or on-card regulation. It effectively eliminates noise and distribution problems typically associated with single-point regulation.
- Low Quiescent Current and Simple Design
- The device operates with a low quiescent current of 5.5 mA and does not require any external components. It features a maximum supply current of 6 mA and a Power Supply Rejection Ratio (PSRR) of 49 dB at 120 Hz, ensuring stable performance.
Package
- The L78L05 is available in a surface-mount TO-243AA package (SOT-89-3), with three pins and dimensions of 4.6 mm x 2.6 mm x 1.6 mm. It weighs only 4.54 g, making it small and ideal for space-constrained applications.
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FAQ
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Q: Does this regulator include any built-in safety features?
A: Yes, it contains short-circuit protection to protect the regulator and its related components.
Q: What package type does the L78L05ABUTR come in?
A: It is available in a surface-mount SOT-89-3 package, which is small and perfect for space-constrained applications.
Q: What is the usual quiescent current (Iq) for this circuit?
A: The L78L05ABUTR has a typical quiescent current (Iq) of 5.5 mA, which ensures minimal power consumption.
Q: What is the maximum input voltage to this regulator?
A: It can withstand input voltages of up to 30 V, making it suitable for a wide range of applications.
Q: Can the L78L05ABUTR be used for high-current applications?
A: This circuit is intended for low-power applications, but it can be used in conjunction with external pass elements to regulate high-current voltages.
Q: Is an external component required for the regulator?
A: No, it does not require any external components to function, which simplifies the design process.
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