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Product Detailed Parameters
- Description：IC REG LINEAR -8V 1.5A TO220
- Series：L79
- Mfr：Lumimax Optoelectronic Technology
- Package：Bulk
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-35V
- Voltage - Output (Min/Fixed)：-8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.5V @ 1A
- Current - Output：1.5A
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：-
- PSRR：60dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-25°C ~ 125°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The L7908 is a negative fixed linear voltage regulator IC manufactured by Lumimax Optoelectronic Technology. It provides a stable -8V output with a maximum current capacity of 1.5A. The device is housed in a TO-220 package and features a typical power supply rejection ratio (PSRR) of 60dB at 120Hz. The maximum voltage dropout is specified as 1.5V when operating at a load current of 1A.
Feature Summary
- Maintains constant output voltage despite input voltage or load current variations
- Negative fixed output configuration for single-output applications
Applications
- General purpose electronic circuits requiring regulated negative voltage rails
- Power supply systems utilizing linear regulation technology
Procurement Notes
Verify the specific manufacturer origin, as Lumimax acts as a distributor for this component type. Confirm the package style matches the required TO-220 footprint. Ensure the datasheet specifications align with the intended thermal and electrical requirements before finalizing procurement decisions.
Selection Notes
Select this component for applications requiring a reliable -8V DC supply. Consider the 1.5A current limit and TO-220 thermal characteristics. Verify that the input voltage range accommodates the specified dropout voltage to ensure proper regulation under all operating conditions.
Part Context
This part belongs to the family of linear voltage regulators designed to maintain steady output levels. Lumimax offers various regulator types alongside discrete semiconductors and optoelectronics. This specific model addresses needs for negative polarity regulation in standard industrial and commercial electronics.
Replacement Considerations
Standard industry equivalents include the LM7908 series. Verify pinout compatibility and thermal performance when substituting with components from other manufacturers to ensure circuit integrity.
