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Product Detailed Parameters
- Description：IC REG LINEAR -15V 1.5A TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-35V
- Voltage - Output (Min/Fixed)：-15V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.1V @ 1A (Typ)
- Current - Output：1.5A
- Current - Quiescent (Iq)：3 mA
- Current - Supply (Max)：-
- PSRR：60dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The L7915CV is a three-terminal negative linear voltage regulator from the L79xxC series, manufactured by STMicroelectronics. It provides a fixed output voltage of -15 V with a maximum output current capability of 1.5 A. The device operates within an input voltage range of -17.5 V to -35 V and features thermal overload protection, short-circuit protection, and output safe-area protection. Electrical characteristics include a typical quiescent current of 3 mA, line regulation of 300 mV, load regulation of 300 mV, and supply voltage rejection of 60 dB at 120 Hz. It is housed in a TO-220 package for through-hole mounting.
Feature Summary
- Integrated thermal overload protection prevents damage during excessive heat generation.
- Short circuit protection safeguards the device against output fault conditions.
- Output transition Safe Operating Area (SOA) protection ensures stability under varying load conditions.
Applications
- Local on-card regulation to eliminate distribution problems associated with single-point regulation
- Split power supplies utilizing standard voltage options compatible with positive regulators
- Negative voltage generation for analog circuits requiring stable DC power rails
Procurement Notes
Verify the specific order code suffix to confirm the package type, as the L7915CV designation corresponds to the TO-220 package. Confirm that the application environment does not exceed the absolute maximum ratings defined in the datasheet. Ensure adequate heat sinking is provided if continuous operation near the 1.5 A limit is required. Check for RoHS compliance status relevant to the manufacturing region.
Selection Notes
Select this component when a fixed -15 V negative rail is required with up to 1.5 A capacity. Consider the TO-220 package constraints regarding thermal resistance and board space. Evaluate the dropout voltage requirements relative to the minimum input voltage available in the system. Compare line and load regulation specifications against the precision needs of the target circuitry.
Part Context
The L7915CV belongs to the L79xxC series of negative voltage regulators produced by STMicroelectronics. This series offers multiple fixed output voltages including -5 V, -8 V, -12 V, and -15 V. The devices are designed to complement the L78xx positive regulator series, facilitating the design of dual-polarity power supplies. They are available in various packages including TO-220, TO-220FP, and D²PAK.
Replacement Considerations
L7915CP
FAQ
What is the maximum input voltage allowed for the L7915CV?
The maximum DC input voltage is -35 V.
Does the L7915CV support adjustable output voltages?
Although designed primarily as a fixed voltage regulator, it can be used with external components to obtain adjustable voltages and currents.
