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LM7818ACT is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG LINEAR 18V 1A TO220-3. Review the specifications below when checking this part for your BOM.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for LM7818ACT
- Description：IC REG LINEAR 18V 1A TO220-3
- Series：-
- Mfr：onsemi
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：18V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：2V @ 1A (Typ)
- Current - Output：1A
- Current - Quiescent (Iq)：8 mA
- Current - Supply (Max)：-
- PSRR：69dB (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-220-3
- Grade：-
- Qualification：-
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for LM7818ACT
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview
The LM7818ACT is a three-terminal positive voltage regulator from the 78XX series, manufactured by onsemi. It provides a fixed output voltage of 18 V with a maximum output current capability of 1 A. The device features internal protections including thermal overload shutdown and short-circuit current limiting. It is designed for local on-card regulation applications to eliminate distribution problems associated with single-point regulation systems.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary
- Provides a fixed 18 V DC output voltage
- Includes internal thermal overload shutdown protection
- Features short-circuit current limiting capabilities
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications
- Local on-card voltage regulation
- Positive linear power supplies
- Electronic equipment requiring stable 18 V bias
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes
Verify the manufacturer marking matches onsemi specifications. Confirm the package type corresponds to TO-220 or equivalent standard housing. Check datasheet revisions for pinout consistency across different production batches. Ensure input voltage exceeds the required dropout voltage for proper regulation at the target load current.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes
Select this component when a fixed 18 V output is required with up to 1 A load current. Consider the thermal management requirements based on the input-output voltage differential and ambient temperature. Verify that the application does not require low-dropout performance, as standard 78xx regulators typically require a minimum input-to-output differential.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context
This part belongs to the widely used 78XX family of three-terminal linear regulators. These devices are standard solutions for general-purpose voltage regulation in industrial and consumer electronics. The LM7818 variant specifically targets applications needing an 18 V rail, offering a robust and cost-effective alternative to adjustable regulator circuits.
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