LM340SX-12
- Mfr.Part #
- LM340SX-12
- Manufacturer
- National Semiconductor
- Package / Case
- TO-263-4, D2Pak (3 Leads + Tab), TO-263AA
- Datasheet
- Download
- Description
- IC REG LIN 12V 1A DDPAK/TO263-3
- Stock
- 2,151
- In Stock :
- 2,151
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- Manufacturer :
- National Semiconductor
- Product Category :
- Voltage Regulators - Linear
- Terminal Form :
- Gull wing
- RoHS Status :
- Non-RoHS Compliant
- Width :
- 8.64mm
- Packaging :
- Tape and Reel (TR)
- Packing Method :
- Tape and Reel
- Output Voltage Accuracy :
- 2 %
- Quiescent Current :
- 8mA
- Number of Functions :
- 1
- Output Configuration :
- Positive
- Mount :
- Surface Mount
- Pin Count :
- 4
- Lead Free :
- Contains Lead
- Number of Pins :
- 3
- Peak Reflow Temperature (Cel) :
- 235
- Base Part Number :
- LM340
- Output Type :
- FIXED
- Protection Features :
- Over Temperature, Short Circuit
- Current - Output :
- 1.5A
- Mounting Type :
- Surface Mount
- Output Voltage :
- 12V
- Number of Outputs :
- 1
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Dropout Voltage :
- 2V
- Terminal Position :
- Single
- ECCN Code :
- EAR99
- Operating Temperature :
- 0°C~125°C
- Voltage Dropout (Max) :
- 2V @ 1A
- Output Voltage 1 :
- 12V
- Min Input Voltage :
- 14.6V
- Pbfree Code :
- No
- Number of Regulators :
- 1
- JESD-609 Code :
- e0
- Height Seated (Max) :
- 4.79mm
- PSRR :
- 80dB (120Hz)
- Voltage Tolerance-Max :
- 5%
- Accuracy :
- 2 %
- Radiation Hardening :
- No
- Dropout Voltage1-Nom :
- 2V
- Terminal Pitch :
- 2.54mm
- Voltage - Input (Max) :
- 35V
- Max Output Current :
- 1A
- Number of Terminations :
- 3
- Package / Case :
- TO-263-4, D2Pak (3 Leads + Tab), TO-263AA
- Terminal Finish :
- Tin/Lead (Sn/Pb)
- Datasheets
- LM340SX-12

Voltage Regulators - Linear National Semiconductor LM340SX-12 Overview
Introducing the LM340SX-12, a high-performance linear voltage regulator meticulously crafted by National Semiconductor, a pioneer in integrated circuits technology. This innovative regulator stands out for its robust design and exceptional reliability, ensuring stable power delivery in a wide range of applications.
Designed to meet the demanding requirements of modern electronic systems, the LM340SX-12 excels in delivering a steady 12V output with a current rating of 1A. Its advanced Double-Dielectric Isolation (DDPAK) packaging, also known as TO2633, enhances thermal performance and enables efficient heat dissipation, making it suitable for various environments and operating conditions.
LM340SX-12 Features
- Stable 12V Output: Ensures consistent power supply for your electronic devices.
- High Current Capability: Rated for up to 1A, suitable for a wide range of applications.
- DDPAK Packaging: Features Double-Dielectric Isolation for enhanced thermal performance and reliability.
- Wide Operating Temperature Range: From -40°C to 125°C, ensuring reliable operation in harsh environments.
- Low Dropout Voltage: Minimizes power dissipation and maximizes efficiency.
LM340SX-12 Applications
- Industrial Automation: The LM340SX-12 is ideal for powering control systems, sensors, and actuators in industrial automation applications, ensuring reliable operation in demanding environments.
- Telecommunications: Deployed in telecommunications equipment such as routers, switches, and base stations, the LM340SX-12 provides stable power supply for uninterrupted communication networks.
- Automotive Electronics: From engine control units to infotainment systems, the LM340SX-12 delivers consistent power to various automotive electronics, enhancing performance and reliability on the road.
- Consumer Electronics: Whether in home appliances, audio/video equipment, or handheld devices, the LM340SX-12 ensures stable power delivery, enhancing the functionality and longevity of consumer electronics.
- Renewable Energy Systems: Integrated into solar inverters, wind turbines, and battery charging systems, the LM340SX-12 facilitates efficient power conversion and management in renewable energy applications.
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