EN
  • EN
  • DE

LM123K

Part No LM123K
Manufacturer STMicroelectronics
Catalog PMIC - Voltage Regulators - Linear
Description IC REG LDO 5V 3A TO3
Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories Integrated Circuits
Manufacturer STMicroelectronics
Packaging Bulk
Status Obsolete(EOL)
Output Type Fixed
Number of Regulators 1
Maximum Input Voltage 20V
Nominal Output Voltage (Min/Fixed) 5V
Output Current 3A
Operating Supply Current 20mA
Control Protection Features Over Current, Over Temperature
Temperature Range - Operating -55°C to 150°C
Regulator Topology Positive Fixed
Output Voltage 5V
Mounting Through Hole
Case / Package TO-3
Win Source Part Number 206290-LM123K
Popularity Medium
Supply and Demand Status Limited
Ultra Librarian 3D Model Ultra Librarian LM123K CAD Model

Description

The LM123K from STMicroelectronics is a robust, high-performance voltage regulator designed for a wide array of applications. This component is part of the LM123 series, which are 3-terminal 5A positive adjustable voltage regulators that offer exceptional output voltage stability and low voltage drop, making it ideal for high-reliability requirements and demanding environments.

Key Features

  • Adjustable Output Voltage: The LM123K can be adjusted over a 1.2 to 32V range with only two external resistors. This feature allows for great flexibility in customizing the output to meet specific circuit requirements.
  • High Current Capability: With a guaranteed 5A output current, this regulator can handle high power applications with ease, ensuring consistent performance even under heavy load conditions.
  • Thermal Overload Protection: The device is equipped with thermal overload protection that shuts down the regulator should the internal temperature exceed safe operating limits, thereby protecting the device from potential damage.
  • Short Circuit Protection: The LM123K includes inherent short circuit protection, which limits the peak output current, ensuring that the regulator and your circuit remain safe in the event of a fault condition.

Applications

The LM123K is versatile and can be used in a variety of applications such as:

  • Power supplies for high-end audio and video equipment
  • Constant current regulators
  • Adjustable power supplies
  • Battery chargers
  • Automotive electronics

Quality and Reliability

STMicroelectronics is known for its commitment to quality, and the LM123K is no exception. This voltage regulator is manufactured to the highest standards, ensuring reliable operation even in the toughest conditions. Whether you're designing for industrial, commercial, or automotive applications, the LM123K offers the performance and dependability you need.

Package Information

The LM123K is available in a TO-3 package, which is known for its high power dissipation capability. This makes it suitable for mounting on a heatsink, which is often necessary in high-power applications.

You May Also Be Interested in

ON Semiconductor
IC REG LINEAR 1.5V 500MA 6XDFN / Linear Voltage Regulator IC Positive Fixed 1 Output 500mA 6-XDFN (1.2x1.2)
Need more? Email Us
ON Semiconductor
IC REG LINEAR 1.5V 300MA 6XDFN / Linear Voltage Regulator IC Positive Fixed 1 Output 300mA 6-XDFN (1.2x1.2)
Need more? Email Us
Texas Instruments
IC REG LIN FIXED POS STNDRD REG / Linear Voltage Regulator IC Positive Fixed 1 Output 150mA 4-DSBGA
Need more? Email Us
Analog Devices Inc.
IC REG LINEAR 4.2V 2A 8LFCSP / Linear Voltage Regulator IC Positive Fixed 1 Output 2A 8-LFCSP-WD (3x3)
Lowest to $4.2305
ON Semiconductor
IC REG LINEAR 0.8V 300MA 6XDFN / Linear Voltage Regulator IC Positive Fixed 1 Output 300mA 6-XDFN (1.2x1.2)
Need more? Email Us
Analog Devices Inc.
IC REG BUCK 1.82V 600MA TSOT23-5 / Buck Switching Regulator IC Positive Fixed 1.82V 1 Output 600mA SOT-23-5 Thin, TSOT-23-5
Lowest to $1.2222
ON Semiconductor
IC REG LINEAR 1.8V 200MA 6XDFN / Linear Voltage Regulator IC Positive Fixed 1 Output 200mA 6-XDFN (1.5x1.5)
Need more? Email Us
ON Semiconductor
IC REG LINEAR 1.8V 500MA 6XDFN / Linear Voltage Regulator IC Positive Fixed 1 Output 500mA 6-XDFN (1.2x1.2)
Lowest to $0.3910
Microchip Technology
IC REG LIN POS PROG 150MA 10MSOP / Linear Voltage Regulator IC Positive Programmable 2 Output 150mA, 150mA 10-MSOP
Need more? Email Us

Top Sellers

JST Sales America Inc.
CONN HEADER GH TOP 4POS 1.25MM
Lowest to $0.1782
Texas Instruments
DARLINGTON TRANSISTOR ARRAY | TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $5.4647
Nexperia USA Inc.
Counter Shift Registers 8-bit serial-in, serial or parallel-out shift register with output latches; 3 - state
Lowest to $0.1046
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.3053
TDK InvenSense
IMU ACCEL/GYRO/TEMP I2C/SPI LGA
Lowest to $10.4542
Texas Instruments
IC BRIDGE DRIVER PAR 36HSSOP
Lowest to $19.3374
Bosch Sensortec
SENSOR FLIPCORE/HALL SPI 12WLCSP / Geomagnetic Sensor
Lowest to $0.7841
JST Sales America Inc.
CONN HEADER SMD 6POS 1.25MM
Lowest to $0.4985
FTDI, Future Technology Devices International Ltd
USB-to-UART 1-CH 512byte FIFO 5V 12-Pin DFN EP T/R / IC USB SERIAL BASIC UART 12DFN
Lowest to $4.5143
Kemet
RELAY GEN PURPOSE DPDT 2A 5V
Lowest to $0.9677
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0357
FTDI, Future Technology Devices International Ltd
IC USB FS SERIAL UART 28-SSOP
Lowest to $4.9895
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $5.9399
Bosch Sensortec
ACCELEROMETER 16LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $11.8797
TDK InvenSense
MOTION SENSOR / Accelerometer, Gyroscope, 6 Axis Sensor Output
Lowest to $17.8196

Pricing & Ordering

Quantity Unit Price Ext. Price
6+ $10.0855 $60.5130
14+ $8.2756 $115.8584
22+ $8.0169 $176.3718
30+ $7.7581 $232.7430
39+ $7.4994 $292.4766
52+ $6.7233 $349.6116
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
Estimate Shipping
Enter your destination to get a shipping estimate
*
Availability: 9,000 pieces
MOQ: 6 pcs
Order Increment : 1 pcs
*Need More Quantity? *Request a Bulk Quantity Quotation?

Shipping Information

Shipped from HK warehouse
Expected Shipping Date
Ship today if order in (HKT)
Supplier Lead-Time Call for availability
Estimate shipping fee
Enter your destination to get a shipping estimate
Estimate Shipping Fee

Contact Us

*
*
*

FRAUD PREVENTION REMINDERS

Recently, We have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud. Please note that the only official website & email suffix are win-source.group, win-source.net, winsourcectl.com and winsourceelec.com

More details about fraud prevention
RFQ RFQ RFQ BOM BOM BOM API API API Sell Sell Sell your Excess