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LM338K
IC REG LINEAR POS ADJ 5A TO3
- Manufacturer
- Mfr. Part #LM338K
- Package
- Datasheet LM338K DataSheet
- In Stock4943
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Specifications
| Part Status | Obsolete |
| Base Product Number | LM338 |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 35V |
| Voltage - Output (Min/Fixed) | 1.2V |
| Voltage - Output (Max) | 32V |
| Current - Output | 5A |
| PSRR | 75dB ~ 60dB (120Hz) |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | 0°C ~ 125°C |
| Mounting Type | Through Hole |
| Package | TO-204AA, TO-3 |
| Supplier Device Package | TO-3 |
| Packaging | Tube |
Overview
Description
The device is often housed in a TO-3 package, which provides efficient heat dissipation, essential for high-current applications. With its simple design—requiring only two external resistors to set the output voltage—the LM338K is user-friendly and adaptable for various custom voltage solutions. Its high output current capability and low dropout voltage make it suitable for battery chargers, constant current regulators, and other high-current circuits.
Moreover, the LM338K’s performance remains stable across varying loads and temperatures, ensuring consistent output. Its design simplicity and reliability make it a popular choice among engineers and hobbyists for power regulation tasks.
Features
1. Wide Input Voltage Range: It can operate with a broad input voltage, making it suitable for various applications.
2. Adjustable Output: The regulator allows for precision tuning of the output voltage using external resistors, providing customization for different needs.
3. High Current Capability: With a current output of 5A, it is ideal for medium to high-power applications.
4. Thermal Overload Protection: The device includes built-in protection against overheating, enhancing reliability and safety.
5. Short-Circuit Protection: It prevents damage from output short circuits, ensuring continuous operation.
6. Safe Area Protection: This feature prevents the device from operating outside its safe limits, protecting both the regulator and load.
7. Package Options: Available in a TO-3 metal can package, it is designed for reliable performance with efficient heat dissipation.
The LM338K is widely used in applications requiring adjustable power supplies, battery chargers, and constant current regulators due to its robust performance and protection features.
Package
Pinout
1. Input (Pin 1): This is the input pin where the unregulated voltage is supplied. The IC regulates this voltage to provide a stable output.
2. Output (Pin 2): The output pin delivers the regulated voltage. The output voltage can be adjusted using external resistors connected between the output, adjust pin, and ground.
3. Case/Adjustment (Case Pin): The metal case often acts as a heat sink and is also used as the adjustment terminal. By connecting a resistor between this terminal and the output, you can set the desired output voltage.
The LM338K can supply a current of up to 5A and the output voltage can be adjusted from 1.2V to 32V. Its robust design makes it suitable for various power supply applications.
Manufacturer
Application
Equivalent
Shipping
Shipping MethodsWe
offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.
Shipping Fee Reference (DHL/FedEx):
DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.
FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.
UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.
TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.
EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.
Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.
Payments
Payment Methods
The Payment term is 100% Prepaid.
Currently, we only accept the below payment methods:
1. PayPal
2. Credit/ Debit Card
3. Wire Transfer
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