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LM317DCYR
IC REG LIN POS ADJ 1.5A SOT223-4
- Manufacturer
- Mfr. Part #LM317DCYR
- Package SOT-223 (DCY)-4
- Datasheet LM317DCYR DataSheet
- In Stock3627
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Specifications
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.25V |
| Voltage-Output(Max) | 37V |
| Current-Output | 1.5A |
| PSRR | 64dB ~ 57dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-261-4, TO-261AA |
Overview
Description
This device is packaged in a surface-mount SOT-223 configuration, making it suitable for compact and densely packed circuit boards. The LM317DCYR features internal current limiting, thermal overload protection, and safe area compensation, ensuring reliable operation even under challenging conditions.
To set the desired output voltage, only two external resistors are required. This flexibility, combined with its robust performance, makes it ideal for use in power supplies, battery chargers, and adjustable power applications. Its ease of use and reliability have made it a popular choice among engineers and hobbyists alike for regulating voltage in electronic circuits.
Features
1. Adjustable Output Voltage: It provides an output voltage range from 1.25V to 37V, adjustable with two external resistors.
2. Output Current: Capable of delivering over 1.5A of load current with adequate heat sinking.
3. Line and Load Regulation: Offers excellent line regulation of 0.01% per volt and load regulation of 0.1%.
4. Thermal Overload Protection: Built-in protection to prevent damage due to overheating.
5. Current Limit Protection: Features internal current limiting to protect against short circuits.
6. Safe Operating Area (SOA) Protection: Designed to ensure reliability by maintaining operation within safe limits.
7. Package Type: Comes in a SOT-223 package, which is compact and suitable for space-constrained designs.
8. Temperature Range: Operates over a wide temperature range from -40°C to 125°C, making it suitable for various environments.
These features make the LM317DCYR an ideal choice for power supply applications requiring precision and durability.
Package
Pinout
1. Input (Pin 3): This pin receives the input voltage which should be at least 3V higher than the desired output voltage for proper regulation.
2. Output (Pin 2): This pin provides the regulated output voltage. The voltage can be adjusted by using two external resistors.
3. Adjust (Pin 1): This pin is used to set the output voltage. By connecting a resistor divider network between the output and adjust pins, the desired output voltage can be achieved.
The LM317DCYR is commonly used in power supplies for various electronic devices due to its ability to provide a versatile and reliable voltage regulation solution.
Manufacturer
Application
Equivalent
1. L78xx Series (for fixed output)
2. LM1117
3. LM317T
4. LT1086
5. UA78xx Series (for fixed output)
6. NTE956
7. MC317T
These alternatives might have slight variations in specifications, so it’s essential to check the datasheets to ensure compatibility with your specific application requirements.
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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