LM317AT
- Mfr.Part #
- LM317AT
- Manufacturer
- Texas Instruments
- Package / Case
- TO-220-3
- Datasheet
- Download
- Description
- IC REG LIN POS ADJ 1.5A TO220-3
- Stock
- 18,882
- In Stock :
- 18,882
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Texas Instruments
- Product Category :
- Voltage Regulators - Linear
- Height :
- 4.7mm
- Mount :
- Through Hole
- Terminal Position :
- Single
- Number of Regulators :
- 1
- Number of Terminations :
- 3
- Output Configuration :
- Positive
- Max Output Voltage :
- 37V
- Protection Features :
- Over Temperature, Short Circuit
- Lead Free :
- Contains Lead
- Termination :
- Through Hole
- Min Output Voltage :
- 1.2V
- Accuracy :
- 1 %
- Width :
- 10.16mm
- Output Voltage :
- 37V
- JESD-609 Code :
- e0
- Dropout Voltage :
- 2V
- Dropout Voltage1-Nom :
- 2.25V
- Output Voltage Accuracy :
- 1 %
- Voltage - Output (Min/Fixed) :
- 1.25V
- Reference Voltage :
- 1.262V
- Max Output Current :
- 1.5A
- Number of Outputs :
- 1
- Packaging :
- Tube
- Number of Pins :
- 3
- REACH SVHC :
- No SVHC
- Max Supply Voltage :
- 40V
- PSRR :
- 80dB ~ 65dB (120Hz)
- Power Supply Rejection Ratio (PSRR) :
- 80dB
- Radiation Hardening :
- No
- ECCN Code :
- EAR99
- Min Input Voltage :
- 4.2V
- Pin Count :
- 3
- RoHS Status :
- Non-RoHS Compliant
- Base Part Number :
- LM317
- Length :
- 14.986mm
- Package / Case :
- TO-220-3
- Mounting Type :
- Through Hole
- Voltage - Input (Max) :
- 40V
- Load Regulation-Max(%) :
- 1%
- Operating Temperature :
- -40°C~125°C
- Min Supply Voltage :
- 3V
- Number of Functions :
- 1
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Quiescent Current :
- 60μA
- Current Rating :
- 1.5A
- Terminal Pitch :
- 2.54mm
- Output Type :
- Adjustable
- Lifecycle Status :
- NRND (Last Updated: 5 days ago)
- Thickness :
- 4.572mm
- Terminal Finish :
- Tin/Lead (Sn/Pb)
- Current - Quiescent (Iq) :
- 10mA
- Datasheets
- LM317AT

[Voltage Regulators - Linear] Texas Instruments LM317AT Overview
Introducing the LM317AT by Texas Instruments, a versatile and reliable linear positive voltage regulator integrated circuit designed to meet the diverse needs of electronic systems. Engineered with precision and performance in mind, this IC offers adjustable output voltage regulation with a maximum output current of 1.5A, housed in a TO-220-3 package for efficient thermal dissipation.
Whether you're building power supplies, battery chargers, or other electronic devices requiring stable and controllable voltage, the LM317AT provides a trusted solution. Its adjustable output voltage capability allows for flexibility in various applications, ensuring optimal performance and reliability.
With Texas Instruments' commitment to quality and innovation, combined with the LM317AT's features, this voltage regulator sets the standard for excellence in linear voltage regulation.
LM317AT Features
- Adjustable Output Voltage
- 1.5A Maximum Output Current
- Linear Positive Voltage Regulation
- TO-220-3 Package for Efficient Thermal Dissipation
- Wide Range of Input Voltage
- Low Dropout Voltage
- Short Circuit Protection
- Internal Thermal Overload Protection
- High Ripple Rejection
- Easy to Use and Implement
LM317AT Applications
- Power Supplies: The LM317AT is ideal for designing linear voltage regulators in various power supply systems, ensuring stable and adjustable output voltage for electronic devices.
- Battery Chargers: Utilize the LM317AT to regulate the charging voltage of batteries, ensuring safe and efficient charging processes for different battery chemistries and capacities.
- Audio Amplifiers: Achieve precise voltage regulation in audio amplifier circuits, enhancing audio quality and minimizing noise for an improved listening experience.
- Instrumentation: Incorporate the LM317AT in instrumentation systems to maintain accurate and stable voltage levels, essential for reliable measurement and control applications.
- LED Lighting: Control the voltage supplied to LEDs using the LM317AT, ensuring consistent brightness levels and extending the lifespan of LED lighting fixtures.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















