LT317AT
LT317A Linear Regulator
Inventory:6,919
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Part Number : LT317AT
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Package/Case : TO-220-3
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Manufacturer : Analog Devices
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Components Classification : Voltage Regulators , Linear, Low Drop Out Regulators
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Datesheet : LT317AT DataSheet (PDF)
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Series : LT317A
Overview of LT317AT
The LT317AT is a low-dropout adjustable linear voltage regulator chip optimized for high-speed and low-voltage operations. It provides excellent performance for specific applications, such as analog and digital signal switching.
Pinout
The LT317AT pinout refers to the configuration and function of each pin in its TO-220-3 package. This package typically includes a diagram showing the layout of the pins when viewed from the top down with pins named sequentially. Each pin on the LT317AT has a specific role such as power supply input, ground connection, or signal interface. The pinout details are crucial for integrating this component into a circuit as they ensure correct connections for optimal device performance. Designers and engineers must refer to the datasheet provided by the manufacturer to get accurate information regarding each pin's function and electrical characteristics.
Features
- Adjustable voltage regulator: The LT317AT is an adjustable linear voltage regulator that can provide output voltages from 1.2V to 37V.
- Output current up to 1.5A: This component can supply a maximum output current of 1.5A, making it suitable for applications requiring high currents.
- Thermal shutdown and current limit protection: The LT317AT features thermal shutdown and current limit protection to prevent damage from overheating or excessive current draw.
- Wide input voltage range of 4.2V to 40V: This component can operate with an input voltage range of 4.2V to 40V, providing flexibility in power supply design.
- High ripple rejection ratio: The LT317AT has a high ripple rejection ratio, ensuring that the output voltage remains stable and unaffected by noise or interference.
Applications
- Voltage regulation in power supplies: The LT317AT is suitable for use as an adjustable linear voltage regulator in power supply designs.
- Battery charging circuits: This component can be used to regulate the output voltage of a battery charger circuit.
- LED driver circuits: The LT317AT can be used to drive LED lights by regulating the output voltage and current.
- Sensor signal conditioning circuits: This component is suitable for use in sensor signal conditioning circuits where a stable reference voltage is required.
- Audio amplifier power supplies: The LT317AT can be used to regulate the output voltage of an audio amplifier power supply.
- Adjustable voltage regulators: This component is suitable for use as an adjustable linear voltage regulator in various applications.
- Industrial control systems: The LT317AT can be used in industrial control systems where a stable and adjustable reference voltage is required.
Equivalents
The LT317AT has several equivalents, including the LM317, LM337, and NCP1402. These components offer similar functionality and performance to the LT317AT but may have slightly different specifications or features.
Frequently Asked Questions
Q: What is the maximum output current of the LT317AT?
A: The maximum output current of the LT317AT is 1.5A.
Q: Can the LT317AT be used in high-frequency applications?
A: No, the LT317AT is not designed for use in high-frequency applications and may not perform well at frequencies above 100 kHz.
Q: What is the operating temperature range of the LT317AT?
A: The operating temperature range of the LT317AT is -40°C to 150°C.
Q: Is the LT317AT suitable for use in industrial control systems?
A: Yes, the LT317AT can be used in industrial control systems where a stable and adjustable reference voltage is required.
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Source Content uid | LT317AT | Rohs Code | No |
Part Life Cycle Code | Transferred | Ihs Manufacturer | LINEAR TECHNOLOGY CORP |
Part Package Code | TO-220 | Package Description | PLASTIC, TO-220, 3 PIN |
Pin Count | 3 | Manufacturer Package Code | T |
Reach Compliance Code | not_compliant | ECCN Code | EAR99 |
HTS Code | 8542.39.00.01 | Adjustability | ADJUSTABLE |
Dropout Voltage1-Nom | 3 V | Input-Output Voltage Differential-Max | 40 V |
Input-Output Voltage Differential-Min | 3 V | JESD-30 Code | R-PSFM-T3 |
JESD-609 Code | e0 | Line Regulation-Max (%/V) | 0.02 |
Load Regulation-Max(%) | 1% | Number of Functions | 1 |
Number of Outputs | 1 | Number of Terminals | 3 |
Operating Temperature TJ-Max | 125 °C | Operating Temperature TJ-Min | |
Output Current1-Max | 1.5 A | Output Voltage1-Max | 37 V |
Output Voltage1-Min | 1.2 V | Package Body Material | PLASTIC/EPOXY |
Package Equivalence Code | SIP3,.1TB | Package Shape | RECTANGULAR |
Package Style | FLANGE MOUNT | Qualification Status | Not Qualified |
Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR | Surface Mount | NO |
Technology | BIPOLAR | Terminal Finish | TIN LEAD OVER NICKEL |
Terminal Form | THROUGH-HOLE | Terminal Pitch | 2.54 mm |
Terminal Position | SINGLE |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy ?
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Shipping and Package ?
Shipping:For example, FedEx, JP, UPS, DHL,SAGAWA, or YTC.
Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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Payment ?
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If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

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LT317AT
LT317A Linear Regulator
Inventory:
6,919
Warranty & Returns
After Sales Service
What after-sales service can be provided?
We provide an extended quality assurance period of 365 days for all components we offer. If a return or exchange becomes essential, kindly adhere to these guidelines:
·Initiate the request within 90 days after the item's shipment date.
·Coordinate the return or exchange with our team.
·Keep the items in their original condition as delivered.
·Please be aware that the feasibility of returning or exchanging items is contingent upon an evaluation of their actual state upon return.
Shipping
What channels of transportation of goods does the website support?
We usually send out our orders during business days using FedEx, SF, UPS, or DHL. We're also here to assist with alternative shipping options. Should you require additional information about shipping particulars or expenses, please don't hesitate to get in touch with us.







Package
How to ensure that the parts will be intact during transportation?
The items we ship will be packaged in anti-static bags, ensuring ESD anti-static protection, while the outer packaging boasts exceptional durability and sealing. We offer packaging options like Tape and Reel, Cut Tape, Tube, or Tray to suit your needs.




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Accepted payment methods commonly encompass VISA, MasterCard, UnionPay, Western Union, PayPal, and various other options.
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