LM317H Texas Instruments Integrated Circuit (Other) In Stock
LM317H is a 1.5A adjustable output linear voltage regulator from Texas Instruments. It supports input voltages up to 40V with a 2.25V dropout voltage and adjustable output. From $8, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- LM317H Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $8.0000(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.5A output current capability for medium-power applications
- Adjustable output voltage with input range from 3V to 40V
- Low 2.25V nominal dropout voltage for efficient regulation
- Built-in thermal overload and short-circuit protection
- Metal can (TO-39) package for excellent thermal dissipation
Applications
The LM317H is widely used in bench power supplies, battery charging circuits, and precision voltage reference designs. Its adjustable output makes it ideal for industrial control systems, audio equipment power rails, and motor drive pre-regulators. The robust metal can package suits applications requiring reliable operation in harsh thermal environments.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Nom | 2.25V |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 3V |
| Input-Output Voltage Differential-Max | 40V |
| Input-Output Voltage Differential-Min | 3V |
| JESD-30 Code | O-MBCY-W3 |
| JESD-609 Code | e4 |
| Line Regulation-Max (%/V) | 0.05 |
| Load Regulation-Max(%) | 1% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 1.5A |
| Output Voltage1-Max | 37V |
| Output Voltage1-Min | 1.2V |
| Package Body Material | METAL |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Packing Method | BULK |
| Qualification Status | Not Qualified |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Terminal Finish | Gold (Au) |
| Terminal Form | WIRE |
| Terminal Position | BOTTOM |
| Voltage Tolerance-Max | 5% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM317H:
Regulator, 1.2V Min, 37V Max, BIPolar, MBCY3
Adjustable Positive Standard Regulator, 1.25V Min, 37V Max, BIPolar, PSFM3
Adjustable Positive Standard Regulator, 1.2V Min, 37V Max, BIPolar, PSFM3
Adjustable Positive Standard Regulator, 1.25V Min, 57V Max, BIPolar, MBCY3
Frequently Asked Questions
What is the output voltage range of the LM317H?
The LM317H provides an adjustable output voltage range from 1.25V to 37V, set by an external resistor divider connected to the ADJ pin. The input voltage can range from 3V to 40V, with a maximum input-to-output differential of 40V.
What applications is the LM317H suitable for?
The LM317H is suitable for bench power supplies, battery chargers, precision voltage references, industrial control systems, audio equipment power rails, and motor drive pre-regulators. Its 1.5A output current and wide input voltage range make it versatile for many medium-power linear regulation needs.
What package does the LM317H use and how does it affect thermal performance?
The LM317H uses a metal can (TO-39 / O-MBCY-W3) 3-lead package, which offers superior thermal dissipation compared to plastic packages. This makes it well suited for applications with higher power dissipation requirements or operation in elevated ambient temperatures.
Is the LM317H RoHS compliant?
Yes, the LM317H is Pb-free and RoHS compliant (JESD-609 code e4), making it suitable for use in environmentally conscious designs and modern consumer and industrial electronics that require lead-free components.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $16.0000 | $16.00 |
| 218+ | $8.6400 | $1883.52 |
| 464+ | $8.0000 | $3712.00 |
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