TL317P Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TL317P is an adjustable positive voltage regulator from Texas Instruments capable of supplying 100 mA over an output voltage range of 1.25 V to 32 V. It features low dropout performance and adjustable output with just two external resistors.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TL317P Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Adjustable output voltage from 1.25 V to 32 V with two external resistors
- 100 mA continuous output current capability
- Low dropout voltage for efficient linear regulation
- Built-in thermal and short-circuit protection
- Wide input voltage range suitable for various supply rails
Applications
The TL317P is well suited for adjustable power supply designs in industrial and consumer electronics, providing precise regulated voltages from 1.25 V to 32 V at up to 100 mA. It is commonly used in battery chargers, small bench power supplies, and on-board regulation stages where a compact linear regulator with adjustable output is needed. The device also finds use in reference voltage circuits and bias supply applications requiring stable, noise-sensitive DC outputs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TL317P:
Adjustable Positive Standard Regulator, 1.2V Min, 32V Max, BIPolar, PDSO8
Adjustable Positive Standard Regulator, 1.2V Min, 32V Max, BIPolar, PDSO8
Adjustable Positive Standard Regulator, 1.25V Min, 32V Max, BIPolar, PDSO8
Adjustable Positive Standard Regulator, 1.25V Min, 32V Max, BIPolar, PDSO8
Frequently Asked Questions
What output voltage range can the TL317P regulate, and how is it set?
The TL317P adjusts its output from 1.25 V to 32 V using two external resistors connected between the output, adjust, and ground pins. The output voltage is set by the ratio of these two resistors, making it easy to target any voltage within the 1.25 V to 32 V range for a given design.
How much output current can the TL317P continuously supply in a typical circuit?
The TL317P can supply up to 100 mA of continuous output current, making it suitable for low-power regulated supply rails, bias circuits, and small signal loads where current demand stays below 100 mA.
In which package does the TL317P come, and what board footprint should designers plan for?
The TL317P is packaged in a TO-92 style plastic package with 3 pins occupying roughly 5 mm × 5 mm of board area. Designers should plan for a through-hole footprint with 1.27 mm lead spacing, and include adequate copper area for thermal dissipation at elevated currents approaching 100 mA.
When would the TL317P be a suitable lower-current alternative to the LM317?
The TL317P is a practical alternative to the LM317 in applications needing less than 100 mA output current, such as bias rails for op-amp circuits or small logic supply regulators. Its smaller package reduces board space by over 50 % compared to the LM317 in TO-220, and both share the same 1.25 V to 32 V adjustable output range.
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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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