1.5-A, 40-V, adjustable linear voltage regulator
Product details
Parameters
Package | Pins | Size
Features
- Output voltage range adjustable
from 1.25 V to 37 V - Output current greater than 1.5 A
- Internal short-circuit current limiting
- Thermal overload protection
- Output safe-area compensation
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Description
The LM317 device is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. It requires only two external resistors to set the output voltage. The device features a typical line regulation of 0.01% and typical load regulation of 0.1%. It includes current limiting, thermal overload protection, and safe operating area protection. Overload protection remains functional even if the ADJUST terminal is disconnected.
Same functionality and pinout but is not an equivalent to the compared device:
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The LM317A-337N-EVM demonstrates canonical application of the LM317A adjustable regulator and its negative complement, the LM337-N. The evaluation module (EVM) is assesmbled with the SOT-223 package option for each device, supplying up to 1 A of load current. The EVM is designed for easy (...)
Features
- Output adjustable from 1.2 V to 37 V for LM317A and –1.2 V to –37 V for LM337-N
- 1-A load current with 1.5-A option
- Heat sink space provided for TO-220
- Large capacitor footprint space for customer selection
Design tools & simulation
Reference designs
Design files
-
download PMP20396 BOM.pdf (136KB) -
download PMP20396 Assembly Drawing.pdf (172KB) -
download PMP20396 PCB.pdf (912KB) -
download PMP20396 Altium.zip (858KB) -
download PMP20396 Gerber.zip (1800KB)
Design files
-
download PMP8930.1 BOM.pdf (120KB) -
download PMP8930.1 Gerber.zip (233KB) -
download PMP8930.2 BOM.pdf (120KB) -
download PMP8930.3 BOM.pdf (120KB) -
download PMP8930.4 BOM.pdf (120KB) -
download PMP8930.5 Schematic.pdf (133KB) -
download PMP8930.5 BOM.pdf (120KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
DDPAK/TO-263 (KTT) | 3 | View options |
SOT-223 (DCY) | 4 | View options |
TO-220 (KCS) | 3 | View options |
TO-220 (KCT) | 3 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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