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LM338 5A Adjustable Regulator

LM338

Texas Instrumentspower regulator

The LM338 is an adjustable positive voltage regulator capable of supplying up to 5A over an output range from 1.2V to 32V, with features like time-dependent current limiting and thermal overload protection.

Manufacturer datasheet
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Specifications

8
Operating Voltage
3 V ≤ (VIN – VOUT) ≤ 40 V
Supply Current
5 A
Interface
GPIO
Resolution
0.1% for load regulation, 0.005% for line regulation
Range
Output voltage range: 1.2 V to 32 V
Accuracy
±0.5% for load regulation, ±0.04% for line regulation at 25°C
Temperature Range
-55°C to 150°C (LM338)
Package
NDS (TO-CAN) or NDE (TO-220)

Pinout

3

Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.

PinNameFunctionsNotes
ADJOutput voltage adjustment pin
GPIO
Connect to a resistor divider to set VO.
VINSupply input pin
POWER
Input supply for the regulator.
VOUTVoltage output pin
GND
Output voltage is adjustable and can be set by connecting a resistor divider to the ADJ pin.

Interactive pinout

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