LM138, LM338

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SNVS771B – MAY 1998 – REVISED APRIL 2013

Typical Applications

Regulator and Voltage Reference

1.2V–25V Adjustable Regulator

Temperature Controller

Full output current not available at high input-output voltages

†Optional—improves transient response. Output capacitors in the range of 1

μF to 1000 μF of aluminum or tantalum electrolytic are

commonly used to provide improved output impedance and rejection of transients.

*Needed if device is more than 6 inches from filter capacitors.

**R1 = 240

Ω for LM138. R1, R2 as an assembly can be ordered from Bourns:

MIL part no. 7105A-AT2-502

COMM part no. 7105A-AT7-502

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Product Folder Links: LM138 LM338