Datasheet

LM337L
SNVS780D –MAY 1998–REVISED MAY 2013 www.ti.com
Typical Applications
1.2V-25V Adjustable Regulator
Full output current not available at high input-output voltages
†C1 = 1μF solid tantalum or 10μF aluminum electrolytic required for stability
*C2 = 1μF solid tantalum is required only if regulator is more than 4″ from power supply filter capacitor
Regulator with Trimmable Output Voltage
Trim Procedure:
—If V
OUT
is −23.08V or bigger, cut out R3 (if smaller, don't cut it out).
—Then if V
OUT
is −22.47V or bigger, cut out R4 (if smaller, don't).
—Then if V
OUT
is −22.16V or bigger, cut out R5 (if smaller, don't).
This will trim the output to well within 1% of −22.00 V
DC
, without any of the expense or trouble of a trim pot (see LB-
46). Of course, this technique can be used at any output voltage level.
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