Datasheet

LM120, LM320-N
SNVS756C –APRIL 1998–REVISED APRIL 2013 www.ti.com
See Performance (Typical)
*Resistor tolerance of R4 and R5 determine matching of (+) and (−) outputs.
**Necessary only if raw supply filter capacitors are more than 2 inches from regulators.
Figure 20. ±15V, 1 Amp Tracking Regulators
Performance (Typical)
Load Regulation at ΔI
L
= 1A 10 mV 1 mV
Output Ripple, C
IN
= 3000 μF,
100 μVrms 100 μVrms
I
L
= 1A
Temperature Stability +50 mV +50 mV
Output Noise 10 Hz ≤ f ≤ 10 kHz 150 μVrms 150 μVrms
Light Controllers Using Silicon Photo Cells
*Lamp brightness increases until i
I
= 5V/R1 (i
I
can be set as low as 1 μA).
†Necessary only if raw supply filter capacitor is more than 2 inches from LM320MP.
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