Datasheet

LM20123
www.ti.com SNVS524E –OCTOBER 2007–REVISED MARCH 2013
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise specified: C
IN
= C
OUT
= 100 µF, L = 1.0 µH (Coilcraft MSS1038), V
IN
= 5V, V
OUT
= 1.2V, R
LOAD
= 1.2Ω, T
A
=
25°C for efficiency curves, loop gain plots and waveforms, and T
J
= 25°C for all others.
Efficiency vs. Efficiency vs.
Load Current (V
IN
= 5V) Load Current (V
IN
= 3.3V)
Figure 1. Figure 2.
High-Side FET resistance Low-Side FET resistance
vs. Temperature vs. Temperature
Figure 3. Figure 4.
Error Amplifier Gain
vs. Frequency Line Regulation
Figure 5. Figure 6.
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