Datasheet

LM20343
www.ti.com SNVS559B –MAY 2008–REVISED APRIL 2013
Typical Performance Characteristics
Unless otherwise specified: V
VIN
= 12V, V
OUT
= 3.3V, L= 4.7µH, f
SW
=750kHz, C
SS
= 100nF, T
A
= 25°C for efficiency curves,
loop gain plots and waveforms, and T
J
= 25°C for all others.
Efficiency Efficiency
vs. vs.
Load Current Load Current
f
SW
= 350 kHz f
SW
= 500 kHz
Figure 2. Figure 3.
Efficiency
vs.
Load Current
f
SW
= 750 kHz Error Amplifier Gain
Figure 4. Figure 5.
Error Amplifier Phase Line Regulation
Figure 6. Figure 7.
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