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| LM3671MF-12 Datasheet, PDF (11/38 Pages) Texas Instruments – LM3671, LM3671Q 2MHz, 600mA Step-Down DC-DC Converter | |||
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www.ti.com
LM3671
LM3671Q
SNVS294Q â NOVEMBER 2004 â REVISED NOVEMBER 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
LM3671MF/TL/LC, Circuit of Figure 1, VIN= 3.6V, VOUT= 1.5V, TA= 25°C, unless otherwise noted.
Efficiency vs. Output Current
(VOUT = 1.5V, L= 2.2 µH)
100
VIN = 2.7V
VOUT = 1.5V
90
Efficiency vs. Output Current
(VOUT = 1.8V, L= 2.2 µH)
100
VIN = 3.0V
VOUT = 1.8V
90
80
70
VIN = 2.7V
60
VIN = 4.5V
50
VIN = 3.6V
40
80
VIN = 3.0V
70
VIN = 4.5V
60
50
VIN = 3.6V
40
30
30
20
0.01
0.10 1.00 10.00 100.00 1000.00
OUTPUT CURRENT (mA)
Figure 19.
20
0.01
0.10 1.00 10.00 100.00 1000.00
OUTPUT CURRENT (mA)
Figure 20.
Efficiency vs. Output Current
(VOUT = 2.5V, L= 2.2 µH)
Efficiency vs. Output Current
(VOUT = 3.3V, L= 2.2 µH)
VOUT
VIN
Figure 21.
Line Transient Response
VOUT = 1.5V (PWM Mode)
20 mV/DIV
AC Coupled
3.6V
3.0V
VOUT = 1.5V
IOUT = 400 mA
40 2s/DIV
Figure 23.
Figure 22.
Line Transient Response
VOUT = 2.5V (PWM Mode)
Figure 24.
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