LM3674_15 Datasheet, PDF (7/26 Pages) Texas Instruments – LM3674 2-MHz, 600-mA Step-Down DC-DC Converter in SOT-23

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Typical Characteristics (continued)
(unless otherwise stated: V_IN = 3.6 V, V_OUT = 1.5 V, T_A = 25°C)
600
V_IN = 2.7V
550
V_IN = 4.5V
500
V_IN = 3.6V
450
PFET
400
V_IN = 2.7V
350
300
250
NFET
200
150
V_IN = 3.6V
V_IN = 4.5V
100
-30 -10 10 30 50 70 90 110
TEMPERATURE (°C)
Figure 7. R_DSON vs Temperature
LM3674
SNVS405G – DECEMBER 2005 – REVISED APRIL 2015
2.00
1.98 V_IN = 4.5V
_
1.96
_
1.94
_
I_OUT = 300 mA
V_IN = 3.6V
V_IN = 2.7V
1.92
_
1.90
_
1.88
__-30
-
10
_
10
50
_ ³⁰ _
TEMPERATURE (°C)
70
_
90
_
Figure 8. Switching Frequency vs Temperature
V_OUT = 1.2 V, L = 2.2 µH, DCR = 200 mΩ
Figure 9. Efficiency vs Output Current
V_OUT = 1.5 V, L = 2.2 µH, DCR = 200 mΩ
Figure 10. Efficiency vs Output Current
V_OUT = 1.8 V, L = 2.2 µH, DCR = 200 mΩ
Figure 11. Efficiency vs Output Current
V_OUT = 3.3 V, L = 2.2 µH, DCR = 200 mΩ
Figure 12. Efficiency vs Output Current
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