MIC24045 Datasheet, PDF (10/46 Pages) Microchip Technology – I2C Programmable, 4.5V-19V Input, 5A Step-Down Converter

MIC24045
Note: Unless otherwise indicated, V_IN = 12V, f_S = 660 kHz, I_LIM = I_{LIM_LS3}, L = 2.2 µH, T_A = +25°C.
100
95
90
85
80
75
70
65
60
55
50
0
VVo_Ou_Ut_T==0.08.V8V
VVoOuUtT==1.10.V0V
VVo_Ou_Ut_T==1.12.V2V
VVo_Ou_Ut_T==1.15.V5V
VVo_Ou_UTt==1.18.V8V
VVo_Ou_Ut_T==3.33.V3V
1
2
3
I_OUT (A)
V_IN = 5V
f_s = 310 kHz
4
5
FIGURE 2-13:
Efficiency vs. Load Current.
100
90
80
70
60
50
40
0
VVoOuUTt==0.08.V8V
VVoOuUTt==1.12.V2V
VVo_Ou_UTt==1.18.V8V
VVoOuUtT==5V5.0V
VVoOuUtT==1.10.V0V
VVo_Ou_Ut_T==1.15.V5V
VVo_Ou_Ut_T==3.33.V3V
1
2
3
I_OUT (A)
V_IN = 12V
f_s = 660 kHz
4
5
FIGURE 2-16:
Efficiency vs. Load Current.
100
95
90
85
80
75
70
65
60
55
50
0
1
FIGURE 2-14:
VVo_Ou_Ut_T==0.08.V8V
VVo_Ou_Ut_T==1.12.V2V
VVo_Ou_Ut_T==1.18.V8V
VVo_Ou_Ut_T==5V5.0V
VVoOuUtT==1.10.V0V
VVoOuUTt==1.15.V5V
VVo_Ou_Ut_T==3.33.V3V
V_IN = 12V
f_s = 310 kHz
2
3
4
5
I_OUT (A)
Efficiency vs. Load Current.
100
95
90
85
80
75
70
65
60
55
50
0
SVe_Or_Uie_Ts=10.8V
SVe_Or_Uie_Ts=21.0V
SVe_Or_Uie_Ts=31.2V
SVe_Or_Uie_Ts=41.5V
SVe_Or_Uie_T s=51.8V
SVe_Or_Uie_Ts=63.3V
1
2
3
I_OUT (A)
V_IN = 5V
f_s = 1.2 MHz
4
5
FIGURE 2-17:
Efficiency vs. Load Current.
100
95
90
85
80
75
70
65
60
55
50
0
VVo_Ou_Ut_T==0.08.V8V
VVo_Ou_Ut_T==1.10.V0V
VVo_Ou_Ut_T==1.12.V2V
VVo_Ou_Ut_T==1.15.V5V
VVo_Ou_Ut_T==1.18.V8V
VVo_Ou_Ut_T==3.3.V3V
1
2
3
I_OUT (A)
V_IN = 5V
f_s = 660 kHz
4
5
FIGURE 2-15:
Efficiency vs. Load Current.
100
90
80
70
60
50
40
0
1
FIGURE 2-18:
VVo_Ou_Ut_T==0.08.V8V
VVo_Ou_Ut_T==1.12.V2V
VVo_Ou_Ut_T==1.18.V8V
VVo_Ou_Ut_T==5V5.0V
VVo_Ou_Ut_T==1.10.V0V
VVo_Ou_Ut_T==1.15.V5V
VVo_Ou_Ut_T==3.33.V3V
V_IN = 12V
f_s = 1.2 MHz
2
3
4
5
I_OUT (A)
Efficiency vs. Load Current.
DS20005568A-page 10
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