MIC45404 Datasheet, PDF (7/32 Pages) Microchip Technology – 19V 5A Ultra-Low Profile DC-to-DC Power Module

MIC45404
2.0 TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note: Unless otherwise indicated, V_IN = 12V; C_VDDA= 2.2 µF, T_A = +25°C.
35.00
33.00
31.00
Switching
I_OUT = 0A
29.00
27.00
25.00
23.00
21.00
19.00
17.00
15.00
468
f = 790 kHz
V_OUT = 3.3V
f = 565 kHz
V_OUT = 1.8V
f = 400 kHz
V_OUT = 1.0V
10 12 14 16 18 20
V_IN (V)
FIGURE 2-1:
Input Voltage.
Operating Current (IQ) vs.
1.3
1.25
Enable rising
1.2
1.15
1.1
1.05 ^{Enable falling}
1
0.95
0.9
4.5 6.5 8.5
10.5 12.5 14.5 16.5 18.5
V_IN (V)
FIGURE 2-4:
Voltage.
Enable Threshold vs. Input
5.2
5
4.8
4.6
4.4
4.2
I^IoVDuDtSA e⁼t ⁰0 ^mA
Io_VDu_DtS_A e=t 100.0m1 A
4
4.5 6.5 8.5 10.5 12.5 14.5 16.5 18.5
V_IN (V)
FIGURE 2-2:
Voltage.
V_DDA Voltage vs. Input
3
EN/DLY = 0V
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
45678
9 10 11 12 13 14 15 16 17 18 19
V_IN (V)
FIGURE 2-5:
Input Voltage.
EN/DLY Pull-up Current vs.
8.5
V_OUT = 1.2V
8 ^{f = 400 kHz}
7.5
7
6.5
6
5.5
5
4.5 5 5.5 6
I_LIM = high Z
I_LIM = V_DDA
I_LIM = GND
8 10 12 14 16 18 19
V_IN(V)
FIGURE 2-3:
Input Voltage.
Output Current Limit vs.
Switching
35
V_IN = 12V
I_OUT = 0A
30
25
f = 565 kHz
V_OUT = 1.8V
f = 790 kHz
V_OUT = 3.3V
20
f = 400 kHz
V_OUT = 1.0V
15
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
FIGURE 2-6:
Temperature.
Operating Current (IQ) vs.
 2015 Microchip Technology Inc.
DS20005478A-page 7