MCP16301_15 Datasheet, PDF (6/40 Pages) Microchip Technology – High-Voltage Input Integrated Switch Step-Down Regulator

MCP16301/H
Note: Unless otherwise indicated, V_IN = EN = 12V, C_OUT = C_IN = 2 X 10 µF, L = 15 µH, V_OUT = 3.3V, I_LOAD = 200 mA,
T_A = +25°C.
5
4
V_OUT = 3.3V
3 _{IOUT = 0 mA}
2
1
V_IN = 6V
V_IN = 12V
V_IN = 30V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (°C)
FIGURE 2-7:
Temperature.
Input Quiescent Current vs.
1800
1600
1400
1200
1000
V_IN = 30V
V_IN = 12V
V_IN = 6V
800
V_OUT = 3.3V
600
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (°C)
FIGURE 2-10:
Peak Current Limit vs.
Temperature; V_OUT = 3.3V.
505
500
495
490
V_IN = 12V
V_OUT = 3.3V
I_OUT = 200 mA
485
480
475
470
465
460
455
-40 -20
0 20 40 60 80 100 120
Ambient Temperature (°C)
FIGURE 2-8:
Switching Frequency vs.
Temperature; V_OUT = 3.3V.
510
500
490
480
470
460
450
440
430
420
3
FIGURE 2-11:
T_A = 25°C
V_DS = 100 mV
3.5
4
4.5
5
Boost Voltage (V)
Switch R_DSON vs. V_BOOST.
95.5
95.4
95.3
V_IN = 5V
I_OUT = 200 mA
95.2
95.1
95
94.9
94.8
94.7
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (°C)
FIGURE 2-9:
Maximum Duty Cycle vs.
Ambient Temperature; V_OUT = 5.0V.
0.802
0.801
0.800
V_IN = 12V
V_OUT = 3.3V
I_OUT = 100 mA
0.799
0.798
0.797
0.796
-40 -20
FIGURE 2-12:
V_OUT = 3.3V.
0 20 40 60 80 100 120
Ambient Temperature (°C)
V_FB vs. Temperature;
DS20005004D-page 6
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