MCP16321_16 Datasheet, PDF (10/34 Pages) Microchip Technology – 24V Input, 1A/2A Output, High Efficiency Synchronous Buck Regulator

MCP16321/2
Note: Unless otherwise indicated, V_IN = 12V, EN = Floating (Internally pulled up), C_IN = 20 µF, C_OUT = 2x22 µF,
L = 4.7 µH (XAL6060-472MEB), I_LOAD = 200 mA, T_A = +25°C. MCP16321 maximum output current = 1A.
8
7
6
5
4
3
2
1
0
6
10
FIGURE 2-19:
Voltage.
14
18
22
V_IN (V)
Shutdown Current vs. Input
4.90
4.85
4.80
4.75
4.70
4.65
4.60
4.55
4.50
4.45
-40
-10
20
50
80
110
Ambient Temperature (°C)
FIGURE 2-20:
Temperature.
Shutdown Current vs.
1020
1015
1010
1005
1000
995
990
985
980
-40
-10
20
50
80
110
Ambient Temperature (°C)
FIGURE 2-22:
Oscillator Frequency vs.
Temperature (I_OUT = 300 mA).
5.50
5.45
5.40
I_OUT = 0A
5.35
5.30
5.25
5.20
-40
-10
20
50
80
110
Ambient Temperature (°C)
FIGURE 2-23:
Input Quiescent Current vs.
Temperature (No Load, Switching).
3.300
3.298
3.296
3.294
3.292
3.290
3.288
3.286
3.284
-40
I_OUT = 0.1A
I_OUT = 1A
-10
20
50
80
110
Ambient Temperature (°C)
FIGURE 2-21:
Temperature.
Output Voltage vs.
2.42
2.40
2.38
I_OUT = 0A
2.36
2.34
2.32
2.30
2.28
-40
-10
20
50
80 110
Ambient Temperature (°C)
FIGURE 2-24:
Input Current vs.
Temperature (No Load, No Switching).
DS20002285B-page 10
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