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MIC2875 Datasheet, PDF (7/24 Pages) Microchip Technology – 4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Disconnect | |||
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MIC2875
2.0 TYPICAL PERFORMANCE CURVES
100
90
VIN = 3.6V
80
VIN = 3.0V
70
VIN = 2.5V
60
50
0.001
VOUT = 5.0V
L = 1μH
COUT = 22μF
0.010
0.100
1.000
LOAD CURRENT (A)
FIGURE 2-1:
Efficiency vs. Load Current.
5.10
5.05
VIN = 3.5V
VOUT = 5.0V
L = 1μH
COUT = 22μF
ADJUSTABLE
R2 = 910kΩ
R3 = 200kΩ
5.00
4.95
TA = 125â
TA = 25â
TA = -40â
4.90
0.0
FIGURE 2-2:
Current.
0.5
1.0
1.5
2.0
LOAD CURRENT (A)
Output Voltage vs. Load
5.20
5.10
VOUT = 5.0V
L = 1μH
COUT = 22μF
IOUT = 500mA
2.04
2.02
2.00
1.98
VIN = 3.6V
VOUT = 5.0V
L = 1μH
COUT = 22μF
IOUT = 0A
1.96
-50 -25 0
25 50 75 100 125 150
TEMPERATURE (â)
FIGURE 2-4:
Temperature.
Oscillator Frequency vs.
4.00
3.50
3.00
VEN = 0V
VIN = 0.3V
VOUT = 5.5V
2.50
2.00
1.50
1.00
-50 -25
ADJUSTABLE
R2 = 910kΩ
R3 = 200kΩ
0 25 50 75 100 125 150
TEMPERATURE (â)
FIGURE 2-5:
Output Shutdown Current
vs. Temperature.
0.904
0.902
5.00
4.90
TA = 125â
ADJUSTABLE
R2 = 910kΩ
R3 = 200kΩ
TA = 25â
TA = -40â
4.80
2.5
3.0
3.5
4.0
4.5
5.0
INPUT VOLTAGE(V)
FIGURE 2-3:
Voltage.
Output Voltage vs. Input
0.900
0.898
0.896
-50 -25
FIGURE 2-6:
Temperature.
ADJUSTABLE
VOUT = 5.0V
R2 = 910kΩ
R3 = 200kΩ
0 25 50 75 100 125 150
TEMPERATURE (â)
Feedback Voltage vs.
ï£ 2015 Microchip Technology Inc.
DS20005549A-page 7
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