MIC2875 Datasheet, PDF (7/24 Pages) Microchip Technology – 4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Disconnect

MIC2875
2.0 TYPICAL PERFORMANCE CURVES
100
90
V_IN = 3.6V
80
V_IN = 3.0V
70
V_IN = 2.5V
60
50
0.001
V_OUT = 5.0V
L = 1μH
C_OUT = 22μF
0.010
0.100
1.000
LOAD CURRENT (A)
FIGURE 2-1:
Efficiency vs. Load Current.
5.10
5.05
V_IN = 3.5V
V_OUT = 5.0V
L = 1μH
C_OUT = 22μF
ADJUSTABLE
R2 = 910kΩ
R3 = 200kΩ
5.00
4.95
T_A = 125℃
T_A = 25℃
T_A = -40℃
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
V_OUT = 5.0V
L = 1μH
C_OUT = 22μF
I_OUT = 500mA
2.04
2.02
2.00
1.98
V_IN = 3.6V
V_OUT = 5.0V
L = 1μH
C_OUT = 22μF
I_OUT = 0A
1.96
-50 -25 0
25 50 75 100 125 150
TEMPERATURE (℃)
FIGURE 2-4:
Temperature.
Oscillator Frequency vs.
4.00
3.50
3.00
V_EN = 0V
V_IN = 0.3V
V_OUT = 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 (℃)
FIGURE 2-5:
Output Shutdown Current
vs. Temperature.
0.904
0.902
5.00
4.90
T_A = 125℃
ADJUSTABLE
R2 = 910kΩ
R3 = 200kΩ
T_A = 25℃
T_A = -40℃
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
V_OUT = 5.0V
R2 = 910kΩ
R3 = 200kΩ
0 25 50 75 100 125 150
TEMPERATURE (℃)
Feedback Voltage vs.
 2015 Microchip Technology Inc.
DS20005549A-page 7