MCP1603
Typical Performance Curves (Continued)
Note: Unless otherwise indicated, VIN = SHDN = 3.6V, COUT = CIN = 4.7 µF, L = 4.7 µH, VOUT(ADJ) = 1.8V, ILOAD = 100 mA,
TA = +25°C. Adjustable or fixed output voltage options can be used to generate the Typical Performance Characteristics.
100
95
90
85
80
75
100
90
80
70
60
50
40
30
VOUT = 2.4V
VIN = 2.7V
VIN = 3.6V
IOUT = 100 mA
IOUT = 300 mA
IOUT = 500 mA
VIN = 4.2V
VOUT = 2.4V
3
3.5
4
4.5
5
5.5
0.1
1
10
100
1000
Input Voltage (V)
Output Current (mA)
FIGURE 2-7:
(V = 2.4V).
Efficiency vs. Input Voltage
FIGURE 2-10:
(V = 2.4V).
Efficiency vs. Output Load
OUT
OUT
100.0
97.5
95.0
92.5
90.0
87.5
85.0
100
VOUT = 3.3V
90
80
70
60
50
40
30
IOUT = 100 mA
IOUT = 300 mA
VIN = 3.6V
IOUT = 500 mA
VIN = 4.2V
VOUT = 3.3V
3.5 3.75
4
4.25 4.5 4.75
Input Voltage (V)
5
5.25 5.5
0.1
1
10
100
1000
Output Current (mA)
FIGURE 2-8:
(V = 3.3V).
Efficiency vs. Input Voltage
FIGURE 2-11:
(V = 3.3V).
Efficiency vs. Output Load
OUT
OUT
0.6
1.82
TA = +125 o
C
TA = +90 o
C
VOUT = 1.8V
1.81
1.80
1.79
1.78
1.77
1.76
1.75
1.74
0.5
0.4
0.3
0.2
0.1
IOUT = 300 mA
TA = +25 o
C
TA = - 40 o
C
IOUT = 100 mA
100 150 200 250 300 350 400 450 500
-40 -25 -10
5
20 35 50 65 80 95 110 125
Ambient Temperature (oC)
Output Current (mA)
FIGURE 2-9:
Temperature (V
Line Regulation vs. Ambient
= 1.8V).
FIGURE 2-12:
Current (V
Output Voltage vs. Load
= 1.8V).
OUT
OUT
DS22042A-page 8
© 2007 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
