MCP1603 Просмотр технического описания (PDF) - Microchip Technology
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MCP1603 Datasheet PDF : 34 Pages
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MCP1603/B/L
2.0 TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note: Unless otherwise indicated, MCP1603/L, 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.
50
49
48
VIN = 3.6V
VOUT = 1.8V
47 VIN = 4.2V
46
45
44
43
42 VIN = 3.0V
41
40
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (oC)
FIGURE 2-1:
PFM IQ vs. Ambient
Temperature (MCP1603/L).
52
TA = +90oC
50
48
46 TA = +25oC
44
42
TA = -40oC
40
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
Input Voltage (V)
FIGURE 2-4:
(MCP1603/L).
PFM IQ vs. Input Voltage
3.3
3.2 VOUT = 1.8V
3.1
VIN = 3.0V
3
2.9
VIN = 4.2V
2.8
2.7
VIN = 3.6V
2.6
2.5
2.4
-40 -25 -10 5 20 35 50 65 80
Ambient Temperature (oC)
FIGURE 2-2:
PWM IQ vs. Ambient
Temperature (MCP1603B).
3.4 VOUT = 1.8V
3.2
3
TA = +90oC
TA = +25oC
2.8
2.6
2.4
TA = -40oC
2.2
2
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
Input Voltage (V)
FIGURE 2-5:
(MCP1603B).
PWM IQ vs. Input Voltage
100
95
VOUT = 1.2V
90 IOUT = 100 mA
85
80
IOUT = 300 mA
75
70
IOUT = 500 mA
65
60
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
Input Voltage (V)
FIGURE 2-3:
(VOUT = 1.2V).
Efficiency vs. Input Voltage
100
90
VIN = 3.6V
80
VIN = 2.7V
70
60
50
40
30
VOUT = 1.2V
20
VIN = 4.2V
PFM/PWM
PWM Only
10
0
0.1
1
10
100
1000
Output Current (mA)
FIGURE 2-6:
Efficiency vs. Output Load
(VOUT = 1.2V).
2007-2012 Microchip Technology Inc.
DS22042B-page 7
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