MCP1603 Просмотр технического описания (PDF) - Microchip Technology
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MCP1603 Datasheet PDF : 34 Pages
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MCP1603/B/L
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.
100
95
IOUT = 100 mA
90
VOUT = 1.8V
85
IOUT = 300 mA
80
IOUT = 500 mA
75
70
2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5
Input Voltage (V)
FIGURE 2-7:
(VOUT = 1.8V).
Efficiency vs. Input Voltage
100
90
80
VIN = 2.7V
VIN = 3.6V
70
60
50
40
VIN = 4.2V
30
VOUT = 1.8V
20
PFM/PWM
10
PWM Only
0
0.1
1
10
100
1000
Output Current (mA)
FIGURE 2-8:
Efficiency vs. Output Load
(VOUT = 1.8V).
0.6
VOUT = 1.8V
0.5
IOUT = 300 mA
0.4
0.3
IOUT = 100 mA
0.2
0.1
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (oC)
FIGURE 2-10:
Line Regulation vs. Ambient
Temperature (VOUT = 1.8V).
1.82
1.81
TA = +125oC
TA = +90oC
1.80
1.79
1.78
1.77
TA = -40oC
TA = +25oC
1.76
1.75
1.74
100 150 200 250 300 350 400 450 500
Output Current (mA)
FIGURE 2-11:
Output Voltage vs. Load
Current (VOUT = 1.8V).
100
95 IOUT = 100 mA
VOUT = 2.4V
90
IOUT = 300 mA
85
IOUT = 500 mA
80
75
3
3.5
FIGURE 2-9:
(VOUT = 2.4V).
4
4.5
5
5.5
Input Voltage (V)
Efficiency vs. Input Voltage
100
90
80 VIN = 3.6V
70
60
50
40
30
20
10
0
0.1
VIN = 2.7V
VIN = 4.2V
VOUT = 2.4V
PFM/PWM
PWM Only
1
10
100
Output Current (mA)
1000
FIGURE 2-12:
PFM/PWM Efficiency vs.
Output Load (VOUT = 2.4V).
DS22042B-page 8
2007-2012 Microchip Technology Inc.
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