MCP1640 Ver la hoja de datos (PDF) - Microchip Technology
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MCP1640
0.65V Start-up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option
Microchip Technology
MCP1640 Datasheet PDF : 32 Pages
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MCP1640/B/C/D
Note: Unless otherwise indicated, VIN = EN = 1.2V, COUT = CIN = 10 µF, L = 4.7 µH, VOUT = 3.3V, ILOAD = 15 mA, TA = +25°C.
3.33
3.325
IOUT = 15 mA
VIN = 1.2V
3.32
3.315
VIN = 1.8V
3.31
3.305
3.3
3.295
VIN = 0.8V
3.29
3.285
-40 -25 -10 5
20 35 50 65 80
Ambient Temperature (°C)
FIGURE 2-7:
Temperature.
3.3V VOUT vs. Ambient
1.00
0.85
0.70
VOUT = 3.3V
Startup
0.55
Shutdown
0.40
0.25
0
20
40
60
80
100
IOUT (mA)
FIGURE 2-10:
Minimum Start-up and
Shutdown VIN into Resistive Load vs. IOUT.
3.38
3.36
3.34
VIN = 1.5V
IOUT = 5 mA
3.32
3.30
IOUT = 15 mA
3.28
3.26
-40
IOUT = 50 mA
-25 -10
5
20
35
50
65
80
Ambient Temperature (°C)
FIGURE 2-8:
Temperature.
3.3V VOUT vs. Ambient
525
VOUT = 3.3V
520
515
510
505
500
495
490
485
480
-40 -25 -10
5
20
35
50
65
80
Ambient Temperature (°C)
FIGURE 2-11:
Temperature.
FOSC vs. Ambient
3.40
TA = 85°C
3.36
IOUT = 5 mA
3.32 TA = 25°C
3.28
TA = - 40°C
3.24
3.20
0.8
1.2
1.6
2
VIN (V)
2.4
2.8
FIGURE 2-9:
3.3V VOUT vs. VIN.
4.5
4
VOUT = 5.0V
3.5
3
VOUT = 3.3V
2.5
2
VOUT = 2.0V
1.5
1
0.5
0
0
1
2
3
4
5
6
7
8
9 10
IOUT (mA)
FIGURE 2-12:
PWM Pulse Skipping Mode
Threshold vs. IOUT.
DS22234A-page 6
2010 Microchip Technology Inc.
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