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MCP1601 Datasheet(PDF) 6 Page - Microchip Technology

Part No. MCP1601
Description  500 mA Synchronous BUCK Regulator
Download  22 Pages
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Maker  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
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MCP1601 Datasheet(HTML) 6 Page - Microchip Technology

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MCP1601
DS21762A-page 6
 2003 Microchip Technology Inc.
Note: Unless otherwise indicated, VIN = 4.2V, VOUT = 1.8V, L = 10 µH, COUT= 10 µF (X5R Ceramic), CIN = 10 µF (X5R
Ceramic), SYNC/PWM=VIN.
FIGURE 2-7:
Output Voltage vs. Load
Current.
FIGURE 2-8:
Output Voltage vs. Load
Current.
FIGURE 2-9:
Input to Output Voltage
Differential for 100% Duty Cycle vs. Load
Current.
FIGURE 2-10:
Switch Leakage vs.
Temperature.
FIGURE 2-11:
Typical PWM Mode of
Operation Waveforms.
FIGURE 2-12:
Typical PFM Mode of
Operation Waveforms.
1.700
1.720
1.740
1.760
1.780
1.800
1.820
0
100
200
300
400
500
Load Current (mA)
VOUT = 1.8V
Auto PWM/PFM
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
3.10
3.13
3.15
3.18
3.20
3.23
3.25
3.28
3.30
3.33
3.35
0
100
200
300
400
500
Load Current (mA)
VOUT = 3.3V
Auto PWM/PFM
VIN = 4.5V
VIN = 5.0V
VIN = 5.5V
0
50
100
150
200
250
300
350
400
450
0
100
200
300
400
500
Load Current (mA)
VOUT = 3.3V
VOUT = 2.7V
Dropout = (VIN-VOUT) in mV @ 97% of VOUT
0.0
1.5
3.0
4.5
-40
-15
10
35
60
85
Ambient Temperature (°C)
VIN = 5.0V
Synchronous NChannel
BUCK Switch PChannel


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