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MCP1826 数据表(PDF) 13 Page - Microchip Technology

部件名 MCP1826
功能描述  1000 mA, Low Voltage, Low Quiescent Current LDO Regulator
PDF  36 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MCP1826 数据表(HTML) 13 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS22057A-page 13
MCP1826/MCP1826S
Note: Unless otherwise indicated, COUT = 4.7 µF Ceramic (X7R), CIN = 4.7 µF Ceramic (X7R), IOUT = 1 mA,
Temperature = +25°C, VIN = VOUT + 0.6V, Fixed output.
FIGURE 2-19:
Dropout Voltage vs. Load
Current.
FIGURE 2-20:
Dropout Voltage vs.
Temperature.
FIGURE 2-21:
Short Circuit Current vs.
Input Voltage.
FIGURE 2-22:
Output Noise Voltage
Density vs. Frequency.
FIGURE 2-23:
Power Supply Ripple
Rejection (PSRR) vs. Frequency (Adjustable).
FIGURE 2-24:
Power Supply Ripple
Rejection (PSRR) vs. Frequency.
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0
200
400
600
800
1000
Load Current (mA)
VOUT = 5.0V
VOUT = 2.5V
0.20
0.22
0.24
0.26
0.28
0.30
0.32
0.34
-45
-20
5
30
55
80
105
130
Temperature (°C)
IOUT = 1000 mA
VOUT = 2.5V
VOUT = 5.0V
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
2.00
0
1
2
3456
Input Voltage (V)
VOUT = 0.8V
0.010
0.100
1.000
10.000
0.01
0.1
1
10
100
1000
Frequency (kHz)
VR=0.8V, VIN=2.3V
VR=3.3V, VIN=4.1V
COUT=1 μF ceramic X7R
CIN=10 μF ceramic
IOUT=200 mA
-80
-70
-60
-50
-40
-30
-20
-10
0
0.01
0.1
1
10
100
1000
Frequency (kHz)
VR=1.2V Adj
COUT=10 μF ceramic X7R
VIN=3.1V
CIN=0 μF
IOUT=10 mA
-80
-70
-60
-50
-40
-30
-20
-10
0
0.01
0.1
1
10
100
1000
Frequency (kHz)
VR=3.3V Fixed
COUT=22 μF ceramic X7R
VIN=3.9V
CIN=0 μF
IOUT=10 mA



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