MCP1825 MICROCHIP [Microchip Technology], MCP1825 Datasheet - Page 14

• Manufacturer Part Number: MCP1825
• Description: 500 mA, Low Voltage, Low Quiescent Current LDO Regulator
• Manufacturer: MICROCHIP [Microchip Technology]

MCP1825/MCP1825S
Note: Unless otherwise indicated, C
Temperature = +25°C, V
FIGURE 2-19:
Current.
FIGURE 2-20:
Temperature.
FIGURE 2-21:
Input Voltage.
DS22056B-page 14
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0.30
0.28
0.26
0.24
0.22
0.20
0.18
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
-45
0.00
0
V
OUT
= 5.0V
-20
1.00
V
100
OUT
= 2.5V
Load Current (mA)
2.00
5
Input Voltage (V)
Dropout Voltage vs. Load
Dropout Voltage vs.
Short Circuit Current vs.
200
Temperature (°C)
IN
30
3.00
= V
V
OUT
OUT
300
V
OUT
= 5.0V
55
4.00
= 2.5V
+ 0.5V, Fixed output.
OUT
400
V
I
80
OUT
5.00
OUT
= 500 mA
= 2.5V
= 4.7 µF Ceramic (X7R), C
105
6.00
500
130
FIGURE 2-22:
Density vs. Frequency.
FIGURE 2-23:
Rejection (PSRR) vs. Frequency (Adj.).
FIGURE 2-24:
Rejection (PSRR) vs. Frequency.
IN
0.01
-10.0
-20.0
-30.0
-40.0
-50.0
-60.0
-70.0
-80.0
-90.0
-10.0
-20.0
-30.0
-40.0
-50.0
-60.0
-70.0
-80.0
0.1
10
0.0
= 4.7 µF Ceramic (X7R), I
0.0
1
0.01
0.01
0.01
V
V
R
R
=2.5V, V
=0.8V, V
0.1
0.1
0.1
IN
IN
=3.3V
=2.3V
Frequency (kHz)
Frequency (kHz)
Output Noise Voltage
Power Supply Ripple
Power Supply Ripple
Frequency (kHz)
© 2008 Microchip Technology Inc.
1
V
C
V
C
I
1
1
OUT
R
OUT
IN
IN
V
C
V
C
I
=1.2V Adj
OUT
=2.5V
=0 μF
R
IN
OUT
IN
=10 mA
=2.5V (Fixed)
=10 μF ceramic X7R
=3.3V
=0 μF
=10 mA
=22 μF ceramic X7R
10
10
10
OUT
C
C
= 1 mA,
I
OUT
IN
OUT
100
=10 μF cer
100
100
=1 μF cer
=200 mA
1000
1000
1000