Datasheet

MCP1824/MCP1824S
DS22070A-page 14 2007 Microchip Technology Inc.
Note: Unless otherwise indicated, C
OUT
= 4.7 µF Ceramic (X7R), C
IN
= 4.7 µF Ceramic (X7R), I
OUT
= 1 mA,
Temperature = +25°C, V
IN
= V
OUT
+ 0.5V, Fixed output, SHDN = 10 kΩ pullup to V
IN
.
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 (Adj.).
FIGURE 2-24: Power Supply Ripple
Rejection (PSRR) vs. Frequency.
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0 50 100 150 200 250 300
Load Current (mA)
Dropout Voltage (V)
V
OUT
= 5.0V
V
OUT
= 2.5V
0.12
0.14
0.16
0.18
0.20
0.22
0.24
-45 -20 5 30 55 80 105 130
Temperature (°C)
Dropout Voltage (V)
I
OUT
= 300 mA
V
OUT
= 2.5V
V
OUT
= 5.0V
0.00
100.00
200.00
300.00
400.00
500.00
600.00
0123456
Input Voltage (V)
Short Circuit Current (mA)
V
OUT
= 0.8V
0.010
0.100
1.000
10.000
0.01 0.1 1 10 100 1000
Frequency (kHz)
Noise (mV/
√
Hz)
V
R
=0.8V, V
IN
=2.1V
V
R
=3.0V, V
IN
=3.8V C
OUT
=10 F cer
C
IN
=4.7 F cer
I
OUT
=200 mA
-80.0
-70.0
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
0.01 0.1 1 10 100 1000
Frequency (kHz)
PSRR (dB)
V
R
=1.2V Adj
V
IN
=2.5V
V
INAC
= 200 mV p-p
C
IN
=0 F
I
OUT
=10 mA
-90.0
-80.0
-70.0
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
0.01 0.1 1 10 100 1000
Frequency (kHz)
PSRR (dB)
V
R
=3.0V (Fixed)
V
IN
=3.5V
V
INAC
=200 mV p-p
C
IN
=0 F
I
OUT
=10 mA