Datasheet

© 2010 Microchip Technology Inc. DS22075B-page 9
MCP1790/MCP1791
Note: Unless otherwise indicated, C
OUT
= 4.7 uF Ceramic (X7R), C
IN
= 10.0 µF Ceramic (X7R), I
OUT
= 1 mA, Temperature = +25°C,
V
IN
= 6.0V, R
PWRGD_PULLUP
= 10 kΩ To V
OUT
, V
SHDN
= V
IN,
and device is MCP1790.
FIGURE 2-7: Line Regulation vs.
Temperature.
FIGURE 2-8: Line Regulation vs.
Temperature.
FIGURE 2-9: Load Regulation vs.
Temperature.
FIGURE 2-10: Output Voltage vs. Load
Current.
FIGURE 2-11: Dropout Voltage vs. Load
Current.
FIGURE 2-12: Dropout Voltage vs.
Temperature.
-0.006
-0.004
-0.002
0.000
0.002
0.004
0.006
-45 -20 5 30 55 80 105 130
Temperature (°C)
Line Regulation (%/V)
V
OUT
= 3.3V
V
IN
= 6V to 30V
70 mA
10 mA
0 mA
-0.006
-0.004
-0.002
0.000
0.002
0.004
0.006
-45 -20 5 30 55 80 105 130
Temperature (°C)
Line Regulation (%/V)
V
OUT
= 5.0V
V
IN
= 6V to 30V
70 mA
0 mA
30 mA
-0.30
-0.25
-0.20
-0.15
-0.10
-0.05
0.00
-45 -20 5 30 55 80 105 130
Temperature (°C)
Load Regulation (%)
I
LOAD
= 1 mA to 70 mA
V
REG
=5.0V
V
REG
=3.3V
V
REG
=3.0V
4.94
4.95
4.96
4.97
4.98
4.99
5.00
5.01
5.02
5.03
5.04
0 10203040506070
Load Current (mA)
Output Voltage (V)
V
OUT
= 5.0V
V
IN
= 6.3V
+25°C +130°C-45°C 0°C +90°C
+25°C +130°C
-45°C
0°C +90°C
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0 10203040506070
Load Current (mA)
Dropout Voltage (V)
V
OUT
= 5.0V
+25°C
+130°C
-45°C
0°C
+90°C
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
-45 -20 5 30 55 80 105 130
Temperature (°C)
Dropout Voltage (V)
V
OUT
= 5.0V
1 mA
50 mA
10 mA
30 mA
70 mA