Datasheet

MCP1827/MCP1827S
DS22001C-page 10 © 2007 Microchip Technology Inc.
Note: Unless otherwise indicated, V
OUT
= 1.8V (Adjustable), V
IN
= 2.8V, 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
+ 0.6V, R
PWRGD
= 10 kΩ To V
IN
.
FIGURE 2-7: Dropout Voltage vs. Load
Current (Adjustable Version).
FIGURE 2-8: Dropout Voltage vs.
Temperature (Adjustable Version).
FIGURE 2-9: Power Good (PWRGD)
Time Delay vs. Temperature (Adjustable
Version).
FIGURE 2-10: Quiescent Current vs. Input
Voltage (0.8V Fixed).
FIGURE 2-11: Quiescent Current vs. Input
Voltage (2.5V Fixed).
FIGURE 2-12: Ground Current vs. Load
Current.
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0 250 500 750 1000 1250 1500
Load Current (mA)
Dropout Voltage (V)
V
OUT
= 2.5V Adj
V
OUT
= 5.0V Adj
0.30
0.32
0.34
0.36
0.38
0.40
0.42
-45 -20 5 30 55 80 105 130
Temperature (°C)
Dropout Voltage (V)
V
OUT
= 3.3V Adj
V
OUT
= 5.0V Adj
V
OUT
= 2.5V Adj
I
OUT
= 1.5A
300
310
320
330
340
350
360
370
-45 -20 5 30 55 80 105 130
Temperature (°C)
Power Good Time Delay (µs)
V
OUT
= 3.3V Fixed
V
IN
= 3.9V
V
IN
= 5.0V
V
IN
= 4.5V
80
90
100
110
120
130
140
150
23456
Input Voltage (V)
Quiescent Current (μA)
-45°C
+130°C
+85°C
+25°C
V
OUT
= 0.8V
I
OUT
= 0 mA
80
90
100
110
120
130
140
150
33.544.555.56
Input Voltage (V)
Quiescent Current (μA)
V
OUT
= 2.5V
I
OUT
= 0 mA
+130
°C
-45
°C
+25
°C
+90
°C
0.00
50.00
100.00
150.00
200.00
250.00
0 250 500 750 1000 1250 1500
Load Current (mA)
Ground Current (μA)
V
IN
= 2.3V for V
R
=0.8V
V
IN
= 3.1V for V
R
=2.5V
V
OUT
=0.8V
V
OUT
=2.5V