Datasheet

MCP1612
DS21921C-page 6  2004-2013 Microchip Technology Inc.
2.0 TYPICAL PERFORMANCE CURVES
Note: Unless otherwise indicated, V
IN
= V
CC
= V
SHDN
= 3.3V, C
OUT
= C
IN
= 10 µF, L = 3.3 µH, I
LOAD
= 100 mA,
T
A
=+25°C. Boldface specifications apply over the T
A
range of -40°C to +85°C.
FIGURE 2-1: Efficiency vs. Load Current,
V
IN
= 3.3V.
FIGURE 2-2: Efficiency vs. Load Current,
V
IN
= 5.0V.
FIGURE 2-3: Output Voltage vs.
Load Current.
FIGURE 2-4: Dropout Voltage vs.
Load Current.
FIGURE 2-5: Input Quiescent Current vs.
Input Voltage.
FIGURE 2-6: Oscillator Frequency vs.
Input Voltage.
Note: The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
0
10
20
30
40
50
60
70
80
90
100
10 100 1000
Load Current (mA)
Efficiency (%)
V
IN
= 3.3V
V
OUT
= 1.2V
V
OUT
= 2.5V
V
OUT
= 1.8V
0
10
20
30
40
50
60
70
80
90
100
10 100 1000
Load Current (mA)
Efficiency (%)
V
IN
= 5.0V
V
OUT
= 3.3V
V
OUT
= 2.5V
-1.4
-1.2
-1
-0.8
-0.6
-0.4
-0.2
0
0 200 400 600 800 1000
Load Current (mA)
Change In Output Voltage (mV)
V
OUT
= 3.3V, V
IN
= 5.0V
V
OUT
= 1.8V, V
IN
= 3.3V
V
OUT
= 1.2V V
IN
= 3.3V
0.00
0.10
0.20
0.30
0.40
0.50
0 200 400 600 800 1000
Load Current (mA)
Dropout Voltage (V)
V
OUT
= 2.7V
V
OUT
= 3.3V
3.5
4.0
4.5
5.0
5.5
6.0
6.5
2.533.544.555.5
Input Voltage (V)
Input Quiescent Current (mA)
V
OUT
= 1.8V
T
A
= -40
o
C
T
A
= +25
o
C
T
A
= +85
o
C
1.36
1.37
1.38
1.39
1.40
1.41
1.42
2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
Oscillator Frequency (MHz)
T
A
= -40
o
C
T
A
= +25
o
C
T
A
= +85
o
C