2004-2013 Microchip Technology Inc. DS21876B-page 7
MCP1650/51/52/53
2.0 TYPICAL PERFORMANCE CURVES
Note: Unless otherwise indicated, V
IN
= 3.3V, V
OUT
= 12V, C
IN
= 10 µF (x5R or X7R Ceramic), C
OUT
= 10 µF (X5R or X7R),
I
OUT
=10mA, L=3.3µH, SHDN > V
IH
, T
A
= +25°C.
FIGURE 2-1: Input Quiescent Current vs.
Input Voltage.
FIGURE 2-2: Input Quiescent Current vs.
Ambient Temperature.
FIGURE 2-3: Oscillator Frequency vs.
Input Voltage.
FIGURE 2-4: Oscillator Frequency vs.
Ambient Temperature.
FIGURE 2-5: Duty Cycle Switch-Over
Voltage vs. Ambient Temperature.
FIGURE 2-6: Duty Cycle Switch-Over
Hysteresis Voltage vs. Ambient Temperature.
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.
50
75
100
125
150
175
200
22.533.544.555.56
Input Voltage (V)
Input Quiescent Current (µA)
T
J
= - 40°C
T
J
= +25°C
T
J
= +125°C
I
LOAD
= 0 mA
50
75
100
125
150
175
200
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (°C)
Input Quiescent Current (µA)
V
IN
= 2.0V
I
LOAD
= 0 mA
V
IN
= 5.5V
V
IN
= 4.1V
V
IN
= 2.7V
700
720
740
760
780
800
2.7 3 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4 5.7 6
Input Voltage (V)
Oscillator Frequency (kHz)
T
J
= - 40°C
T
J
= +25°C
T
J
= +125°C
720
740
760
780
800
820
840
-40 -25 -10 5 20 35 50 65 80 95 110 125 140
Ambient Temperature (°C)
Oscillator Frequency (kHz)
V
IN
= 2.0V
V
IN
= 5.5V
V
IN
= 4.1V
V
IN
= 2.7V
3.75
3.76
3.77
3.78
3.79
3.80
3.81
3.82
3.83
3.84
3.85
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (°C)
Duty Cycle Switch Over
= Rising
90.0
90.5
91.0
91.5
92.0
92.5
93.0
93.5
94.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (°C)
Duty Cycle Switch Voltage
