TC1240_13 Datasheet, PDF (4/18 Pages) Microchip Technology – Positive Doubling Charge Pumps with Shutdown in a SOT-23 Package

TC1240/TC1240A
2.0 TYPICAL PERFORMANCE CURVES
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.
Note: Unless otherwise indicated, typical values apply at T_A = +25°C.
700
600
500
400
300
200
100
0
2.00
3.00
4.00
5.00
6.00
SUPPLY VOLTAGE (V)
FIGURE 2-1:
Supply Current vs. Supply
Voltage (No Load).
450
400
350
300
250
200
150
100
50
0
-50
V_IN = 4.0V
V_IN = 2.8V
-25
0
25 50 75
TEMPERATURE (°C)
100 125
FIGURE 2-4:
Supply Current vs.
Temperature (No Load).
20
25
20
15
V_IN = 2.8V
15
10
V_IN = 4.0V
10
5
5
0
2.00
3.00
4.00
5.00
6.00
SUPPLY VOLTAGE (V)
FIGURE 2-2:
Output Source Resistance
vs. Supply Voltage (with R_LOAD = 1 k)
1
0.9
0.8
0.7
0.6
0.5
V_IN = 2.8V
0.4
V_IN = 4.0V
0.3
0.2
0.1
0
0 5 10 15 20 25 30 35 40 45 50
LOAD CURRENT (mA)
FIGURE 2-3:
Load Current.
Output Voltage Drop vs.
0
-50 -25
0
25 50 75
TEMPERATURE (°C)
100 125
FIGURE 2-5:
Output Source Resistance
vs. Temperature (with R_LOAD = 1 k
100%
90%
80%
70%
60%
50%
V_IN = 2.5V
V_IN = 3.5V
V_IN = 4.5V
40%
30%
20%
10%
0%
0 5 10 15 20 25 30 35 40 45 50
LOAD CURRENT (mA)
FIGURE 2-6:
Current.
Power Efficiency vs. Load
DS21516D-page 4
 2001-2012 Microchip Technology Inc.