tc1240a Microchip Technology Inc., tc1240a Datasheet - Page 4

• Manufacturer Part Number: tc1240a
• Description: Positive Doubling Charge Pumps With Shutdown In A Sot-23 Package
• Manufacturer: Microchip Technology Inc.

TC1240/TC1240A
2.0
Note: Unless otherwise indicated, typical values apply at T
FIGURE 2-1:
Voltage (No Load).
FIGURE 2-2:
vs. Supply Voltage (with R
FIGURE 2-3:
Load Current.
DS21516C-page 4
Note:
700
600
500
400
300
200
100
20
15
10
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
5
0
1
0
2.00
2.00
0
TYPICAL PERFORMANCE CURVES
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.
5
10
3.00
3.00
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
15
LOAD CURRENT (mA)
Supply Current vs. Supply
Output Source Resistance
Output Voltage Drop vs.
V
20
IN
= 2.8V
4.00
4.00
25
LOAD
30
= 1 kΩ)
35
V
5.00
5.00
IN
= 4.0V
40
45
6.00
6.00
50
A
= +25°C.
FIGURE 2-4:
Temperature (No Load).
FIGURE 2-5:
vs. Temperature (with R
FIGURE 2-6:
Current.
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
15
450
400
350
300
250
200
150
100
25
20
10
0%
50
5
0
0
-50
-50
0
5
-25
-25
10
V
V
IN
IN
0
= 2.8V
0
= 4.0V
15
TEMPERATURE (°C)
LOAD CURRENT (mA)
TEMPERATURE (°C)
V
Supply Current vs.
Output Source Resistance
Power Efficiency vs. Load
IN
V
 2003 Microchip Technology Inc.
V
IN
IN
20
25
= 2.5V
25
LOAD
= 4.0V
= 2.8V
25
50
50
= 1 kΩ).
30
75
V
75
35
IN
= 3.5V
40
100
100
V
IN
= 4.5V
45
125
125
50