TC1240 Datasheet, PDF (7/9 Pages) Microchip Technology – Positive Doubling Charge Pump with Shutdown in SOT Package

Positive Doubling Charge Pump with
Shutdown in SOT Package
TYPICAL CHARACTERISTICS
TC1240
Supply Current vs. Supply Voltage
(No Load)
700
600
500
400
300
200
100
0
2.00
3.00
4.00
5.00
6.00
Supply Voltage (V)
Output Source Resistance vs. Supply Voltage
(with Rload = 1K)
20
15
10
5
0
2.00
3.00
4.00
5.00
6.00
Supply Voltage (V)
Supply Current vs. Temperature
(No Load)
450
400
350
V_IN = 4.0V
300
250
200
V_IN = 2.8V
150
100
50
0
-50 -25
0 25 50 75 100 125
Temperature (°C)
Output Source Resistance vs. Temperature
(with Rload = 1K)
25
20
V_IN = 2.8V
15
V_IN = 4.0V
10
5
0
-50 -25
0 25 50 75 100 125
Temperature (°C)
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
Output Voltage Drop Vs Load Current
V_IN = 2.8V
V_IN = 4.0V
5 10 15 20 25 30 35 40 45 50
Load Current (mA)
TC1240-1 7/7/00
7
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0
Power Efficiency Vs Load Current
VIN = 2.5V
VIN = 4.0V
VIN = 3.5V
\
5 10 15 20 25 30 35 40 45 50
Load Current (mA)