TCM829ECT713 Datasheet, PDF (6/26 Pages) Microchip Technology – Switched Capacitor Voltage Converters

TCM828/TCM829
Note:Circuit of Figure 5-3, V_IN = +5V, C1 = C2 = C3, T_A = +25°C, unless otherwise noted.
450
400
V_IN = 4.75V, V_OUT = – 4.0V
350
300
250
V_IN = 3.15V, V_OUT = – 2.5V
200
V_IN = 1.9V, V_OUT = – 1.5V
150
100
50
0
0
5 10 25 20 25 30 35
CAPACITANCE (µF)
FIGURE 2-5:
TCM828 – Output Voltage
Ripple vs. Capacitance.
14
V_IN = 5.0V
12
10
V_IN = 3.3V
8
V_IN = 1.5V
6
4
2
0
5
–40
0°C
25°C
TEMPERATURE (°C)
85°C
FIGURE 2-8:
TCM828 – Pump Frequency
vs. Temperature.
300
250
V_IN = 4.75V, V_OUT = – 4.0V
200
V_IN = 3.15V, V_OUT = – 2.5V
150
100
V_IN = 1.9V, V_OUT = – 1.5V
50
0
05
10 15 20 30 35
CAPACITANCE (µF)
FIGURE 2-6:
TCM829 – Output Voltage
Ripple vs. Capacitance.
120
100
80
TCM829
60
45
40
V_IN = 5.0V
35
V_IN = 3.3V
30
25
V_IN = 1.5V
20
15
10
5
0
–40°C
0°C
25°C
TEMPERATURE (°C)
85°C
FIGURE 2-9:
vs. Temperature.
0
TCM829 – Pump Frequency
p
–1
V_IN = 2.0V
–2
–3
V_IN = 3.3V
40
TCM828
20
–4
V_IN = 5.0V
–5
0
1.5 2 2.5 3 3.5 4 4.5 5 5.5
SUPPLY VOLTAGE (V)
FIGURE 2-7:
Voltage.
Supply Current vs. Supply
–6
0
10
20
30
40 50
OUTPUT CURRENT (mA)
FIGURE 2-10:
Current.
Output Voltage vs. Output
DS21488B-page 6
© 2010 Microchip Technology Inc.