CAT3200 Datasheet, PDF (4/12 Pages) Catalyst Semiconductor – Low Noise Regulated Charge Pump DC-DC Converter

CAT3200, CAT3200−5
TYPICAL PERFORMANCE CHARACTERISTICS (CAT3200−5)
(T_AMB = 25°C, C_IN = C_OUT = C_FLY = 1 mF, V_IN = 3.3 V unless specified otherwise.)
1.2
2.2
1.1
2.0
1.0
0.9
1.8
0.8
0.7
1.6
0.6
0.5
0.4
2.7 3.0
3.3
3.6
3.9
4.2
4.5
INPUT VOLTAGE (V)
Figure 3. Shutdown Input Threshold vs.
Supply Voltage
1.4
1.2
2.7 3.0
3.3
3.6
3.9
4.2 4.5
INPUT VOLTAGE (V)
Figure 4. Ground Current vs. Supply Voltage
(No Load)
5.2
5.2
5.1
5.1
20 mA Load
5.0
5.0
100 mA Load
4.9
4.9
4.8
4.8
2.7 3.0
3.3
3.6
3.9
4.2
4.5
0
INPUT VOLTAGE (V)
Figure 5. Line Regulation
VIN = 3.2 V
VIN = 3.0 V
VIN = 2.7 V
50
100
150
LOAD CURRENT (mA)
Figure 6. Load Regulation
2.6
2.4
2.2
2.0
1.8
1.6
2.7 3.0
3.3
3.6
3.9
4.2
4.5
INPUT VOLTAGE (V)
Figure 7. Oscillator Frequency vs. Supply
Voltage
100
90
80
70
60
50
40
30
1
VIN = 2.7 V
VIN = 3.2 V
VIN = 3.7 V
VIN = 4.5 V
10
100
LOAD CURRENT (mA)
Figure 8. Efficiency vs. Load Current
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