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SP6660EP Datasheet(PDF) 5 Page - Sipex Corporation |
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SP6660EP Datasheet(HTML) 5 Page - Sipex Corporation |
5 / 22 page SP6660DS/11 SP6660 200mA Charge Pump Inverter or Doubler © Copyright 2000 Sipex Corporation 5 DESCRIPTION The SP6660 Charge Pump DC-DC Voltage Converter either inverts or doubles the input voltage. As a negative voltage inverter, as shown in Figure 1, a +1.5V to +4.25V input can be converted to a -1.5V to -4.25V output. Figure 2, as a positive voltage doubler, a +2.5V to +4.25V input can be converted to a +5.0V to +8.5V output. Figure 1. SP6660 Test Circuit for the Voltage Inverter OSC OUT SP6660 +VIN C1 5 1 2 7 4 CAP+ CAP- GND 6 8 3 LV TEST CIRCUIT: VOLTAGE INVERTER FC V+ RL C2 IL IS VOUT Typical performance curves in Figures 3 to 20 are generated using the test circuits found in Figure 1 and Figure 2. Four operating modes are shown in the curves: Voltage inverter in low and high frequency modes and voltage doubler in low and high frequency modes. Figure 2. Test Circuit for the Positive Voltage Doubler OSC OUT SP6660 +VIN C1 5 1 2 7 4 C2 CAP+ CAP- GND 6 8 3 LV TEST CIRCUIT: VOLTAGE DOUBLER +V IS FC RL VOUT |
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