SP6661UEB View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'SP6661UEB' PDF : 7 Pages View PDF
Optimizing Capacitor Selection
Refer to Figure 1 for the total output resistance for various capacitance values and oscillator frequencies.
The reservoir and charge pump capacitor values are equal. The capacitance values required to maintain
comparable ripple and output resistance typically diminish proportionately as the pump frequency of
the SP6661 increases.
20
18
16
14
12
10
8
6
4
2
0
1
10KHz
20KHz
50KHz
100KHz
200KHz
500KHz
1000KHz
10
100
C1, C2 Capacitance (uF)
1000
Figure 1. Total Output Resistance for various capacitance values and oscillator frequencies.
Date: 05/25/04
SP6661 High Frequency 200mA Charge Pump Inverter or Doubler
4
© Copyright 2004 Sipex Corporation
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