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LM2665 Datasheet(PDF) 9 Page - Texas Instruments

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Part # LM2665
Description  LM2665 Switched Capacitor Voltage Converter
PDF  16 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM2665 Datasheet(HTML) 9 Page - Texas Instruments

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LM2665
www.ti.com
SNVS009F – NOVEMBER 1999 – REVISED MAY 2013
Figure 15. Increasing Output Voltage by Cascading Devices
REGULATING VOUT
It is possible to regulate the output of the LM2665 by use of a low dropout regulator (such as LP2980-5.0). The
whole converter is depicted in Figure 16.
A different output voltage is possible by use of LP2980-3.3, LP2980-3.0, or LP2980-adj.
Note that, the following conditions must be satisfied simultaneously for worst case design:
2Vin_min >Vout_min +Vdrop_max (LP2980) + Iout_max × Rout_max (LM2665)
(6)
2Vin_max < Vout_max +Vdrop_min (LP2980) + Iout_min × Rout_min (LM2665)
(7)
Figure 16. Generate a Regulated +5V from +3V Input Voltage
Copyright © 1999–2013, Texas Instruments Incorporated
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