Datenblatt-Suchmaschine für elektronische Bauteile |
|
LM2665M6X Datenblatt(PDF) 7 Page - National Semiconductor (TI) |
|
|
LM2665M6X Datenblatt(HTML) 7 Page - National Semiconductor (TI) |
7 / 8 page Other Applications (Continued) Cascading Devices Cascading the LM2665s is an easy way to produce a greater voltage (A two-stage cascade circuit is shown in Figure 4). The effective output resistance is equal to the weighted sum of each individual device: R out = 1.5Rout_1 +Rout_2 Note that, the increasing of the number of cascading stages is pracitically limited since it significantly reduces the effi- ciency, increases the output resistance and output voltage ripple. Regulating V OUT 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 5. 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 simulta- neously for worst case design: 2V in_min >V out_min +Vdrop_max (LP2980) + Iout_max xRout_max (LM2665) 2V in_max < Vout_max +Vdrop_min (LP2980) + Iout_min xRout_min (LM2665) DS100049-19 FIGURE 3. Lowering Output Resistance by Paralleling Devices DS100049-20 FIGURE 4. Increasing Output Voltage by Cascading Devices DS100049-21 FIGURE 5. Generate a Regulated +5V from +3V Input Voltage www.national.com 7 |
Ähnliche Teilenummer - LM2665M6X |
|
Ähnliche Beschreibung - LM2665M6X |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |