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LP78083 Fiches technique(PDF) 2 Page - Lowpower Semiconductor inc

No de pièce LP78083
Description  650mA High Efficiency Synchronous Buck with Dual Channel LDO
PDF  8 Pages
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Fabricant  POWER [Lowpower Semiconductor inc]
Site Internet  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP78083 Fiches technique(HTML) 2 Page - Lowpower Semiconductor inc

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Preliminary Datasheet
LP78083
LP78083 – Ver. 1.0 Datasheet
Feb.-2008
Page 2 of 8
Typical Application Circuit
LP78083
3
1
8
4
5
7
6
OUT2
SW
FB
Vin
OUT3
VDD
EN
OUT2
2.2uH
OUT1
VIN
OUT3
Figure 1. LP78083 High Efficiency Step-Down Converter
Functional Pin Description
Pin Number
Pin Name
Pin Function
1
SW
Ground.
2
GND
Pin For Switching
3
OUT2
Output2,LDO output
4
VIN
Power Input.
5
OUT3
Output3,LDO output
6
EN
DC/DC Chip Enable(Active High).
7
VDD
Power Input.
10
FB
Feedback Input Pin, Reference voltage is 0.6 V
Function Block Diagram



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