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LA5759 データシート(PDF) 3 Page - Sanyo Semicon Device

部品番号 LA5759
部品情報  Monolithic Linear IC Separately-excited Step-down Switching Regulator (Variable Type)
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メーカー  SANYO [Sanyo Semicon Device]
ホームページ  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA5759 データシート(HTML) 3 Page - Sanyo Semicon Device

  LA5759 Datasheet HTML 1Page - Sanyo Semicon Device LA5759 Datasheet HTML 2Page - Sanyo Semicon Device LA5759 Datasheet HTML 3Page - Sanyo Semicon Device LA5759 Datasheet HTML 4Page - Sanyo Semicon Device  
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LA5759
Block Diagram
2SWOUT
DRIVE
OCP
RESET
OSC
Comp.
Reg.
Amp.
TSD
4VOS
VREF
0.4V
ON/OFF Comp.
1
VIN
5
SS
3
GND
Constnt
Current
Circuit
Application Circuit Example
VIN
SWOUT
VOS
GND
SS
L1
C1
C2
D1
LA5759
C3
R2
R1
Notes: C3 is for the soft start function. Delete C3 and keep the SS pin open when the soft function is not necessary.
Description of Functional Settings
1. Calculation equation to set the output voltage
This IC controls the switching output so that the VOS pin voltage becomes 1.26V (typ).
The equation to set the output voltage is as follows:
VO = 1+
× 1.26V(typ)
R2
R1
The VOS pin has the inrush current of 1μA (typ). Therefore, the error becomes larger when R1 and R2 resistance
values are large.
No.A1683-3/4


同様の部品番号 - LA5759

メーカー部品番号データシート部品情報
logo
ON Semiconductor		 LA5759 ONSEMI-LA5759 Datasheet
90Kb / 4P		    Separately-excited Step-down Switching Regulator
August, 2013
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同様の説明 - LA5759

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