參數(shù)資料
型號: LV5813TT
元件分類: 穩(wěn)壓器
英文描述: 5.7 A SWITCHING REGULATOR, 444 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 0.150 INCH, MSOP-8
文件頁數(shù): 5/9頁
文件大?。?/td> 368K
代理商: LV5813TT
LV5813TT
Continued from preceding page.
Pin No.
Pin name
Description
Equivalent Circuit
5
FB
Feedback pin
Sets the output voltage by means of split resistor
in the section of the output voltage VOUT - FB -
GND. VOUT setting is made as calculated
below :
VOUT = Vref × {1+
(R1 + R10)
R3
}
Vref = 0.8V
Example : 3.3V output voltage
(See block diagram and sample application
circuit)
VOUT = 0.8 × {1+
(27k + 4.3k)
10k
}
= 3.304V
5
μA
Internal regulation
line
VIN
FB
SS
VREF
0.8V
6
COMP
Phase compensation pin
Connects with the phase compensation external
capacitance and resistance of DC/DC converter
close loop.
Internal regulation line
VIN
COMP
Short
protection
circuit
7
EN
Enable pin
Converter enabled when set to the HIGH voltage
and disabled when connected to GND.
VIN
EN
8
SS
Soft start pin
Set the soft start time by means of the built-in 5
μA
source voltage and external soft start capacity
Css can be set as follows :
C6 = 5
μA ×
Tss
Vref
Where, Tss is soft start time and Vref is the
reference voltage.
Example : 2.4ms soft start time achieved
Css = 5
μA ×
2.4ms
0.8V
= 0.015
μF
No.A1761-5/9
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