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參數(shù)資料
| 型號： | LV5856MX |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4 A SWITCHING REGULATOR, 340 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.220 INCH, MFP-8 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 159K |
| 代理商： | LV5856MX |
LV5856MX
Pin Function
Pin No.
Pin name
Function
Equivalent circuit
Upper MOS transistor boot strap capacitance connection pin.
Connect the boot capacitance of about 0.1uF between SW pins.
To protect the SW pin’s absolute maximum rating , to ensure
stable
No.A1639-4/5
1
BOOT
operation, and to eliminate noise , the boot capacitance serial
resistance (about 15) Rb
proves effective.
2
VIN
Input Voltage Pin. Connect substantially large (10uF 2 parallel or
more) capacitance between this pin and GND.
VIN
BOOT
SW
High side MOS
Low side MOS
Discharge
Power Switch pin.
3
SW
Connect the output LC filter.
Connect the above capacitance between this pin and BOOT pin.
The discharge transistor for a Soft-Stop is connected with this
terminal (typcal 35). It turns it on by either EN=L, UVLO or a
thermal shutdown.
4
GND
Ground pin.
Feedback pin.
5
FB
Set 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 = 0.923V
Example: 3.3V output voltage
(See, Block Diagram and Application example)
VOUT = 0.923 × { 1 +
(22k + 3.9k)
10k
}
=3.314V
SS
VREF
0.923V
VIN
FB
Soft start pin.
8
SS
Sets the soft start time by means of the built-in 6
μA source
voltage and external soft start capacity. The soft start capacity C6
can be set as follows:
C6 = 6
μA ×
Tss
Vref
Where, Tss is the soft start time and Vref is the reference
voltage.
Example:2.3ms soft start time achieved
C6 = 6
μA ×
2.3ms
0.923V = 0.015μF
Phase compensation pin.
6
COMP
VIN
Connects with the phase compensation external capacitance and
resistance of DC/DC converter close loop.
Enable pin.
7
EN
VIN
2pF
Converter enabled when set to the HIGH voltage and disabled
when LOW voltage or OPEN state.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LV5856MX-TLM-H | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 SWITCHING REGULATOR RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| LV5857MX | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Step-down Switching Regulator |
| LV5857MX-TLM-H | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 SWITCHING REGULATOR RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| LV5858M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Step-down Switching Regulator |
| LV58761MX | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Step-down Switching Regulator |
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