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参数资料
| 型号： | LV5809MX |
| 元件分类： | 稳压器 |
| 英文描述： | 5.9 A SWITCHING REGULATOR, 395 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 0.200 INCH, MFP-8 |
| 文件页数： | 4/5页 |
| 文件大小： | 114K |
| 代理商： | LV5809MX |
LV5809MX
No.A1475-4/5
Pin Function
Pin No.
Pin name
Function
Equivalent circuit
1
BOOT
Upper MOS transistor boot strap capacitance connection pin.
Connect the boot capacitance of about 0.022
F between SW
pins.
To protect the SW pin’s absolute maximum rating, to ensure
stable operation, and to eliminate noise, the boot capacitance
serial resistance (about 100
) Rb proves effective.
2
VIN
Input voltage pin.
Connect substantially large (10
F 2 parallel or more)
capacitance between this pin and GND.
3
SW
Power switch pin.
Connect the output LC filter. Connect the above capacitance
between this pin and BOOT pin.
VIN
BOOT
SW
Short protection
circuit
Output MOS
4
GND
Ground pin.
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 = Vref × { 1 +
(27k + 4.3k)
10k
}
=3.304V
8
SS
Soft start pin.
Sets the soft start time by means of the built-in 10
A source
voltage and external soft start capacity. The soft start capacity
C6 can be set as follows:
C6 = 10
A ×
Tss
Vref
Where, Tss is the soft start time and Vref is the reference
voltage.
Example: 1.2ms soft start time achieved
C6 = 10
A ×
1.2ms
0.8V = 0.015F
SS
VREF
0.8V
VIN
FB
10
A
Internal regulation line
6
COMP
Phase compensation pin.
Connects with the phase compensation external capacitance
and resistance of DC/DC converter close loop.
COMP
VIN
Internal regulation line
Short protection
circuit
7
EN
Enable pin.
Converter enabled when set to the HIGH voltage and disabled
when LOW voltage or OPEN state.
EN
VIN
1k
183k
183k
5
A
2pF
Q117
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LV5809MX-TLM-H | 功能描述:直流/直流开关调节器 SWITCHING REGULATOR RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| LV5810M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Step-down Switching Regulator |
| LV5810M-TE-L-H | 功能描述:直流/直流开关调节器 SWITCHING REGULATOR RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| LV58132MX | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Step-down Switching Regulator |
| LV58132MX-MPB-H | 制造商:ON Semiconductor 功能描述:DC-DC CONVERTER (BUCK) |
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