- 您现在的位置：买卖IC网 > PDF目录39437 > LV5808MXZ 3 A SWITCHING REGULATOR, 444 kHz SWITCHING FREQ-MAX, PDSO8 PDF资料下载
参数资料
| 型号： | LV5808MXZ |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A SWITCHING REGULATOR, 444 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | 0.200 INCH, MFP-8 |
| 文件页数： | 4/5页 |
| 文件大小： | 130K |
| 代理商： | LV5808MXZ |
LV5808MXZ
Pin Function
Pin No.
Pin name
Function
Equivalent circuit
1
BOOT
Upper MOS transistor boot strap capacitance connection pin.
No.A1614-4/5
Connect the boot capacitance of about 0.022
μF 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
Ω) Rb proves effective.
2
VIN
Input voltage pin.
Connect substantially large (20
μF or more) capacitance
between this pin and GND.
VIN
BOOT
SW
High side MOS
Low side MOS
3
SW
Power switch pin.
Connect the output LC filter. Connect the above capacitance
between this pin and BOOT pin.
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
SS
VREF
0.8V
VIN
FB
10
μA
Internal regulation line
8
SS
Soft start pin.
Sets the soft start time by means of the built-in 10
μA source
voltage and external soft start capacity. The soft start capacity
C6 can be set as follows:
C6 = 10
μA ×
Tss
Vref
Where, Tss is the soft start time and Vref is the reference
voltage.
Example: 1.2ms soft start time achieved
C6 = 10
μA ×
1.2ms
0.8V
= 0.015
μF
6
COMP
Phase compensation pin.
COMP
VIN
Internal regulation line
Clump circuit
Connects with the phase compensation external capacitance
and resistance of DC/DC converter close loop.
7
EN
Enable pin.
EN
VIN
2pF
Q117
Converter enabled when set to the HIGH voltage and disabled
when LOW voltage or OPEN state.
相关PDF资料 |
PDF描述 |
|---|---|
| LV5856MX | 4 A SWITCHING REGULATOR, 340 kHz SWITCHING FREQ-MAX, PDSO8 |
| LV5856MX | 4 A SWITCHING REGULATOR, 340 kHz SWITCHING FREQ-MAX, PDSO8 |
| LV59012M | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| LV71081E | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| LV8018W | 0.5 A SWITCHING CONTROLLER, 130 kHz SWITCHING FREQ-MAX, PQFP48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LV5809MX | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Step-down Switching Regulator |
| 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 |
发布紧急采购，3分钟左右您将得到回复。