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参数资料
| 型号： | IR3831MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 4/31页 |
| 文件大小： | 0K |
| 描述： | IC REG SYNC SUPIRBUCK 8A 5X6QFN |
| 标准包装： | 4,000 |
| 系列： | SupIRBuck™ |
| 应用： | 转换器，DDR |
| 输入电压： | 1.5 V ~ 16 V |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 14.4 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 15-PowerVQFN |
| 供应商设备封装： | PQFN（5x6） |
| 包装： | 带卷 (TR) |
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IR3831MPbF
Pin Description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Name
Vp
Fb
Comp
Gnd
Rt
ˉˉ
SS/SD
OCSet
PGood
V CC
PGnd
SW
V IN
Boot
Enable
Gnd
Description
Track pin. Use External resistors from VDDQ rail. The Vp voltage can
be set to 0.9V for DDR2 application and 0.75 or 0.6V for DDR3
application.
Inverting input to the error amplifier. This pin is connected directly to the
output of the regulator via resistor divider to set the output voltage and
provide feedback to the error amplifier.
Output of error amplifier. An external resistor and capacitor network is
typically connected from this pin to Fb pin to provide loop
compensation.
Signal ground for internal reference and control circuitry.
Set the switching frequency. Connect an external resistor from this pin
to Gnd to set the switching frequency.
Soft start / shutdown. This pin provides user programmable soft-start
function. Connect an external capacitor from this pin to Gnd to set the
start up time of the output voltage. The converter can be shutdown by
pulling this pin below 0.3V.
Current limit set point. A resistor from this pin to SW pin will set the
current limit threshold.
Power Good status pin. Output is open drain. Connect a pull up resistor
from this pin to Vcc. If unused, it can be left open.
This pin powers the internal IC and drivers. A minimum of 1uF high
frequency capacitor must be connected from this pin to the power
ground (PGnd).
Power Ground. This pin serves as a separated ground for the MOSFET
drivers and should be connected to the system’s power ground plane.
Switch node. This pin is connected to the output inductor.
Input voltage connection pin.
Supply voltage for high side driver. Connect a 0.1uF capacitor from this
pin to SW.
Enable pin to turn on and off the device.
Signal ground for internal reference and control circuitry.
11/05/10
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3831WMPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:HIGHLY EFFICIENT INTEGRATED SYNCHRONOUS BUCK REGULATOR FOR DDR APPLICATIONS |
| IR3831WMPBF_1 | 制造商:IRF 制造商全称:International Rectifier 功能描述:HIGHLY EFFICIENT INTEGRATED SYNCHRONOUS BUCK REGULATOR FOR DDR APPLICATIONS |
| IR3831WMPBF_11 | 制造商:IRF 制造商全称:International Rectifier 功能描述:HIGHLY EFFICIENT INTEGRATED SYNCHRONOUS BUCK REGULATOR FOR DDR APPLICATIONS |
| IR3831WMTR1PBF | 功能描述:直流/直流开关调节器 8A SupIRBuck Reg 250-1500kHz, 1.5-16V 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 |
| IR3831WMTRPBF | 功能描述:直流/直流开关调节器 8A SupIRBuck Reg 250-1500kHz, 1.5-16V 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 |
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