参数资料
| 型号： | IRU3033CS |
| 厂商： | International Rectifier |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC CTRL/REG PWM SWITCH 8-SOIC |
| 标准包装： | 95 |
| 应用： | 控制器，Intel Pentium?，II，P55C |
| 输入电压： | 12V |
| 输出数： | 1 |
| 输出电压： | 2 V ~ 3.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 其它名称： | *IRU3033CS IRU3033-CS IRU3033-CS-ND |
IRU3033(PbF)
PIN DESCRIPTIONS
PIN #
1
2
3
4
5
6
7
8
PIN SYMBOL
Drv1
V 12(SW)
V FB1
V HYST
Gnd
V FB2
Drv2
V 12
PIN DESCRIPTION
The PWM output of the switching controller. This pin is a totem pole drive that is con-
nected to the gate of the power MOSFET. A resistor may be placed from this pin to the
gate in order to reduce switching noise.
This pin supplies the voltage to the PWM drive and hysteresis circuitry and it is connected
to the 12V supply. A 1 μ F, high frequency capacitor must be connected from this pin to
ground to provide the peak current for charging and discharging of the MOSFET.
A resistor divider from this pin to the output of the switching regulator and ground sets the
Core supply voltage.
A resistor and a 10pF capacitor is connected from this pin to the V FB1 pin to set the output
ripple voltage for the switching regulator.
This pin is connected to the IC substrate and must be connected to the lowest potential in
the system.
The feedback pin of the linear regulator. A resistor divider from this pin to the output of the
linear regulator and ground sets the I/O supply voltage.
The drive pin of the linear regulator. This pin controls the base of a transistor or the gate
of a MOSFET acting as the series pass element for the linear regulator.
This pin provides the biasing for the chip and drive for the linear regulator controller. It is
connected to 12V supply. A 10 ? resistor in series from this pin to the 12V supply and a
1 μ F, high frequency capacitor connected from this pin to ground is required to filter the
switching noise of the switching regulator.
BLOCK DIAGRAM
V 12(SW)
V HYST
V FB1
V 12
2
4
3
8
Drv2
7
Drv 1
1
Gnd
UVLO
PWM Control
1.25V
V REF
5V Reg
5
V FB2
6
Figure 2 - Simplified block diagram of the IRU3033.
www.irf.com
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRU3033CSPBF | 功能描述:IC CONTROLLER PWM SWITCH 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| IRU3033CSTR | 功能描述:IC CTRL/REG PWM SWITCH 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:2,000 系列:- 应用:控制器，DSP 输入电压:4.5 V ~ 25 V 输出数:2 输出电压:最低可调至 1.2V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:30-TFSOP（0.173"，4.40mm 宽） 供应商设备封装:30-TSSOP 包装:带卷 (TR) |
| IRU3034 | 制造商:IRF 制造商全称:International Rectifier 功能描述:8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING |
| IRU3034CS | 功能描述:IC CTRL/REG PWM SWITCH 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:2,000 系列:- 应用:控制器，DSP 输入电压:4.5 V ~ 25 V 输出数:2 输出电压:最低可调至 1.2V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:30-TFSOP（0.173"，4.40mm 宽） 供应商设备封装:30-TSSOP 包装:带卷 (TR) |
| IRU3034CSPBF | 制造商:International Rectifier 功能描述:PWM CONTROLLER SMD 3034 SOIC8 |
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