参数资料
| 型号： | EL7571CM |
| 厂商： | Intersil |
| 文件页数： | 17/19页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM PROGRAMMABLE 20SOIC |
| 标准包装： | 38 |
| 应用： | 控制器，Intel Pentium? II，Pro |
| 输入电压： | 4.5 V ~ 12.6 V |
| 输出数： | 2 |
| 输出电压： | 1.3 V ~ 3.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SO |
| 包装： | 管件 |
EL7571
PCB Layout Considerations
1. Place the power MOSFET’s as close to the controller as
possible. Failure to do so will cause large amounts of
ringing due to the parasitic inductance of the copper
trace. Additionally, the parasitic capacitance of the trace
will weaken the effective gate drive. High frequency
switching noise may also couple to other control lines.
2. Always place the by-pass capacitors (0.1μF and 1μF) as
close to the EL7571 as possible. Long lead lengths will
lessen the effectiveness.
3. Separate the power ground (input capacitor ground and
ground connections of the Schottky diode and the power
MOSFET’s) and signal grounds (ground pins of the by-
pass capacitors and ground terminals of the EL7571).
This will isolate the highly noisy switching ground from the
very sensitive signal ground.
4. Connect the power and signal grounds at the output
capacitors. Output capacitor ground is the quietest point
in the converter and should be used as the reference
ground.
5. The power MOSFET’s output inductor and Schottky
diode should be grouped together to contain high
switching noise in the smallest area.
6. Current sense traces running from pin 11 and pin 12 to
the current sense resistor should run parallel and close to
each other and be Kelvin connected (no high current
flow). In high current applications performance can be
improved by connecting low Pass filter (typical values
4.7 ?, 0.1μF) between the sense resistor and the IC
inputs.
Layout Example
To demonstrate the points discussed above, below shows
two reference layouts - a synchronous 5V only VRM layout
and a synchronous 5V only PC board layout. Both layouts
can be modified to any application circuit configuration
shown on this data sheet. Gerber files of the layouts are
available from the factory.
Top Layer Silkscreen
Bottom Layer Silkscreen
17
相关PDF资料 |
PDF描述 |
|---|---|
| X5083V8-2.7A | IC SUPERVISOR CPU 8K EE 8-TSSOP |
| ASC20DRTN-S13 | CONN EDGECARD 40POS .100 EXTEND |
| X5083V8-2.7 | IC SUPERVISOR CPU 8K EE 8-TSSOP |
| GSA36DRSD-S664 | CONN EDGECARD 72POS DIP .125 SLD |
| X5083V8 | IC SUPERVISOR CPU 8K EE 8-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EL7571CM-T13 | 功能描述:IC CTRLR PWM PROGRAMMABLE 20SOIC RoHS:否 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) |
| EL7571CMZ | 功能描述:IC CTRLR PWM PROGRAMMABLE 20SOIC 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) |
| EL7571CMZ-T13 | 功能描述:IC CTRLR PWM PROGRAMMABLE 20SOIC 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) |
| EL7581 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:3-Channel DC-DC Converter |
| EL7581_06 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:3-Channel DC/DC Converter |
发布紧急采购，3分钟左右您将得到回复。