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参数资料
| 型号： | MC34710EWR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 12/18页 |
| 文件大小： | 0K |
| 描述： | IC PWR SUPPLY ADJ DUAL SW 32SOIC |
| 产品变化通告： | AMPD Product Discontinuation 12/Dec/2012 |
| 标准包装： | 1,000 |
| 应用： | 通用，监控器，序列 |
| 电流 - 电源： | 7.5mA |
| 电源电压： | 13 V ~ 32 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-SSOP（0.295"，7.50mm 宽）裸露焊盘 |
| 供应商设备封装： | 32-SOICW 裸露焊盘 |
| 包装： | 带卷 (TR) |
TYPICAL APPLICATIONS
short and wide helps prevent the converter's high di/dt
switching transients from causing EMI/RFI.
Figure 5. Typical PCB Layout
Figure 5 shows a typical layout for the pcb traces
connecting the IC's switching pin (VSWITCH) and the power
inductor, rectifier, and filter components.
Also, it is recommended to design the component layout
so that the switching currents can be immediately sunk into a
broad full-plane ground that provides terminations physically
right at the corresponding component leads. This helps
prevent switching noise from propagating into other sections
of the circuitry.
possible. The square vias in the plane are located to provide
an immediate path to ground from the top copper circuitry.
Figure 7. Top Copper Layout
Figure 7 shows the corresponding top copper circuit area
with the component placement.
Again, the ground plane and the vias have been
highlighted so the reader may note the proximity of these
current sink pathways to the key converter components. It is
also important to keep the power planes of the switching
converter's output spread as broad as possible beneath the
passive components, as this helps reduce EMI/RFI and the
potential for coupling noise transients into adjacent circuitry.
Figure 6. Bottom Copper Layout
Figure 6 illustrates a pcb typical bottom copper layout for
the area underneath a buck converter populated on the top of
the same section of pcb.
The ground plane is highlighted so the reader may note
how the ground plane has been kept as broad and wide as
Figure 8. Output Plane of Buck Converter
Figure 8 shows the output plane of the buck converter
highlighted.
34710
Analog Integrated Circuit Device Data
12
Freescale Semiconductor
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC34711 | 制造商:SPC Multicomp 功能描述:HEADER R/ANGLE 14WAY 制造商:SPC Multicomp 功能描述:HEADER, R/ANGLE, 14WAY 制造商:SPC Multicomp 功能描述:WIRE-BOARD CONN, RECEPTACLE, 14POS, 3MM; Series:2261(5561); Pitch Spacing:3mm; Contact Termination:Through Hole Right Angle; No. of Contacts:14; No. of Rows:2; Connector Mounting:PCB; Gender:Receptacle; Contact Material:Copper Alloy ;RoHS Compliant: Yes |
| MC34712EP | 功能描述:开关变换器、稳压器与控制器 SINGLE REGULATOR FOR DDR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MC34712EPR2 | 功能描述:开关变换器、稳压器与控制器 SNGL REGULTR FOR DDR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MC34713 | 制造商:SPC Multicomp 功能描述:HEADER R/ANGLE 20WAY 制造商:SPC Multicomp 功能描述:HEADER, R/ANGLE, 20WAY |
| MC34713EP | 功能描述:开关变换器、稳压器与控制器 SINGLE SWITCH REG RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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