SMB20x设计的DC-DC电源转换方案
时间:10-25
来源:互联网
点击:
本文介绍SMB20X主要特性,以及SMB207,SMB208和SMB209的详细应用电路图和相应的材料清单(BOM)。Summit 公司的SMB20x/20xA是高度集成和灵活的单/双输出 DC-DC电源稳压器,包括有单/双路DC/DC降压稳压器和提供高达1A/2A/4A连续输出电流的高边MOSFET开关。可编程输出低至0.8V。输入电压从+4.5V 到 +16V,输出电压+0.8V 到+5.0V,电压精度+/-2.5% 。PWM频率500kHz或1MHz,主要用在数字LCD/等离子TV,数字STB/PVR/DVR以及数据通信/电信设备。
SMB20X应用:
? Digital LCD/Plasma TV
? Digital Set-Top Box/PVR/DVR
? Datacom/Telecom Equipment
![](../img/eep-analog/analog-14211ukkb5kfjsdq.jpg)
图1。SMB20X简化应用框图
![](../img/eep-analog/analog-14212zcegubxfgku.jpg)
图2。SMB207A/208A典型应用电路图
![](../img/eep-analog/analog-14213x2m2uu2zn4q.jpg)
图3。SMB209典型应用电路图
![](../img/eep-analog/analog-14214zcbkbhlhaty.jpg)
图4。SMB207详细电路图
SMB207 BOM:
![](../img/eep-analog/analog-14215t5ndzow55ht.jpg)
![](../img/eep-analog/analog-14216t5awyhue0y4.jpg)
图5。SMB208详细电路图
SMB208 BOM:
![](../img/eep-analog/analog-14217vckavyplzka.jpg)
![](../img/eep-analog/analog-14218alrxntmub43.jpg)
图6。SMB209详细电路图
SMB209 BOM:
SMB20X应用:
? Digital LCD/Plasma TV
? Digital Set-Top Box/PVR/DVR
? Datacom/Telecom Equipment
![](../img/eep-analog/analog-14211ukkb5kfjsdq.jpg)
图1。SMB20X简化应用框图
![](../img/eep-analog/analog-14212zcegubxfgku.jpg)
图2。SMB207A/208A典型应用电路图
![](../img/eep-analog/analog-14213x2m2uu2zn4q.jpg)
图3。SMB209典型应用电路图
![](../img/eep-analog/analog-14214zcbkbhlhaty.jpg)
图4。SMB207详细电路图
SMB207 BOM:
![](../img/eep-analog/analog-14215t5ndzow55ht.jpg)
![](../img/eep-analog/analog-14216t5awyhue0y4.jpg)
图5。SMB208详细电路图
SMB208 BOM:
![](../img/eep-analog/analog-14217vckavyplzka.jpg)
![](../img/eep-analog/analog-14218alrxntmub43.jpg)
图6。SMB209详细电路图
SMB209 BOM:
![](../img/eep-analog/analog-14219hyl0nnlepnk.jpg)
- 新型灌封式6A至12A DC-DC μModule稳压器系列(11-19)
- DC-DC开关变换器中混沌现象的研究综述(11-27)
- 数码相机电源电路设计及DC/DC变换器选择(01-22)
- 产生双极性输出的无变压器 DC/DC 变换器(01-23)
- 改进型全桥移相ZVS-PWMDC/DC变换器(01-23)
- 为DC/DC转换器选择正确的电感器与电容器(01-02)