參數(shù)資料
型號(hào)： RT9204GS
廠(chǎng)商： Richtek Technology Corporation
英文描述： Dual Regulators - Standard Buck PWM DC-DC and Linear Controller
中文描述： 雙穩(wěn)壓器-標(biāo)準(zhǔn)降壓PWM型DC - DC和線(xiàn)性控制器
文件頁(yè)數(shù)： 13/14頁(yè)
文件大?。?/td> 199K
代理商： RT9204GS
RT9204/A
Preliminary
13
DS9204/A-08 March 2007
www.richtek.com
The power components and the PWM controller should
be placed firstly. Place the input capacitors, especially the
high-frequency ceramic decoupling capacitors, close to
the power switches. Place the output inductor and output
capacitors between the MOSFETs and the load. Also
locate the PWM controller near by MOSFETs.
A multi-layer printed circuit board is recommended. Figure
13. shows the connections of the critical components in
the converter. Note that the capacitors CIN and COUT
each of them represents numerous physical capacitors.
Use a dedicated grounding plane and use vias to ground
all critical components to this layer. Apply another solid
layer as a power plane and cut this plane into smaller
islands of common voltage levels. The power plane should
support the input power and output power nodes. Use
copper filled polygons on the top and bottom circuit layers
for the PHASE node, but it is not necessary to oversize
this particular island. Since the PHASE node is subjected
to very high dV/dt voltages, the stray capacitance formed
between these island and the surrounding circuitry will
tend to couple switching noise. Use the remaining printed
circuit layers for small signal routing. The PCB traces
between the PWM controller and the gate of MOSFET
and also the traces connecting source of MOSFETs
should be sized to carry 2A peak currents.
Figure 13
+
+
LOAD
+
VCC
RT9204/A
GND
FB
UGATE
IL
IQ1
V
OUT
Q1
IQ2
5V
GND
相關(guān)PDF資料
PDF描述
RT9204PS Dual Regulators - Standard Buck PWM DC-DC and Linear Controller
RT9205AGS Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
RT9205APS Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
RT9205GS Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
RT9205PS Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RT9204PS 制造商:RICHTEK 制造商全稱(chēng):Richtek Technology Corporation 功能描述:Dual Regulators - Standard Buck PWM DC-DC and Linear Controller
RT9205 制造商:RICHTEK 制造商全稱(chēng):Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
RT9205/ACS 制造商:RICHTEK 制造商全稱(chēng):Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
RT9205_07 制造商:RICHTEK 制造商全稱(chēng):Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
RT9205ACS 制造商:RICHTEK 制造商全稱(chēng):Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
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