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| 型号： | RT9205ACS |
| 厂商： | Richtek Technology Corporation |
| 英文描述： | Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
| 中文描述： | 双稳压器-同步降压PWM型DC - DC和线性控制器 |
| 文件页数： | 6/16页 |
| 文件大小： | 316K |
| 代理商： | RT9205ACS |
RT9205/A
Preliminary
www.richtek.com
DS9205/A-03 May 2003
14
MOSFETs and the load. Also locate the PWM
controller near by MOSFETs.
A multi-layer printed circuit board is recommended.
Fig.13 shows the connections of the critical
components in the converter. Note that the capacitors
CIN and COUT represent 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 islands 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.
Fig. 13
+
LOAD
RT9205/A
VCC
GND
FB
LGATE
UGATE
VOUT
IQ1
IL
Q1
Q2
IQ2
5V
GND
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RT9205-ACS | 制造商:RICHTEK 制造商全称:Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
| RT9205AGS | 制造商:RICHTEK 制造商全称:Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
| RT9205APS | 制造商:RICHTEK 制造商全称:Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
| RT9205GS | 制造商:RICHTEK 制造商全称:Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
| RT9205PS | 制造商:RICHTEK 制造商全称:Richtek Technology Corporation 功能描述:Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller |
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