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| 型号： | TPS54060DRCR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 3 X 3 MM, PLASTIC, SON-10 |
| 文件页数： | 33/49页 |
| 文件大小： | 2582K |
| 代理商： | TPS54060DRCR |
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BOOT
VIN
EN
SS/TR
RT/CLK
PH
GND
COMP
VSENSE
PWRGD
Input
Bypass
Capacitor
UVLO
Adjust
Resistors
SlowStart
Capacitor
Frequency
SetResistor
Compensation
Network
Resistor
Divider
Output
Inductor
Output
Capacitor
Vout
Vin
Topside
Ground
Area
Catch
Diode
RouteBootCapacitor
Traceonanotherlayerto
providewidepathfor
topsideground
ThermalVIA
SignalVIA
www.ti.com
SLVS919A – JANUARY 2009 – REVISED JULY 2010
Layout
Layout is a critical portion of good power supply design. There are several signals paths that conduct fast
changing currents or voltages that can interact with stray inductance or parasitic capacitance to generate noise
or degrade the power supplies performance. To help eliminate these problems, the VIN pin should be bypassed
to ground with a low ESR ceramic bypass capacitor with X5R or X7R dielectric. Care should be taken to
minimize the loop area formed by the bypass capacitor connections, the VIN pin, and the anode of the catch
diode. See Figure 63 for a PCB layout example. The GND pin should be tied directly to the power pad under the
IC and the power pad.
The power pad should be connected to any internal PCB ground planes using multiple vias directly under the IC.
The PH pin should be routed to the cathode of the catch diode and to the output inductor. Since the PH
connection is the switching node, the catch diode and output inductor should be located close to the PH pins,
and the area of the PCB conductor minimized to prevent excessive capacitive coupling. For operation at full rated
load, the top side ground area must provide adequate heat dissipating area. The RT/CLK pin is sensitive to noise
so the RT resistor should be located as close as possible to the IC and routed with minimal lengths of trace. The
additional external components can be placed approximately as shown. It may be possible to obtain acceptable
performance with alternate PCB layouts, however this layout has been shown to produce good results and is
meant as a guideline.
Figure 63. PCB Layout Example
Estimated Circuit Area
The estimated printed circuit board area for the components used in the design of Figure 50 is 0.55 in2. This area
does not include test points or connectors.
Copyright 2009–2010, Texas Instruments Incorporated
39
Product Folder Link(s): TPS54060
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相关代理商/技术参数 |
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| TPS54060DRCT | 功能描述:直流/直流开关转换器 3.5-60V Inp0.5A2.5 MHz Step Down SWIFT RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS54060EVM-457 | 功能描述:电源管理IC开发工具 TPS54060EVM-457 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS54060EVM-590 | 功能描述:电源管理IC开发工具 DC/DC converter Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS54060MDGQTEP | 功能描述:Buck, Split Rail Switching Regulator IC Positive Adjustable 0.8V 1 Output 500mA 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 制造商:texas instruments 系列:Eco-Mode? 包装:剪切带（CT） 零件状态:有效 功能:降压 输出配置:正 拓扑:降压，分离轨 输出类型:可调式 输出数:1 电压 - 输入（最小值）:3.5V 电压 - 输入（最大值）:60V 电压 - 输出（最小值/固定）:0.8V 电压 - 输出（最大值）:58V 电流 - 输出:500mA 频率 - 开关:100kHz ~ 2.5MHz 同步整流器:无 工作温度:-55°C ~ 125°C（TA） 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商器件封装:10-MSOP-PowerPad 标准包装:1 |
| TPS54060-Q1 | 制造商:TI 制造商全称:Texas Instruments 功能描述:0.5-A 60-V STEP-DOWN SWIFTa?￠ DC/DC CONVERTER WITH Eco-modea?￠ |
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