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参数资料
| 型号： | TPS54972PWP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封装： | GREEN, PLASTIC, HTSSOP-28 |
| 文件页数： | 2/19页 |
| 文件大小： | 411K |
| 代理商： | TPS54972PWP |
AGND
BOOT
VSENSE
COMP
PWRGD
PH
RT
ENA
REFIN
VBIAS
VIN
PGND
VOUT
PH
VIN
TOPSIDE GROUND AREA
VIA to Ground Plane
ANALOG GROUND TRACE
EXPOSED
POWERPAD
AREA
COMPENSATION
NETWORK
OUTPUT INDUCTOR
OUTPUT
FILTER
CAPACITOR
BOOT
CAPACITOR
INPUT
BYPASS
CAPACITOR
INPUT
BULK
FILTER
RESISTOR DIVIDER
NETWORK
BIAS CAPACITOR
TRACKING VOLTAGE
TPS54972
SLVS437B – AUGUST 2002 – REVISED AUGUST 2010
www.ti.com
Connect the boot capacitor between the phase node and the BOOT pin as shown. Keep the boot capacitor close
to the IC and minimize the conductor trace lengths.
Connect the output filter capacitor(s) as shown between the VOUT trace and PGND. It is important to keep the
loop formed by the PH pins, Lout, Cout and PGND as small as is practical.
Place the compensation components from the VOUT trace to the VSENSE and COMP pins. Do not place these
components too close to the PH trace. Do to the size of the IC package and the device pin-out, they will have to
be routed somewhat close, but maintain as much separation as possible while still keeping the layout compact.
Connect the bias capacitor from the VBIAS pin to analog ground using the isolated analog ground trace. If an RT
resistor is used, connect them to this trace as well.
Figure 9. TPS54972 PCB Layout
10
Copyright 2002–2010, Texas Instruments Incorporated
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| TPS54972PWPG4 | 功能描述:直流/直流开关调节器 9-A Act Bus Term/DDR DC/DC Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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| TPS54972PWPRG4 | 功能描述:直流/直流开关调节器 9-A Act Bus Term/DDR DC/DC Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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| TPS54973EVM-017 | 功能描述:电源管理IC开发工具 9-A DC/DC Conv 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 |
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