- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:直流/直流开关稳压器 - 降压稳压器
- 功能描述:输入电压为 4.5V 至 18V 的 3A 同步降压转换器
- 点击这里打开及下载TPS54325的技术文档资料
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The TPS54325 device is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54325 device enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution.
The main control loop for the TPS54325 uses the D-CAP2™ mode control which provides a very fast transient response with no external components. The TPS54325 also has a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VCC input , and from 2.0-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54325 is available in the 14 pin HTSSOP package, and designed to operate from –40°C to 85°C.
- D-CAP2? Mode Enables Fast Transient Response
- Low Output Ripple and Allows Ceramic Output Capacitor
- Wide VCC Input Voltage Range: 4.5 V to 18 V
- Wide VIN Input Voltage Range: 2.0 V to 18 V
- Output Voltage Range: 0.76 V to 5.5 V
- Highly Efficient Integrated FET’s Optimized for Lower Duty Cycle Applications – 120 mΩ (High Side) and 70 mΩ (Low Side)
- High Efficiency, less than 10 μA at shutdown
- High Initial Bandgap Reference Accuracy
- Adjustable Soft Start
- Pre-Biased Soft Start
- 700-kHz Switching Frequency (fSW)
- Cycle By Cycle Over Current Limit
- Power Good Output
- Vin (Min) (V)
- 4.5
- Vin (Max) (V)
- 18
- Vout (Min) (V)
- 0.76
- Vout (Max) (V)
- 5.5
- Iout (Max) (A)
- 3
- Iq (Typ) (uA)
- 850
- Switching frequency (Min) (kHz)
- 700
- Switching frequency (Max) (kHz)
- 700
- Features
- Enable, Power Good, Synchronous Rectification, Soft Start Adjustable
- Rating
- Catalog
- Regulated outputs (#)
- 1
- Control mode
- D-CAP2
- Duty cycle (Max) (%)
- 90
TPS54325的完整型号有:TPS54325PWP、TPS54325PWPR,以下是这些产品的关键参数及官网采购报价:
TPS54325PWP,工作温度:-40 to 85,封装:HTSSOP (PWP)-14,包装数量MPQ:90个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网TPS54325PWP的批量USD价格:.812(1000+)
TPS54325PWPR,工作温度:-40 to 85,封装:HTSSOP (PWP)-14,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网TPS54325PWPR的批量USD价格:.677(1000+)
TPS54325EVM — 5V 至 17V 输入、3A 转换器评估模块
TPS54325EVM(评估模块)是一款组装完备且经过测试的电路,用于评估 TPS54428 同步降压转换器。此 EVM 在 4.5V 至 18V 输入电压范围内运行,且可在最高 3A 的负载下提供 1.05V 的输出电压。TPS54325 的主控制环路采用 D-CAP2™ 模式控制,无需在相位补偿中使用外部组件即可实现极快的瞬态响应。该解决方案还具有可调软启动特性且集成了电源正常指示功能,因此灵活性很高。
TPS54325 Unencrypted PSpice Transient Model Package (Rev. A)
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在?PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
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PMP8251 — 用于 Xilinx FPGA Zynq 7 的电源解决方案
该参考设计具有多个 TPS54325 和其他功率器件,适用于 Xilinx Zynq FPGA。该参考设计可通过 12V 输入提供 Zynq FPGA(包括 DDR3 存储器)所需的电源轨。