- 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：具有 Eco-Mode 的 4.5V 至 18V 输入，3A 同步降压转换器
- 点击这里打开及下载TPS54328的技术文档资料
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The TPS54328 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54328 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54328 uses the D-CAP2 mode control that provides a fast transient response with no external compensation components.
The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode operation at light loads. Eco-mode allows the TPS54328 to maintain high efficiency during lighter load conditions. The TPS54328 also has a proprietary circuit that enables the device to adopt 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 input (VIN).
The output voltage can be programmed from 0.76 V to 7 V. The device also features an adjustable soft start time. The TPS54328 is available in 8-pin DDA and 10-pin DRC packages, and is designed to operate over the ambient temperature range of –40°C to 85°C.
- D-CAP2? Mode Enables Fast Transient Response
- Low Output Ripple and Allows Ceramic Output Capacitor
- Wide Input Voltage Range: 4.5 V to 18 V
- Output Voltage Range: 0.76 V to 7 V
- Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications
- 100 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 Overcurrent Limit
- Auto-Skip Eco-Mode? for High Efficiency at Light Load
- Vin (Min) (V)
- 4.5
- Vin (Max) (V)
- 18
- Vout (Min) (V)
- 0.76
- Vout (Max) (V)
- 7
- Iout (Max) (A)
- 3
- Iq (Typ) (uA)
- 800
- Switching frequency (Min) (kHz)
- 700
- Switching frequency (Max) (kHz)
- 700
- Features
- Enable, Light Load Efficiency, Synchronous Rectification, Soft Start Adjustable
- Rating
- Catalog
- Regulated outputs (#)
- 1
- Control mode
- D-CAP2
- Duty cycle (Max) (%)
- 65
TPS54328的完整型号有：TPS54328DDA、TPS54328DDAR、TPS54328DRCR、TPS54328DRCT，以下是这些产品的关键参数及官网采购报价：
TPS54328DDA，工作温度：-40 to 85，封装：SO PowerPAD (DDA)-8，包装数量MPQ：75个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网TPS54328DDA的批量USD价格：.522（1000+）
TPS54328DDAR，工作温度：-40 to 85，封装：SO PowerPAD (DDA)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：SN，TI官网TPS54328DDAR的批量USD价格：.438（1000+）
TPS54328DRCR，工作温度：-40 to 85，封装：VSON (DRC)-10，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS54328DRCR的批量USD价格：.488（1000+）
TPS54328DRCT，工作温度：-40 to 85，封装：VSON (DRC)-10，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS54328DRCT的批量USD价格：.572（1000+）
TPS54328EVM-686 — 用于 TPS54328 3A 同步降压转换器（具有 Eco-Mode）的评估模块
TPS54328EVM-686 是一款组装完备且经过测试的电路，用于评估 TPS54328 同步降压转换器。TPS54328EVM-686 在 4.5V 至 18V 输入电压范围内运行，在高达 3A 的负载下提供 1.05V 的输出电压。TPS54328 的主控制环路采用 D-CAP2™ 控制模式，无需在相位补偿中使用外部组件即可实现超快的瞬态响应。
TPS54328 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 (...)
