The TPS54329 is an adaptive on-time D-CAP2 mode synchronous buck converter. TheTPS54329 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 TPS54329 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54329 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 VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54329 is available in the 8-pin DDA 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 VIN Input Voltage Range: 4.5 V to 18 V
• Output Voltage Range: 0.76 V to 7.0 V
• Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications – 100 mΩ (High Side) and 74 mΩ (Low Side)
• High Efficiency, Less Than 10 μA at Shutdown
• High Initial Bandgap Reference Accuracy
• Adjustable Soft Start
• Pre-Biased Soft Start
• 650-kHz Switching Frequency (fSW)
• Cycle By Cycle Over Current Limit

• 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)
• 650
• Switching frequency (Max) (kHz)
• 650
• Features
• Enable, Synchronous Rectification, Soft Start Adjustable
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• D-CAP2
• Duty cycle (Max) (%)
• 85

TPS54329的完整型号有：TPS54329DDA、TPS54329DDAR，以下是这些产品的关键参数及官网采购报价：

TPS54329DDA，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：NIPDAU，TI官网TPS54329DDA的批量USD价格：0.662（1000+）

TPS54329DDAR，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：NIPDAU，TI官网TPS54329DDAR的批量USD价格：0.552（1000+）

TPS54329EVM-056 — 用于 TPS54329 同步降压转换器（具有 D-CAP2 模式）的评估模块

The TPS54329EVM-056 Evaluation Module (EVM) is a fully assembled and tested circuit for evaluating the TPS54329 Synchronous Step-Down SWIFT Converter with D-CAP2 Mode. The EVM operates from a 4.5V to 18V input and provides a 1.05V output at 3A.

TPS54329 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。

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