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TPS54429

現行

7V 至 18V 輸入、4.5A 同步降壓式 DCAP2 模式轉換器

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產品規格表

TPS54429

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 4.5 Vin (max) (V) 18 Vin (min) (V) 7 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Features Enable, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Operating temperature range (°C) -20 to 85 Iq (typ) (A) 0.00085 Duty cycle (max) (%) 98
Rating Catalog Topology Buck Iout (max) (A) 4.5 Vin (max) (V) 18 Vin (min) (V) 7 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Features Enable, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Operating temperature range (°C) -20 to 85 Iq (typ) (A) 0.00085 Duty cycle (max) (%) 98
HTSSOP (PWP) 14 32 mm² (5 mm × 6.4 mm)
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 7 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
    – 63 mΩ (High Side) and 55 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
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc™ Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)

SWIFT, D-CAP2, PowerPAD are trademarks of Texas Instruments.
Blu-ray Disc is a trademark of Blu-ray Disc Association.
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 7 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
    – 63 mΩ (High Side) and 55 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
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc™ Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)

SWIFT, D-CAP2, PowerPAD are trademarks of Texas Instruments.
Blu-ray Disc is a trademark of Blu-ray Disc Association.

The TPS54429 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54429 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 TPS54429 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The TPS54429 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 7-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54429 is available in the 14-pin HTSSOP package, and designed to operate from –20°C to 85°C.

The TPS54429 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54429 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 TPS54429 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The TPS54429 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 7-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54429 is available in the 14-pin HTSSOP package, and designed to operate from –20°C to 85°C.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 7V to 18V Input, 4.5-A Synchronous Step-Down SWIFTTM Converter datasheet 2011/1/19
應用說明 D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 2013/1/2

設計與開發

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開發板

TPS54429EVM-608 — 適用於具有 D-CAP2 模式之 TPS54429 同步降壓轉換器的評估模組

The TPS54429EVM-608 is a fully assembled and tested circuit for evaluating the TPS54429 Synchronous Step-Down SWIFT Converter with D-CAP2 Mode. The TPS54429EVM-608 operates from a 7V to 18V input and provides a 1.05V output at 4.5A.
使用指南: PDF | HTML
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模擬型號

TPS54429 TINA-TI Transient Reference Design

SLVM375.TSC (655 KB) - TINA-TI 參考設計
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模擬型號

TPS54429 TINA-TI Transient Spice Model

SLVM376.ZIP (41 KB) - TINA-TI Spice 模型
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模擬型號

TPS54429 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM126A.ZIP (42 KB) - PSpice 模型
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參考設計

TIDEP0067 — 66AK2Gx DSP + ARM 處理器電源解決方案參考設計

此參考設計是以 66AK2Gx 多核心系統單晶片 (SoC) 處理器和配套 TPS65911 電源管理積體電路 (PMIC) 為基礎，其在單一裝置中包含 66AK2Gx 處理器的電源供應器和電源排序。此電源解決方案設計也包括支援 12V 輸入的第一級降壓轉換器，以及適用於 DDR3L 記憶體的 DDR 終端穩壓器。參考設計經過測試，並包含硬體參考 (EVM)、軟體（處理器 SDK）和測試資料。
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HTSSOP (PWP) 14 Ultra Librarian
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