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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS54429E

現行

具 Eco-Mode 的 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

TPS54429E

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, Light Load Efficiency, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Operating temperature range (°C) -20 to 85 Iq (typ) (µA) 850 Duty cycle (max) (%) 98 Type Converter
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, Light Load Efficiency, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Operating temperature range (°C) -20 to 85 Iq (typ) (µA) 850 Duty cycle (max) (%) 98 Type Converter
HTSSOP (PWP) 14 32 mm² 5 x 6.4 VQFN (RSA) 16 16 mm² 4 x 4
  • 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
  • Auto-Skip Eco-mode for High Efficiency at Light Load
  • 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)

All trademarks are the property of their respective owners.
  • 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
  • Auto-Skip Eco-mode for High Efficiency at Light Load
  • 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)

All trademarks are the property of their respective owners.

The TPS54429E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54429E 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 TPS54429E uses the D-CAP2™ mode control which provides a very 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 TPS54429E to maintain high efficiency during lighter load conditions. The TPS54429E also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, 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 0.76V and 5.5V. The device also features an adjustable soft start time and a power good function. The TPS54429E is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –20°C to 85°C.

The TPS54429E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54429E 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 TPS54429E uses the D-CAP2™ mode control which provides a very 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 TPS54429E to maintain high efficiency during lighter load conditions. The TPS54429E also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, 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 0.76V and 5.5V. The device also features an adjustable soft start time and a power good function. The TPS54429E is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –20°C to 85°C.
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類型 標題 日期
* Data sheet 7V to 18V Input, 4.5-A Synchronous Step-Down SWIFTTM Converter with Eco-Mode™ datasheet 2011年 1月 19日
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 2013年 1月 2日

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開發板

TPS54429EEVM-608 — 用於具有自動跳過 ECO 模式的 TPS54429E 同步降壓轉換器的評估模組

The TPS54429EEVM-608 is a fully assembled and tested circuit for evaluating the TPS54429E Synchronous Step-Down SWIFT Converter with Auto-Skip ECO-Mode. The TPS54429EEVM-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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開發套件

EVMK2GX — 66AK2Gx 1GHz 評估模組

EVMK2GX（亦稱為「K2G」）1GHz 評估模組 (EVM) 可讓開發人員立即開始評估 66AK2Gx 處理器系列，並加快音訊、工業馬達控制、智慧電網保護和其他高可靠性，即時運算密集應用的開發速度。66AK2Gx 與現有的 KeyStone 式 SoC 裝置類似，可讓 DSP 與 Arm® 核心控制系統中的所有記憶體和週邊設備。此架構有助於實現最大軟體彈性以及以 DSP 或 Arm 為中心的系統設計。

此 EVM 受 Linux 和 TI-RTOS 作業系統的處理器 SDK 支援，並具備 USB、PCIe 與 Gigabit 乙太網路等關鍵週邊設備。它包括電路板管理控制器、SD (...)

使用指南: PDF
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開發套件

EVMK2GXS — 66AK2Gx (K2G) 1 GHz 高安全性評估模組

K2G 1GHz 高安全性評估模組 (EVM) 能讓開發人員開始評估和測試 66AK2Gx 處理器高安全性開發版本的程式，並加快音訊與工業即時應用安全開機產品下一階段的開發速度。  此 EVM 受 Linux 和 TI-RTOS 作業系統的處理器 SDK 支援，並支援 EVMK2GX 的相同特點與功能。

附註：  請注意，此 EVM 需要核准才能購買及取得軟體存取權。使用「立即訂購」表格中的「要求」按鈕提交要求。

使用指南: PDF
要求
模擬型號

TPS54429E TINA-TI Transient Reference Design

SLVM380.TSC (655 KB) - TINA-TI Reference Design
下載
模擬型號

TPS54429E TINA-TI Transient Spice Model

SLVM379.ZIP (41 KB) - TINA-TI Spice Model
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模擬型號

TPS54429E Unencrypted PSpice Transient Model Package (Rev. A)

SLVM127A.ZIP (42 KB) - PSpice Model
下載
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 14 Ultra Librarian
VQFN (RSA) 16 Ultra Librarian
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