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AC/DC & DC/DC converters (integrated FET)

TPS54239

現行

具 D-CAP2 模式的 4.5V 至 23V 輸入、2A 同步降壓轉換器

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功能相似於所比較的產品
TPS62932 現行 採用 SOT-583 封裝的 3.8-V 至 30-V 輸入、2-A、200-kHz 至 2.2-MHz、低 IQ 同步降壓轉換器 Wider range of Vin and Fsw, with smaller size.

TPS54239

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 23 Topology Buck Type Converter Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0006
Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 23 Topology Buck Type Converter Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0006
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • D-CAP2 Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 23 V
  • Output Voltage Range: 0.76 V to 7.0 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 140 mΩ (High Side) and 70 mύ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 600-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • D-CAP2 Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 23 V
  • Output Voltage Range: 0.76 V to 7.0 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 140 mΩ (High Side) and 70 mύ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 600-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit

The TPS54239 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54239 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 TPS54239 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The TPS54239 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 23-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 TPS54239 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.

The TPS54239 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54239 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 TPS54239 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The TPS54239 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 23-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 TPS54239 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.
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TPS54239E 現行 具 Eco-mode 的 4.5V 至 23V 輸入，2-A 同步降壓轉換器 This product has Eco-mode™ operation.
TPS54339 現行 採用 D-CAP2 模式的 4.5-V 至 23-V 輸入、3-A 同步降壓轉換器 Higher current equivalent part.

技術文件

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類型 標題 日期
* Data sheet 4.5 V to 23 V Input, 2-A Synchronous Step-Down SWIFTTM Converter datasheet 2013年 1月 7日
User guide TPS54239 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 10月 26日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS54239EVM-056 — TPS54239 同步降壓 DC/DC 轉換器評估模組

The Texas Instruments TPS54239EVM-056 evaluation module helps designers evaluate the performance of the TPS54239 4.5V to 23V input, 2-A synchronous step-down DC/DC converter.
使用指南: PDF | HTML
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模擬型號

TPS54239 TINA-TI Transient Reference Design

SLVM848.TSC (188 KB) - TINA-TI Reference Design
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模擬型號

TPS54239 TINA-TI Transient Spice Model

SLVM849.ZIP (49 KB) - TINA-TI Spice Model
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模擬型號

TPS54239 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM844A.ZIP (280 KB) - PSpice Model
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參考設計

PMP10822 — 十輸出 QR 返馳及降壓轉換器參考設計

The PMP10822 reference design utilizes two QR flyback, and four buck converters. The efficiency for the 12V and 24V flyback approaches 87%, while the 16V buck converter has efficiency greater than 89%.
Test report: PDF
電路圖: PDF
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