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

TPS54339E

現行

具有 D-CAP2 模式和輕負載效率的 4.5-V 至 23-V 輸入、3-A 同步降壓轉換器

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功能相似於所比較的產品
TPS62933 現行 採用 SOT-583 封裝的 3.8-V 至 30-V、3-A、200-kHz 至 2.2-MHz、低 IQ 同步降壓轉換器 This product offers wider Vin, smaller size and lower IQ.

TPS54339E

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 3 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, Light Load Efficiency, 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) 3 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, Light Load Efficiency, 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 mΩ (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
  • Auto-Skip Eco-mode for High Efficiency at Light Load
  • 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 mΩ (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
  • Auto-Skip Eco-mode for High Efficiency at Light Load

The TPS54339E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54339E 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 TPS54339E 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 TPS54339E to maintain high efficiency during lighter load conditions. The TPS54339E 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 TPS54339E is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.

The TPS54339E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54339E 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 TPS54339E 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 TPS54339E to maintain high efficiency during lighter load conditions. The TPS54339E 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 TPS54339E is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.
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引腳對引腳的功能與所比較的產品相同
TPS54239E 現行 具 Eco-mode 的 4.5V 至 23V 輸入，2-A 同步降壓轉換器 Pin-to-pin compatible lower current product (2 A).
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 This product has FCCM.

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類型 標題 日期
* Data sheet 4.5 V to 23 V Input, 3-A Synchronous Step-Down SWIFTTM Converter with ECO-ModeTM datasheet (Rev. A) 2012年 12月 12日
User guide TPS54339E Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 10月 7日

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開發板

TPS54339EEVM-056 — 採用 D-CAP2 模式且具有輕負載效率的降壓式轉換器的 TPS54339E 評估模組

德州儀器 TPS54339EEVM-056 評估模組 (EVM) 可幫助設計人員評估採用 ECO 模式的 TPS54339E 4.5V 至 23V 輸入、3-A 同步降壓式 SWIFT 轉換器的性能。

使用指南: PDF | HTML
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TPS54339E Unencrypted PSpice Transient Model Package (Rev. A)

SLVM722A.ZIP (49 KB) - PSpice Model
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