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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS54302

現行

4.5-V 至 28-V 輸入、3-A 輸出、適用 EMI 的同步降壓轉換器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
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 30 VIN with higher frequency and lower IQ.

TPS54302

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 400 Features Enable, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 26 Iq (typ) (µA) 40 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 400 Features Enable, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 26 Iq (typ) (µA) 40 Duty cycle (max) (%) 100
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • 4.5-V to 28-V wide input voltage range
  • Integrated 85-mΩ and 40-mΩ MOSFETs for 3-A, continuous output current
  • Low 2-µA shutdown, 45-µA quiescent current
  • Internal 5-ms soft start
  • Fixed 400-kHz switching frequency
  • Frequency spread spectrum to reduce EMI
  • Advanced Eco-mode™ pulse skip
  • Peak current-mode control
  • Internal loop compensation
  • Overcurrent protection for both MOSFETs with hiccup mode protection
  • Overvoltage protection
  • Thermal shutdown
  • SOT-23 (6) package
  • 4.5-V to 28-V wide input voltage range
  • Integrated 85-mΩ and 40-mΩ MOSFETs for 3-A, continuous output current
  • Low 2-µA shutdown, 45-µA quiescent current
  • Internal 5-ms soft start
  • Fixed 400-kHz switching frequency
  • Frequency spread spectrum to reduce EMI
  • Advanced Eco-mode™ pulse skip
  • Peak current-mode control
  • Internal loop compensation
  • Overcurrent protection for both MOSFETs with hiccup mode protection
  • Overvoltage protection
  • Thermal shutdown
  • SOT-23 (6) package

The TPS54302 device is a 4.5-V to 28-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation, and 5-ms internal soft start to reduce component count.

By integrating the MOSFETs and employing the SOT-23 package, the TPS54302 device achieves the high power density and offers a small footprint on the PCB.

Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss.

In the TPS54302 device, the frequency spread spectrum operation is introduced for EMI reduction.

Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.

The TPS54302 device is a 4.5-V to 28-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation, and 5-ms internal soft start to reduce component count.

By integrating the MOSFETs and employing the SOT-23 package, the TPS54302 device achieves the high power density and offers a small footprint on the PCB.

Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss.

In the TPS54302 device, the frequency spread spectrum operation is introduced for EMI reduction.

Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.
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類型 標題 日期
* Data sheet TPS54302 4.5-V to 28-V Input, 3-A Output, EMI-Friendly Synchronous Step-Down Converter datasheet (Rev. B) PDF | HTML 2021年 4月 16日
User guide TPS54302 Step-Down Converter Evaluation Module User's Guide (Rev. B) PDF | HTML 2021年 10月 11日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Application note Using the TPS54x02 to Create an Inverting Power Supply 2018年 6月 15日
Application note SOT23 Package Thermal Consideration 2018年 3月 2日
Technical article Upgrade your TO-220 linear regulator with a pin-compatible buck power module PDF | HTML 2017年 9月 22日
Technical article Use an ULQ buck regulator for energy-efficient power products PDF | HTML 2017年 9月 12日
Application note How to Design a Thermally-Efficient Integrated BLDC Motor Drive PCB (Rev. A) 2017年 2月 5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

TPS54302EVM-716 — TPS54302 同步降壓轉換器評估模組

The TPS54302EVM-716 is a fully assembled and tested circuit for evaluating the TPS54302 synchronous step-down SWIFT™ converter. The EVM converts a 8-V to 28-V input voltage to a regulated 5-V output voltage that delivers up to 3 A. The TPS54302 delivers 40-μA ultra-low quiescent supply (...)

使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS54302 Unencrypted PSpice Transient Model (Rev. A)

SLVMBL9A.ZIP (103 KB) - PSpice Model
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參考設計

PMP40937 — 4s 電池充電器參考設計

This reference design is for 4-cell battery charging applications such as vacuum robot or robotic lawn mower, etc. It employs the buck battery charger BQ25672 with a wide input and output range for 1-4 cell battery charging. External ship FET is introduced to minimize the battery leakage current (...)
Test report: PDF
參考設計

TIDA-010055 — 非隔離電源架構，具有用於保護繼電器模組的診斷參考設計

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23-THN (DDC) 6 Ultra Librarian
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