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

TPS54202

現行

4.5V 至 28V 輸入、2A 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產品不同
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 Vin range, adjustable Fsw in smaller package.

TPS54202

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) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 26 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004
Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Light Load Efficiency, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 26 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • 4.5-V to 28-V wide input voltage range
  • Integrated 148-mΩ and 78-mΩ MOSFETs for 2-A, continuous output current
  • Low 2-µA shutdown, 45-µA quiescent current
  • Internal 5-mS soft start
  • Fixed 500-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 148-mΩ and 78-mΩ MOSFETs for 2-A, continuous output current
  • Low 2-µA shutdown, 45-µA quiescent current
  • Internal 5-mS soft start
  • Fixed 500-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 TPS54202 is a 4.5-V to 28-V input voltage range, 2-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 TPS54202 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.

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 TPS54202 is a 4.5-V to 28-V input voltage range, 2-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 TPS54202 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.

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 TPS54202 4.5-V to 28-V Input, 2-A Output, EMI Friendly Synchronous Step Down Converter datasheet (Rev. B) PDF | HTML 2021年 4月 6日
Application note 3-A DC/DC Buck Converter Selection Guide of Mid-Range VIN PDF | HTML 2023年 8月 3日
User guide TPS54202 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 10月 29日
Application note L1 and L2 EV Charger Electric Vehicle Service Equipment Design Considerations (Rev. B) 2021年 6月 9日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Application note Low Dropout Operation in a Buck Converter (Rev. A) 2019年 4月 1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 Use an ULQ buck regulator for energy-efficient power products PDF | HTML 2017年 9月 12日
Application note 800VA Pure Sine Wave Inverter's Reference Design (Rev. A) PDF | HTML 2017年 8月 1日
Technical article Powering the next generation of home appliances: How to get more from less PDF | HTML 2016年 10月 13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

TPS54202EVM-716 — TPS54202 2A 輸出同步降壓轉換器評估模組

The TPS54202EVM-716 is a fully assembled and tested circuit for evaluating the TPS54202 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 2 A. The solution offers a ultra-low quiescent supply current (IQ) (...)

使用指南: PDF | HTML
TI.com 無法提供
模擬型號

TPS54202 Unencrypted PSpice Transient Model Package (Rev. C)

SLVMBJ5C.ZIP (102 KB) - PSpice Model
下載
參考設計

TIDA-010250 — 1kW 無刷 DC 馬達逆變器參考設計

此參考設計闡明了採用 MSPM0G (Arm® Cortex®-M0+ 核心微控制器) 的馬達逆變器。此設計不僅支援 1-3 分流電阻器的無感測器磁場定向控制 (FOC) 演算法，也支援具霍爾或相位差編碼器介面 (QEI) 感測器馬達驅動演算法。此參考設計提供的軟硬體皆經過測試且隨時可用，有助於加快開發至上市時間。
Design guide: PDF
參考設計

TIDA-00946 — 採用雙層 TO-220 封裝規格且效率為 94% 的 5V 1A 低 EMI DC/DC 模組參考設計

This reference design demonstrates a 10.5-mm x 14.5-mm, 94% efficiency, low electromagnetic interference (EMI) DC/DC module with the TPS54202, replacing a low-dropout regulator (LDO) in major home appliance applications. High efficiency eliminates the need of heat sink for a smaller and (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00947 — 採用雙層 TO-220 封裝規格且效率為 92% 的 3.3V 1A 低 EMI DC/DC 模組參考設計

This reference design demonstrates a 10.5 mm x1 4.5 mm, 92% efficiency, low-electromagnetic interference (EMI) DC/DC module with the TPS54202, replacing a low dropout regulator (LDO) in major home appliance applications. The high efficiency eliminates the need of heat sink for a design that (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00948 — 採用單層 TO-247 封裝規格且效率為 94% 的 5V 1A 低 EMI DC/DC 模組參考設計

This reference design demonstrates a 15 mm x 20 mm, 94% efficiency, low electromagnetic interference (EMI) DC/DC module with the TPS54202, replacing low dropout regulator (LDO) in major home appliance applications. High efficiency eliminates the need of heat sink for a smaller design and and (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00776 — 效率高於 98% 的小型通用 350W CCM PFC 參考設計

The TIDA-00776 design  is a 350-W cost competitive power factor regulator converter designed for refrigerators and other appliances applications. This reference design is a Continuous-Conduction-Mode (CCM) boost converter that uses TI’s UCC28180 PFC controller and has all the necessary (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP30825 — 150-VDC - 430-VDC 輸入、多輸出波谷切換返馳參考設計

This 10-W non-isolated flyback reference design uses the UCC28742 controller to generate four outputs (5 V at 150 mA, 12 V at 690 mA, 15 V at 80 mA, 18 V at 20 mA). The controller provides constant-voltage and constant-current regulation. Transistors are used in place of an optocoupler feedback (...)
Test report: PDF
電路圖: 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
參考設計

TIDA-00949 — 採用單層 TO-247 封裝規格且效率為 92% 的 3.3V 1A 低 EMI DC/DC 模組參考設計

This reference design demonstrates a 15 mm x 20 mm, 92% efficiency, low electromagnetic interference (EMI) DC/DC module with TPS54202, replacing low dropout regulator (LDO) in major home appliance applications. The high efficiency eliminates the need of heat sink for a smaller and cheaper (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01586 — 具備日/夜視功能且適用於 IP 網路攝影機的 IR LED 照明與 ICR 控制參考設計

This reference design showcases an Infrared LED illumination sub-system for Internet Protocol (IP) network cameras with day and night vision. The system features a cut filter control, LED dimming, ambient light measuring and ballasting for current of each IR LED string. Ballasting is an (...)
Design guide: PDF
電路圖: PDF
封裝 引腳 下載
SOT-23-THN (DDC) 6 檢視選項
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