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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS561208

現行

4.5V 至 17V 輸入、1A 輸出、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
最新 TPS561246 現行 具 FCCM 模式且採用 SOT563 的 4.2V 至 17V 輸入電壓、1A、1.2MHz 同步降壓轉換器 Improved efficiency and higher switching frequency in a smaller package

TPS561208

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) 1 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 580 Switching frequency (max) (kHz) 580 Features Enable, Forced PWM, Soft Start Fixed, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 400 Duty cycle (max) (%) 80
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 580 Switching frequency (max) (kHz) 580 Features Enable, Forced PWM, Soft Start Fixed, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 400 Duty cycle (max) (%) 80
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • TPS561201 and TPS561208 1-A converter integrated 140-mΩ and 84-mΩ FETs
  • D-CAP2™ mode control with fast transient response
  • Input voltage range: 4.5 V to 17 V
  • Output voltage range: 0.76 V to 7 V
  • Pulse-skip mode (TPS561201) or continuous current mode (TPS561208)
  • 580-kHz switching frequency
  • Low shutdown current less than 10 µA
  • 2% Feedback voltage accuracy (25°C)
  • Start-up from pre-biased output voltage
  • Cycle-by-cycle overcurrent limit
  • Hiccup-mode overcurrent protection
  • Non-latch UVP and TSD protections
  • Fixed soft start: 1.0 ms
  • Create a custom design using the TPS56120x with the WEBENCH Power Designer
  • TPS561201 and TPS561208 1-A converter integrated 140-mΩ and 84-mΩ FETs
  • D-CAP2™ mode control with fast transient response
  • Input voltage range: 4.5 V to 17 V
  • Output voltage range: 0.76 V to 7 V
  • Pulse-skip mode (TPS561201) or continuous current mode (TPS561208)
  • 580-kHz switching frequency
  • Low shutdown current less than 10 µA
  • 2% Feedback voltage accuracy (25°C)
  • Start-up from pre-biased output voltage
  • Cycle-by-cycle overcurrent limit
  • Hiccup-mode overcurrent protection
  • Non-latch UVP and TSD protections
  • Fixed soft start: 1.0 ms
  • Create a custom design using the TPS56120x with the WEBENCH Power Designer

The TPS561201 and TPS561208 are simple, easy-to-use, 1-A synchronous step-down converters in SOT-23 package.

The devices are optimized to operate with minimum external component counts and also optimized to achieve low standby current.

These switch mode power supply (SMPS) devices employ D-CAP2 mode control, providing a fast transient response and supporting both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

The TPS561201 operates in pulse skip mode, which maintains high efficiency during light load operation. The TPS561201 and TPS561208 are available in a 6-pin 1.6 × 2.9 (mm) SOT (DDC) package and specified from –40°C to 125°C of junction temperature.

The TPS561201 and TPS561208 are simple, easy-to-use, 1-A synchronous step-down converters in SOT-23 package.

The devices are optimized to operate with minimum external component counts and also optimized to achieve low standby current.

These switch mode power supply (SMPS) devices employ D-CAP2 mode control, providing a fast transient response and supporting both low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

The TPS561201 operates in pulse skip mode, which maintains high efficiency during light load operation. The TPS561201 and TPS561208 are available in a 6-pin 1.6 × 2.9 (mm) SOT (DDC) package and specified from –40°C to 125°C of junction temperature.
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TPS562208 現行 採用 FCCM 模式的 4.5 V 至 17 V 輸入、2 A 輸出同步降壓轉換器 Pin-to-pin compatible higher current product.

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類型 標題 日期
* Data sheet TPS56120x 4.5-V to 17-V Input, 1-A Synchronous Step-Down Voltage Regulator in 6-Pin SOT-23 datasheet (Rev. A) PDF | HTML 2020年 9月 24日
Application note How to do Co-Layout Between SOT-563 Package and SOT-236 Package (Rev. A) PDF | HTML 2023年 7月 10日
EVM User's guide TPS561208 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 8月 2日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Application note Optimize DC-DC Layout for SOT Package to Improve Thermal and Voltage Spike 2017年 9月 27日
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 2013年 1月 2日

設計與開發

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開發板

TPS561208EVM-896 — TPS561208 2A 輸出、同步 SWIFT™ 降壓轉換器評估模組

The TPS561208 is a single, adaptive on-time, D-CAP2™ mode, synchronous buck converter requiring a very low external component count. The D-CAP2 control circuit is optimized for low-ESR output capacitors such as POSCAP, SP-CAP, or ceramic types and features fast transient response with no (...)
使用指南: PDF | HTML
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模擬型號

TPS561208 PSpice Transient Model

SLVMC28.ZIP (822 KB) - PSpice Model
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參考設計

TIDA-010034 — IEEE802.3at Type-1 PoE 和 12V 適配器輸入到 IP 網路攝影機的負載點參考設計

Power over Ethernet (PoE) enables power to be delivered over the same ethernet cable as data with no danger of cross-talk, interference, or corruption of the data streams. This reference design showcases end-to-end power tree for an IP network camera powered using PoE or 12-V adapter based on the (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP21065 — 適用於機上盒的超低待機功耗、高效率 DC-DC 電源參考設計

The PMP21065 Reference design operates off a typical 12V DC input to produce several common rails seen in set top boxes today. The key objectives of the design are to be low-cost, small in size and low stand-by power with high efficiency to help customers meet compliance to new regulatory (...)
Test report: 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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