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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS54227

現行

採用 HSOP 和 VSON 封裝的 4.5 V 至 18 V 輸入、2 A 輸出同步降壓轉換器

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TPS562211 現行 採用 SOT583，具 1% 準確度、PG/SS 和 PFM/強制 PWM 的 4.2-V 至 18-V、2-A、同步降壓轉換器 This product has improved performance, selectable power good or soft start feature

TPS54227

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 85 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (A) 0.0008
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (A) 0.0008
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 VSON (DRC) 10 9 mm² 3 x 3
  • D-CAP2™ Mode Enables Fast Transient
    Response
  • Low Output Ripple and Allows Ceramic Output
    Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 7 V
  • Highly-Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    • 155 mΩ (High-Side) and 108 mΩ (Low-Side)
  • High Efficiency, Less Than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft-Start
  • Prebiased Soft-Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle-By-Cycle Overcurrent 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 18 V
  • Output Voltage Range: 0.76 V to 7 V
  • Highly-Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    • 155 mΩ (High-Side) and 108 mΩ (Low-Side)
  • High Efficiency, Less Than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft-Start
  • Prebiased Soft-Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle-By-Cycle Overcurrent Limit

The TPS54227 device is an adaptive ON-time D-CAP2 mode synchronous buck converter. The TPS54227 enables system designers to complete the bus regulators for a suite of various end equipment with a cost-effective, low component count, low standby current solution. The main control loop for the TPS54227 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54227 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 TPS54227 is available in the 8-pin HSOP package and 10-pin VSON, and is designed to operate from –40°C to 85°C.

The TPS54227 device is an adaptive ON-time D-CAP2 mode synchronous buck converter. The TPS54227 enables system designers to complete the bus regulators for a suite of various end equipment with a cost-effective, low component count, low standby current solution. The main control loop for the TPS54227 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54227 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 TPS54227 is available in the 8-pin HSOP package and 10-pin VSON, and is designed to operate from –40°C to 85°C.
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最新 TPS562206 現行 採用 SOT563 且具 FCCM 模式的 4.2-V 至 17-V 輸入， 2-A 同步降壓轉換器 This product has a smaller package with less external component count
最新 TPS562242 現行 採用 SOT563 的 3-V 至 17-V 輸入電壓、2-A、1.4-MHz 同步降壓轉換器 This product has Eco-mode™ operation, 1.2MHz switching frequency, and smaller package

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類型 標題 日期
* Data sheet TPS54227 4.5-V to 18-V Input, 2-A SynchronousStep-Down Converter datasheet (Rev. C) PDF | HTML 2015年 12月 30日
User guide TPS54227 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 10月 27日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25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

TPS54227EVM-686 — 適用於 TPS54227 同步降壓轉換器的評估模組

The TPS54227EVM-686 is a fully assembled and tested circuit for evaluating the TPS54227 synchronous step-down converter. The TPS54227EVM-686 operates from a 4.5-V to 18-V input and provides a 1.05-V output up to 2-A load. The main control loop of TPS54227 uses D-CAP2™ mode control, which (...)

使用指南: PDF | HTML
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模擬型號

TPS54227 TINA-TI Transient Reference Design

SLVM384.TSC (654 KB) - TINA-TI Reference Design
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模擬型號

TPS54227 TINA-TI Transient Spice Model

SLVM383.ZIP (41 KB) - TINA-TI Spice Model
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模擬型號

TPS54227 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM145A.ZIP (43 KB) - PSpice Model
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參考設計

PMP7026 — 4.5V-18V 輸入 3.3W 同步降壓參考設計

The PMP7026 reference design uses the TPS54227 synchronous step-down converter to generate a non-isolated output (3.3V @ 1A). Adaptive on-time D-CAP2 mode provides a fast transient response with no external compensation components.
Test report: PDF
電路圖: PDF
參考設計

PMP6638 — 機上盒電源解決方案

This reference design is an example of power-trees inside a set-top-box. It performs DC-DC conversions, from 12V supply, for 1.0V/1.2V/1.8V/2.5V/3.3V/5V rails.
Test report: PDF
電路圖: PDF
封裝 引腳 下載
HSOIC (DDA) 8 檢視選項
VSON (DRC) 10 檢視選項
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