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AC/DC 和 DC/DC 控制器 (外部 FET)

TPS51117

現行

具輕負載效率的 1.8-V 至 28-V 同步 D-CAP 降壓控制器

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產品規格表

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功能與所比較的裝置相似
TPS51388 現行 具有可調整輸出的 4.5-V 至 24-V 輸入、12-A 同步降壓轉換器 Higher Efficiency and integrated FETs for smaller solution size

TPS51117

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 10 Vin (max) (V) 28 Vin (min) (V) 1.8 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Control mode D-CAP Features Enable, Power good, Prebias startup, Synchronous rectification Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 400 Duty cycle (max) (%) 95 Number of phases 1
Rating Catalog Topology Buck Iout (max) (A) 10 Vin (max) (V) 28 Vin (min) (V) 1.8 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Control mode D-CAP Features Enable, Power good, Prebias startup, Synchronous rectification Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 400 Duty cycle (max) (%) 95 Number of phases 1
TSSOP (PW) 14 32 mm² 5 x 6.4 VQFN (RGY) 14 12.25 mm² 3.5 x 3.5
  • High Efficiency, Low Power Consumption, 4.5-µA
    Typical Shutdown Current
  • Fixed Frequency Emulated On-Time Control,
    Adjustable from 100 kHz to 550 kHz
  • D-CAP™ Mode With 100-ns Load Step Response
  • < 1% Initial Reference Accuracy
  • Output Voltage Range: 0.75 V to 5.5 V
  • Wide Input Voltage Range: 1.8 V to 28 V
  • Selectable Auto-Skip/PWM-Only Operation
  • Temperature Compensated (4500 ppm/°C)
    Low-Side RDS(on) Overcurrent Sensing
  • Negative Overcurrent Limit
  • Integrated Boost Diode
  • Integrated OVP/UVP and Thermal Shutdown
  • Powergood Signal
  • Internal 1.2-ms Voltage Soft-Start
  • Integrated Output Discharge (Soft-Stop)
  • APPLICATIONS
    • Notebook Computers
    • I/O Supplies
    • System Power Supplies

All other trademarks are the property of their respective owners
  • High Efficiency, Low Power Consumption, 4.5-µA
    Typical Shutdown Current
  • Fixed Frequency Emulated On-Time Control,
    Adjustable from 100 kHz to 550 kHz
  • D-CAP™ Mode With 100-ns Load Step Response
  • < 1% Initial Reference Accuracy
  • Output Voltage Range: 0.75 V to 5.5 V
  • Wide Input Voltage Range: 1.8 V to 28 V
  • Selectable Auto-Skip/PWM-Only Operation
  • Temperature Compensated (4500 ppm/°C)
    Low-Side RDS(on) Overcurrent Sensing
  • Negative Overcurrent Limit
  • Integrated Boost Diode
  • Integrated OVP/UVP and Thermal Shutdown
  • Powergood Signal
  • Internal 1.2-ms Voltage Soft-Start
  • Integrated Output Discharge (Soft-Stop)
  • APPLICATIONS
    • Notebook Computers
    • I/O Supplies
    • System Power Supplies

All other trademarks are the property of their respective owners

The TPS51117 device is a cost-effective, synchronous buck controller for POL voltage regulation in notebook PC applications. The controller is dedicated for the operation of the Adaptive On-Time D-CAP mode. This mode provides ease-of-use, low external component count, and fast transient response. Auto-skip mode for high efficiency down to the milliampere load range, or PWM-only mode for low-noise operation is selectable.

The current-sensing scheme for positive overcurrent and negative overcurrent protection is loss-less low-side RDS(on) sensing plus temperature compensation. The device receives a 5-V (4.5 V to 5.5 V) supply from another regulator such as the TPS51120 or TPS51020. The conversion input can be either VBAT or a 5-V rail, ranging from 1.8 V to 28 V, and the output voltage range is from 0.75 V to 5.5 V.

The TPS51117 is available in a 14-pin VQFN or a 14-pin TSSOP package and is specified from –40°C to 85°C.

The TPS51117 device is a cost-effective, synchronous buck controller for POL voltage regulation in notebook PC applications. The controller is dedicated for the operation of the Adaptive On-Time D-CAP mode. This mode provides ease-of-use, low external component count, and fast transient response. Auto-skip mode for high efficiency down to the milliampere load range, or PWM-only mode for low-noise operation is selectable.

The current-sensing scheme for positive overcurrent and negative overcurrent protection is loss-less low-side RDS(on) sensing plus temperature compensation. The device receives a 5-V (4.5 V to 5.5 V) supply from another regulator such as the TPS51120 or TPS51020. The conversion input can be either VBAT or a 5-V rail, ranging from 1.8 V to 28 V, and the output voltage range is from 0.75 V to 5.5 V.

The TPS51117 is available in a 14-pin VQFN or a 14-pin TSSOP package and is specified from –40°C to 85°C.
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類型 標題 日期
* Data sheet TPS51117 Single Synchronous Step-Down Controller datasheet (Rev. C) PDF | HTML 2015年 5月 15日
User guide TPS51117 Buck Controller Evaluation Module User's Guide (Rev. B) PDF | HTML 2022年 2月 1日

設計與開發

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模擬型號

TPS51117 TINA-TI Transient Reference Design (Rev. C)

SLVJ002C.TSC (403 KB) - TINA-TI Reference Design
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模擬型號

TPS51117 TINA-TI Transient Spice Model (Rev. A)

SLVM020A.ZIP (35 KB) - TINA-TI Spice Model
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模擬型號

TPS51117 Unencrypted PSpice Transient Model Package (Rev. D)

SLVJ001D.ZIP (43 KB) - PSpice Model
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 14 Ultra Librarian
VQFN (RGY) 14 Ultra Librarian
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