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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

立即訂購
產品規格表

TPS51117

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 1.8 Vin (max) (V) 28 Iout (max) (A) 10 Operating temperature range (°C) -40 to 85 Control mode D-CAP Topology Buck Rating Catalog Vout (min) (V) 0.76 Vout (max) (V) 5.5 Features Enable, Power good, Pre-Bias Start-Up, Synchronous Rectification Iq (typ) (µA) 400 Duty cycle (max) (%) 95 Number of phases 1
Vin (min) (V) 1.8 Vin (max) (V) 28 Iout (max) (A) 10 Operating temperature range (°C) -40 to 85 Control mode D-CAP Topology Buck Rating Catalog Vout (min) (V) 0.76 Vout (max) (V) 5.5 Features Enable, Power good, Pre-Bias Start-Up, Synchronous Rectification 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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