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TPS51117

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具有轻负载效率的 1.8V 至 28V 同步 D-CAP 降压控制器

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TPS51117

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产品详情

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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类型 标题 下载最新的英语版本 日期
* 数据表 TPS51117 Single Synchronous Step-Down Controller 数据表 (Rev. C) PDF | HTML 2015年 5月 15日
用户指南 TPS51117 降压控制器评估模块用户指南 (Rev. B) PDF | HTML 英语版 (Rev.B) PDF | HTML 2022年 7月 12日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

仿真模型

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

SLVJ002C.TSC (403 KB) - TINA-TI Reference Design
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仿真模型

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

SLVM020A.ZIP (35 KB) - TINA-TI Spice Model
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仿真模型

TPS51117 Unencrypted PSpice Transient Model Package (Rev. D)

SLVJ001D.ZIP (43 KB) - PSpice Model
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封装 引脚 CAD 符号、封装和 3D 模型
TSSOP (PW) 14 Ultra Librarian
VQFN (RGY) 14 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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