TPS51124

正在供貨

適用于低輸出電壓軌的 3V 至 28V 雙路同步降壓控制器

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TPS51388 正在供貨 具有 4.5V 至 24V 輸入和可調節輸出的 12A 同步降壓轉換器 Higher Efficiency and integrated FETs for smaller solution size

產品詳情

Rating Catalog Topology Buck Iout (max) (A) 15 Vin (max) (V) 28 Vin (min) (V) 3 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Control mode D-CAP Features Enable, Light-load efficiency, Power good, Synchronous rectification Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 350 Duty cycle (max) (%) 88 Number of phases 1
Rating Catalog Topology Buck Iout (max) (A) 15 Vin (max) (V) 28 Vin (min) (V) 3 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Control mode D-CAP Features Enable, Light-load efficiency, Power good, Synchronous rectification Operating temperature range (°C) -40 to 85 Iq (typ) (μA) 350 Duty cycle (max) (%) 88 Number of phases 1
VQFN (RGE) 24 16 mm2 4 x 4
  • High Efficiency, Low-Power Consumption, Shutdowns to <1 μA
  • Fixed Frequency Emulated On-Time Control, Frequency Selectable
    From Three Options
  • D-CAP Mode Enables Fast Transient Response
  • Auto-Skip Mode
  • Less Than 1% Initial Reference Accuracy
  • Low Output Ripple
  • Wide Input Voltage Range: 3 V to 28 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Low-Side RDS(ON) Loss-less Current Sensing
  • Adaptive Gate Drivers With Integrated Boost Diode
  • Internal 1.2-ms Voltage-Servo Soft-Start
  • Powergood Signals for Each Channel With Delay Timer
  • Output Discharge During Disable, Fault
  • APPLICATIONS
    • Notebook I/O and Low-Voltage System Bus

All other trademarks are the property of their respective owners
  • High Efficiency, Low-Power Consumption, Shutdowns to <1 μA
  • Fixed Frequency Emulated On-Time Control, Frequency Selectable
    From Three Options
  • D-CAP Mode Enables Fast Transient Response
  • Auto-Skip Mode
  • Less Than 1% Initial Reference Accuracy
  • Low Output Ripple
  • Wide Input Voltage Range: 3 V to 28 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Low-Side RDS(ON) Loss-less Current Sensing
  • Adaptive Gate Drivers With Integrated Boost Diode
  • Internal 1.2-ms Voltage-Servo Soft-Start
  • Powergood Signals for Each Channel With Delay Timer
  • Output Discharge During Disable, Fault
  • APPLICATIONS
    • Notebook I/O and Low-Voltage System Bus

All other trademarks are the property of their respective owners

The TPS51124 is a dual, adaptive on-time D-CAP™ mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of notebook power bus regulators with the absolute lowest external component count and lowest standby consumption. The fixed frequency emulated adaptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high efficiency down to milliampere range. The main control loop for the TPS51124 uses the D-CAP mode that optimized for low ESR output capacitors such as POSCAP or SP-CAP promises fast transient response with no external compensation. Simple and separate power good signals for each channel allow flexibility of power sequencing. The part provides a convenient and efficient operation with supply input voltages (V5IN, V5FILT) ranging from 4.5 V to 5.5 V, conversion voltages (drain voltage for the synchronous high-side MOSFET) from 3 V to 28 V and output voltages from 0.76 V to 5.5 V.

The TPS51124 is available in 24-pin VQFN package specified from –40°C to 85°C ambient temperature range.

The TPS51124 is a dual, adaptive on-time D-CAP™ mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of notebook power bus regulators with the absolute lowest external component count and lowest standby consumption. The fixed frequency emulated adaptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high efficiency down to milliampere range. The main control loop for the TPS51124 uses the D-CAP mode that optimized for low ESR output capacitors such as POSCAP or SP-CAP promises fast transient response with no external compensation. Simple and separate power good signals for each channel allow flexibility of power sequencing. The part provides a convenient and efficient operation with supply input voltages (V5IN, V5FILT) ranging from 4.5 V to 5.5 V, conversion voltages (drain voltage for the synchronous high-side MOSFET) from 3 V to 28 V and output voltages from 0.76 V to 5.5 V.

The TPS51124 is available in 24-pin VQFN package specified from –40°C to 85°C ambient temperature range.
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類型 標題 下載最新的英語版本 日期
* 數據表 TPS51124 Dual Synchronous Step-Down Controller for Low-Voltage Power Rails 數據表 (Rev. C) PDF | HTML 2014年 12月 31日
用戶指南 TPS51124 降壓控制器評估模塊用戶指南 (Rev. B) PDF | HTML 英語版 (Rev.B) PDF | HTML 2022年 7月 20日
應用手冊 Intel Atom Z5xx [Menlow] 參考設計 2010年 10月 8日
應用手冊 Intel Core i3，i5，i7 [Arrandale] 參考設計 英語版 2010年 10月 8日
應用手冊 Adaptive Constant On-Time (D-CAPTM) Control Study in Notebook Applications (Rev. B) 2007年 12月 4日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

仿真模型

TPS51124 PSpice Model (Rev. B)

SLVJ003B.ZIP (95 KB) - PSpice Model
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仿真模型

TPS51124 TINA-TI Reference Design (Rev. B)

SLVJ004B.ZIP (117 KB) - TINA-TI Reference Design
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仿真模型

TPS51124 TINA-TI Transient Spice Model

SLVM021.ZIP (18 KB) - TINA-TI Spice Model
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封裝 引腳 CAD 符號、封裝和 3D 模型
VQFN (RGE) 24 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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