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TPS51124

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3-V to 28-V, dual-synchronous buck controller for low output voltage rails

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数据表

TPS51124

正在供货
数据表 立即订购

产品详情

Vin (min) (V) 3 Vin (max) (V) 28 Iout (max) (A) 15 Operating temperature range (°C) -40 to 85 Control mode D-CAP Rating Catalog Vout (min) (V) 0.76 Vout (max) (V) 5.5 Iq (typ) (A) 0.00035 Duty cycle (max) (%) 88
Vin (min) (V) 3 Vin (max) (V) 28 Iout (max) (A) 15 Operating temperature range (°C) -40 to 85 Control mode D-CAP Rating Catalog Vout (min) (V) 0.76 Vout (max) (V) 5.5 Iq (typ) (A) 0.00035 Duty cycle (max) (%) 88
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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类型 标题 下载最新的英语版本 日期
* 数据表 TPS51124 Dual Synchronous Step-Down Controller for Low-Voltage Power Rails 数据表 (Rev. C) PDF | HTML 2014年 12月 31日
用户指南 TPS51124 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 20日
应用手册 Intel Atom Z5xx [Menlow] 参考设计 2010年 10月 8日
应用手册 Intel Core i3，i5，i7 [Arrandale] 参考设计 英语版 2010年 10月 8日
应用手册 Adaptive Constant On-Time (D-CAPTM) Control Study in Notebook Applications (Rev. B) 2007年 12月 4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

TPS51124 PSpice Model (Rev. B)

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

TPS51124 TINA-TI Reference Design (Rev. B)

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

TPS51124 TINA-TI Transient Spice Model

SLVM021.ZIP (18 KB) - TINA-TI Spice Model
下载
封装 引脚 下载
VQFN (RGE) 24 查看选项
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

支持和培训

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