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TPS53128

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4.5V 至 24V 同步双通道 D-CAP2 降压控制器

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TPS62933 正在供货 采用 SOT-583 封装的 3.8V 至 30V、3A、200kHz 至 2.2MHz、低 IQ 同步降压转换器 Wider Vin, higher frequency , lower Iq, and integrated FETs for smaller solution size

TPS53128

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产品详情

Rating Catalog Topology Buck Iout (max) (A) 15 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Control mode D-CAP2 Features Enable, Light-load efficiency, Prebias startup, Synchronous rectification Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 450 Duty cycle (max) (%) 89 Number of phases 1
Rating Catalog Topology Buck Iout (max) (A) 15 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.76 Control mode D-CAP2 Features Enable, Light-load efficiency, Prebias startup, Synchronous rectification Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 450 Duty cycle (max) (%) 89 Number of phases 1
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4 VQFN (RGE) 24 16 mm² 4 x 4
  • D-CAP2 Mode™ Control
    • Fast Transient Response
    • No External Parts Required for Loop
      Compensation
    • Compatible With Ceramic Output
      Capacitors
  • High Initial Reference Accuracy (±1%)
  • Low Output Ripple
  • Wide Input Voltage Range: 4.5 V to 24 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
  • Adjustable Soft Start
  • Non-Sinking Pre-Biased Soft Start
  • 350-kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limiting Control
  • 30-mV to 300-mV OCP Threshold Voltage
  • Thermally Compensated OCP by 4000 ppm/°C at
    ITRIP
  • Auto-Skip Eco-mode for High Efficiency at
    Light Load
  • APPLICATIONS
    • Point-of-Load Regulation in Low Power
      Systems for Wide Range of Applications
      • Digital TV Power Supply
      • Networking Home Terminal
      • Digital Set-Top Box (STB)
      • DVD Player/Recorder
      • Gaming Consoles
  • D-CAP2 Mode™ Control
    • Fast Transient Response
    • No External Parts Required for Loop
      Compensation
    • Compatible With Ceramic Output
      Capacitors
  • High Initial Reference Accuracy (±1%)
  • Low Output Ripple
  • Wide Input Voltage Range: 4.5 V to 24 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
  • Adjustable Soft Start
  • Non-Sinking Pre-Biased Soft Start
  • 350-kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limiting Control
  • 30-mV to 300-mV OCP Threshold Voltage
  • Thermally Compensated OCP by 4000 ppm/°C at
    ITRIP
  • Auto-Skip Eco-mode for High Efficiency at
    Light Load
  • APPLICATIONS
    • Point-of-Load Regulation in Low Power
      Systems for Wide Range of Applications
      • Digital TV Power Supply
      • Networking Home Terminal
      • Digital Set-Top Box (STB)
      • DVD Player/Recorder
      • Gaming Consoles

The TPS53128 is a dual, adaptive on-time D-CAP2 mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of various end equipment's power bus regulators with a low external component count and low standby consumption. The main control loop for the TPS53128 uses the D-CAP2 Mode topology which provides a very fast transient response with no external component.

The TPS53128 also has a proprietary circuit that enables the device to adapt not only low equivalent series resistance (ESR) output capacitors such as POSCAP/SP-CAP, but also ceramic capacitor. 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 part provides a convenient and efficient operation with conversion voltages from 4.5 V to 24 V and output voltage from 0.76 V to 5.5 V.

The TPS53128 is available in 4-mm x 4-mm 24 pin QFN (RGE) or 24 pin TSSOP (PW) packages, and is specified from –40°C to 85°C ambient temperature range.

The TPS53128 is a dual, adaptive on-time D-CAP2 mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of various end equipment's power bus regulators with a low external component count and low standby consumption. The main control loop for the TPS53128 uses the D-CAP2 Mode topology which provides a very fast transient response with no external component.

The TPS53128 also has a proprietary circuit that enables the device to adapt not only low equivalent series resistance (ESR) output capacitors such as POSCAP/SP-CAP, but also ceramic capacitor. 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 part provides a convenient and efficient operation with conversion voltages from 4.5 V to 24 V and output voltage from 0.76 V to 5.5 V.

The TPS53128 is available in 4-mm x 4-mm 24 pin QFN (RGE) or 24 pin TSSOP (PW) packages, and is 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 TPS53128 Dual Synchronous Step-Down Controller With Auto-Skip Eco-mode™ For Low Voltage Power Rails 数据表 (Rev. A) PDF | HTML 2016年 4月 27日

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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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