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TPS53128

アクティブ

4.5V ～ 24V、デュアル、D-CAP2 同期整流降圧コントローラ

ご注文はこちら
データシート

この製品には新バージョンがあります

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TPS62933 アクティブ SOT-583 パッケージ封止、3.8V ～ 30V、3A、200kHz ～ 2.2MHz、低静止電流 (IQ)、同期整流降圧コンバータ Wider Vin, higher frequency , lower Iq, and integrated FETs for smaller solution size

TPS53128

アクティブ
データシート ご注文はこちら

製品詳細

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 Duty cycle (max) (%) 89 Iq (typ) (A) 0.00045 Number of phases 1 Operating temperature range (°C) -40 to 85
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 Duty cycle (max) (%) 89 Iq (typ) (A) 0.00045 Number of phases 1 Operating temperature range (°C) -40 to 85
VQFN (RGE) 24 16 mm² (4 mm × 4 mm) TSSOP (PW) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • 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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上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート TPS53128 Dual Synchronous Step-Down Controller With Auto-Skip Eco-mode™ For Low Voltage Power Rails データシート (Rev. A) PDF | HTML 2016/04/27

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