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TPS54295

現行

具可調式緩啟動的 4.5 V 至 18 V 輸入、雙 2 A 輸出同步降壓轉換器

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TPS54295

現行
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產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.76 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0013 Duty cycle (max) (%) 85
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.76 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0013 Duty cycle (max) (%) 85
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 mm) VQFN (RSA) 16 16 mm² (4 mm × 4 mm)
  • D-CAP2™ Control Mode
    • Fast Transient Response
    • No External Parts Required For Loop Compensation
    • Compatible With Ceramic Output Capacitors
  • Wide Input Voltage Range : 4.5 V to 18 V
  • Output Voltage Range : 0.76 V to 7 V
  • Highly Efficient Integrated FETs Optimized for Low Duty Cycle Applications
    • 150 mΩ (High-Side) and 100 mΩ (Low-Side)
  • High Initial Reference Accuracy
  • Low-Side rDS(ON) Lossless Current Sensing
  • Adjustable Soft Start
  • Non-Sinking Prebiased Soft Start
  • 700-kHz Switching Frequency
  • Cycle-by-Cycle Overcurrent Limit Control
  • OCL, OVP, UVP, UVLO, and TSD Protections
  • Adaptive Gate Drivers With Integrated Boost PMOS Switch
  • OCP Constant Due to Thermally Compensated rDS(ON) With 4000 ppm/°C
  • 16-Pin HTSSOP, 16-pin VQFN
  • Auto-Skip Eco-mode™ for High Efficiency at Light Load
  • D-CAP2™ Control Mode
    • Fast Transient Response
    • No External Parts Required For Loop Compensation
    • Compatible With Ceramic Output Capacitors
  • Wide Input Voltage Range : 4.5 V to 18 V
  • Output Voltage Range : 0.76 V to 7 V
  • Highly Efficient Integrated FETs Optimized for Low Duty Cycle Applications
    • 150 mΩ (High-Side) and 100 mΩ (Low-Side)
  • High Initial Reference Accuracy
  • Low-Side rDS(ON) Lossless Current Sensing
  • Adjustable Soft Start
  • Non-Sinking Prebiased Soft Start
  • 700-kHz Switching Frequency
  • Cycle-by-Cycle Overcurrent Limit Control
  • OCL, OVP, UVP, UVLO, and TSD Protections
  • Adaptive Gate Drivers With Integrated Boost PMOS Switch
  • OCP Constant Due to Thermally Compensated rDS(ON) With 4000 ppm/°C
  • 16-Pin HTSSOP, 16-pin VQFN
  • Auto-Skip Eco-mode™ for High Efficiency at Light Load

The TPS54295 is a dual, adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54295 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54295 use the D-CAP2 mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode operation at light loads. Eco-mode allows the TPS54295 to maintain high efficiency during lighter load conditions. The TPS54295 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5 V to 18 V.

The TPS54295 is available in a 4.4 mm × 5 mm 16-pin HTSSOP (PWP) package and 4 mm × 4 mm 16-pin VQFN (RSA) package, designed to operate at an ambient temperature range from –40°C to 85°C.

The TPS54295 is a dual, adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54295 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54295 use the D-CAP2 mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode operation at light loads. Eco-mode allows the TPS54295 to maintain high efficiency during lighter load conditions. The TPS54295 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5 V to 18 V.

The TPS54295 is available in a 4.4 mm × 5 mm 16-pin HTSSOP (PWP) package and 4 mm × 4 mm 16-pin VQFN (RSA) package, designed to operate at an ambient temperature range from –40°C to 85°C.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS54295 2-A Dual Channel Synchronous Step-Down Switcher With Integrated FET datasheet (Rev. D) PDF | HTML 2016/8/31
選擇指南 Power Management Guide 2018 (Rev. R) 2018/6/25
應用說明 D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 2013/1/2

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開發板

TPS54295EVM-057 — 適用於 TPS54295 同步降壓轉換器的評估模組

The TPS54295EVM-057 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS54295 Dual 2A Output, Synchronous Step-Down SWIFT Converter. The EVM operates from a 4.5V to 18V input and generates output voltages of 1.5V and 3.3V with a switch current limit of 2A minimum.
使用指南: PDF | HTML
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