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TPS51123RGER +BOM

dual synchronous step-down controller

TPS51123RGER General Description

The TPS51123RGER is a highly efficient voltage-controlled synchronous buck converter IC that is specifically designed for use in portable electronic devices such as notebook computers and tablet PCs. With a wide input voltage range of 4.5V to 28V, this converter can deliver an adjustable output voltage range of 0.8V to 96% of the input voltage. Its high-performance PWM controller with integrated gate drivers ensures optimal efficiency and reduces the need for extra external components, making it a cost-effective solution for power management applications. Additionally, the TPS51123RGER is equipped with built-in overcurrent protection, thermal shutdown, and undervoltage lockout features to guarantee safe operation under various load conditions. Its compact 20-pin VQFN package further enhances its space efficiency, making it ideal for small form factor devices where size and performance are critical

Key Features

  • TPS51123RGER is a synchronous step-down controller with voltage output tracking
  • It operates with an input voltage range of 4.5V to 14V
  • The device features a 1% accurate voltage reference
  • It has an adjustable switching frequency up to 1.3MHz
  • TPS51123RGER includes cycle-by-cycle current limiting and thermal shutdown protection
  • Application

  • The TPS51123RGER is commonly used in various applications such as notebook computers, tablets, portable media players, and other portable electronic devices that require power management
  • It is specifically designed for powering DDR memory and other low-voltage devices
  • Specifications

    Vin (min) (V) 5.5 Vin (max) (V) 28
    Vout (min) (V) 2 Vout (max) (V) 5.5
    Iout (max) (A) 20 Iq (typ) (mA) 0.55
    Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 460
    Features Enable, Light Load Efficiency, Power good, Synchronous Rectification Operating temperature range (°C) -40 to 85
    Regulated outputs (#) 2 Number of phases 1
    Rating Catalog Control mode D-CAP
    Type Controller

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    In Stock: 6,121

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    Qty. Unit Price Ext. Price
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    10+ $1.892 $18.92
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