Texas Instruments LMZ2050x SIMPLE SWITCHER®ナノ・モジュール・レギュレータ

Texas Instruments LMZ2050x SIMPLE SWITCHER®ナノモジュールレギュレータは使いやすい同期降圧DC-DCコンバータで、最大5.5Vの入力で最大2Aの負荷を駆動させる能力があり、非常に小型のソリューションサイズで卓越した効率と出力精度を発揮します。この革新的なパッケージは3.5mm×3.5mm×1.75mmという小型サイズにレギュレータとインダクタを搭載することにより基板面積を節約し、インダクタ選定に要する時間と費用を不要にします。LMZ2050xでは外付け部品が5個しか必要なく、シンプルで最適なPCBレイアウトを可能にするピン配列になっています。

特徴

  • Integrated inductor
  • Miniature 3.5mm × 3.5mm × 1.75mm package
  • 1A (LMZ20501) or 2A (LMZ20502) maximum load current
  • Input voltage range of 2.7V to 5.5V
  • Adjustable output voltage range of 0.8V to 3.6V
  • ±1% Feedback tolerance over temperature
  • 2.4µA (max) Quiescent current in shutdown
  • 3MHz Fixed PWM switching frequency
  • -40°C to 125°C Junction temperature range
  • Power good flag function
  • Pin-selectable switching modes
  • Internal compensation and soft-start
  • Current limit, thermal shutdown, and UVLO protection

アプリケーション

  • Point of load regulation
  • Space constrained applications

LMZ2050xEVM Eval Modules

Texas Instruments LMZ2050xEVM Evaluation Modules are capable of driving up to 2A load with excellent power conversion efficiency, output voltage accuracy, line and load regulation and load transient response. Each evaluation board is configured for 1.8V output voltage from 2.375V to 5.5V (LMZ20501EVM) or 2.7V to 5.5V (LMZ20502EVM) input, based on the resistor voltage divider RFBT and RFBB. Each board has a double sided six pin connector and turret terminals for easy connection and input supply, ground and load. The board features: three pin jumpers for EN, mode and frequency response analyses, power good monitoring when connected to a rail, inductor current sensing using a wire loop across the multilayer vias before the output capacitors, jumper option for mode pin to run the part on PFM or PWM at light load, frequency response jumper to measure the response across injection voltage resistor and the enable jumper to measure the quiescent current of the module.

公開: 2015-01-27 | 更新済み: 2022-03-11