TPS56528 4.5V ~ 18V 入力、5A 同期整流・降圧コンバータ、D-CAP2 モードおよび自動スキップ Eco-Mode 付き | TIJ.co.jp

TPS56528
この製品はすでに市場にリリースされており、ご購入できます。 一部の製品は、より新しい代替品を使用できる可能性があります。
4.5V ~ 18V 入力、5A 同期整流・降圧コンバータ、D-CAP2 モードおよび自動スキップ Eco-Mode 付き

 

推奨代替製品

  • TPS54628  -  出力電流がより高い製品をお探しの場合、TPS54628 をご覧ください。
  • TPS565201  -  最小の外部部品点数で設計を簡素化
  • TPS56428  -  より小さい出力電流

概要

The TPS56528 device is an adaptive on-time D-CAP2&rade; mode synchronous buck converter. The TPS56528 enables system designers to complete the suite of various end-equipment power bus regulators with a cost-effective, low component count, low standby current solution. The main control loop for the TPS56528 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and advanced Eco-Mode™ operation at light loads. Advanced Eco-Mode™ allows the TPS56528 to maintain high efficiency during lighter load conditions. The TPS56528 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.6 V and 7 V. The device also features a fixed 1-ms soft-start time and power good output. The TPS56528 is available in the 8-pin SO PowerPAD™ package, and designed to operate from –40°C to 85°C.

特長

  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.6 V to 7 V
  • Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications –68 mΩ (High-Side) and 37 mΩ (Low-Side)
  • High Efficiency, Less Than 10 µA at Shutdown
  • High Initial Band-Gap Reference Accuracy
  • Prebiased Soft Start
  • 650-kHz Switching Frequency (fSW)
  • Cycle-By-Cycle Overcurrent Limit
  • Advanced Auto-Skip Eco-Mode™ for High Efficiency at Light Load
  • Power Good Output
  • Fixed Soft Start: 1 ms

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WEBENCH® Designer TPS56528

  最小   最大 範囲
入力電圧  V 4.5 to 18.0V
出力電圧  V 0.6 to 7V
負荷電流  A ≤ 5A
周囲温度  °C -40 to 125°C

機能一覧

他の製品と比較 降圧コンバータ(スイッチ内蔵) メール Excelへダウンロード
Part number オーダー・オプション Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS56528 ご注文 4.5     18     0.6     7     5     1     650     650     0.25     Enable
Light Load Efficiency
Synchronous Rectification
Soft Start Fixed    
D-CAP2     65     -40 to 125     Catalog     SO PowerPAD | 8     Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)    
TPS54527 ご注文 4.5     18     0.76     6     5     1     650     650     0.9     Enable
Synchronous Rectification
Soft Start Adjustable    
D-CAP2     85     -40 to 85     Catalog     SO PowerPAD | 8     Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)    
TPS54528 ご注文 4.5     18     0.76     6     5     1     650     650     0.9     Enable
Light Load Efficiency
Synchronous Rectification
Soft Start Adjustable    
D-CAP2     85     -40 to 85     Catalog     SO PowerPAD | 8     Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)