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RT9198/A 是針對無線射頻應用的性能需求和空間考慮而設計的產品,具有極低的雜訊和靜態電流消耗。即使是工作在直通狀態下,其電流消耗也只有輕微的增加,可有效延長電池使用時間。它可與低 ESR 陶瓷電容配合穩定工作,對空間需求極低,這對掌上型無線應用至關重要。RT9198/A 在關機模式下僅消耗低於 0.01μA 的電流,啟動過程時長短於 50μs。它具有極低的電壓差、高輸出電壓精度、電流限制保護和高漣波抑制比,可以 SOT-23-3、SOT-23-5、TSOT-23-3、TSOT-23-5、SC-70-5、SC-82、MSOP-8 和 WDFN-6L 2x2 等封裝形式供貨,其輸出電壓範圍為 1.5V~5V,級差為 0.1V。

應用

  • CDMA/GSM Cellular Handsets
  • 電池供電設備
  • 筆記型電腦
  • Hand-Held Instruments
  • PCMCIA Cards
  • Portable Information Appliances
主要規格
RT9198 RT9198A
Status Active Active
Vin (min) (V) 2.5 2.5
Vin (max) (V) 5.5 5.5
Vout (min) (V) 1.5 1.5
Vout (max) (V) 5 5
Output Adj. Method Fixed Fixed
Accuracy (+/- %) 2 2
Iout (max) (mA) 300 300
Iq (typ) (uA) 90 90
Vdropout @ rated current (typ) (mV) 220 @ 0.3A 220 @ 0.3A
Cout Type Ceramic Ceramic
Features Enable Input;Extra Low Noise;High PSRR;Low Dropout;OCP;Output Discharge;Stable with Ceramic Capacitor Enable Input;Extra Low Noise;High PSRR;Low Dropout;OCP;Output Discharge;Stable with Ceramic Capacitor
Package Type SOT-23;SOT-25;TSOT-25 SOT-23;SOT-25;TSOT-25
關鍵特性
  • 低雜訊,適合射頻產品使用
  • 對輸入、輸出瞬變的快速回應
  • 快速啟動過程(典型值 50μs )
  • 關機模式下的電流消耗低於 0.01μA
  • 低壓差:220mV@300mA
  • 寬輸入電壓範圍: 2.5V~5.5V
  • TTL 邏輯相容的控制輸入
  • 低溫度係數
  • 電流限制保護
  • 熱關機保護
  • 僅需 1μF 輸出電容即可穩定工作
  • 高電源漣波抑制比
  • 客制化的電壓選項
  • 符合 RoHS 規範,不含鹵素
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT9198-18GBRSOT-253,000 Request Digikey 2,481 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT9198-25GBRSOT-253,000 Request Digikey Lead-Time: 14 weeks Not Available
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT9198-25GJ5RTSOT-253,000 Request Digikey 3,000 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT9198-28GBRSOT-253,000 Request Digikey 3,000 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT9198-30GBRSOT-253,000 Request Digikey 2,890 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT9198-33GBRSOT-253,000 Request Digikey 9,721 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
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