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RT9198/A 是针对无线射频应用的性能需求和空间考虑而设计的产品,具有极低的噪声和静态电流消耗。即使是工作在直通状态下,其电流消耗也只有轻微的增加,可有效延长电池使用时间。它可与低 ESR 陶瓷电容配合稳定工作,对空间需求极低,这对掌上型无线应用至关重要。RT9198/A 在关机模式下仅消耗低于 0.01μA 的电流,启动过程时长短于 50μs。它具有极低的电压差、高输出电压精度、电流限制保护和高纹波抑制比,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 等封装形式供货,其输出电压范围为 1.5V~5V,级差为 0.1V。

应用

  • CDMA/GSM Cellular Handsets
  • 电池供电设备
  • 笔记本电脑
  • Hand-Held Instruments
  • PCMCIA Cards
  • Portable Information Appliances
主要规格
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
关键特性
  • 低噪声,适合射频产品使用
  • 对输入、输出瞬变的快速响应
  • 快速启动过程(典型值 50μs )
  • 关机模式下的电流消耗低于 0.01μA
  • 低压差:220mV@300mA
  • 宽输入电压范围: 2.5V~5.5V
  • TTL 逻辑兼容的控制输入
  • 低温度系数
  • 电流限制保护
  • 热关机保护
  • 仅需 1μF 输出电容即可稳定工作
  • 高电源纹波抑制比
  • 客制化的电压选项
  • 符合 RoHS 规范,不含卤素
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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