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Richtek

RT8025為高效率,脈波寬度調變(PWM)的降壓型 DC/DC 轉換器,在可輸入範圍2.5V 至5.5V,輸出電流可達400mA,適用于由單一鋰電池供電的可攜式電子裝置,例如行動電話、PDA等掌上型裝置。由於內建低RDS(ON)

應用

  • Cellular Telephones
  • Personal Information Appliances
  • Wireless and DSL Modems
  • MP3 Players
  • Portable Instruments
主要規格
RT8025
Status Active
Vin (min) (V) 2.5
Vin (max) (V) 5.5
Number of Outputs 1
Vout (min) (V) 0.5
Vout (max) (V) 5.5
Output Adj. Method Fixed;Resistor
Iout (max) (A) 0.4
Current Limit (typ) (A) 1.5
Freq (typ) (kHz) 1250
Ext Sync No
Ron_HS (typ) (mOhm) 300
Ron_LS (typ) (mOhm) 250
Iq (typ) (mA) 0.05
Features 100% Duty Cycle;Current Mode Control;Enable Input;Internal Compensation;OCP;OTP;PSM;Stable with Ceramic Capacitor
Package Type TSOT-25;SOT-25
關鍵特性
  • 2.5V 至5.5V輸入電壓範圍
  • 可調輸出電壓範圍 0.5V 至VIN
  • 1.0V, 1.2V, 1.3V, 1.5V, 1.8V, 2.5V 與3.3V 的 固定/可調 輸出電壓
  • 400mA 輸出電流
  • 效率最高達95%
  • 不需外接蕭特基二極體
  • 1.25MHz 定頻PWM操作
  • 具有 SOT-23-5 與 TSOT-23-5 兩種封裝
  • 符合RoHS規範與無鹵特性
Additional Documents
Title Last Update ShareDownload
Power Management Components for Lithium-Ion Battery Powered Applications
鋰離子電池電源管理IC選擇指南
2020/12/07
Reference Design
TitleLast UpdateDownload
立錡負載暫態量測工具2018/11/01
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT8025GJ5TSOT-253,000 Request Digikey 1 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
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