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RT6212A/B 為高效率的DC-DC單片式同步整流轉換器，輸入電壓範圍從4.5V至18V，輸出電流至2A。RT6212A/B的採用的ACOT架構可增進暫態響應的表現並固定操作頻率。逐週期形式的限流機制可在輸出短路時提供電路保護作用，緩啟動機制則可消除啟動瞬間的輸入電流湧浪的問題。此外RT6212A/B提供輸出低電壓保護、輸出過電流與過熱關機保護功能。

應用

  • 機上盒
  • 可攜式電視
  • 路由器
  • DSL 解調器
  • LCD 電視
主要規格
RT6212A RT6212B
Status Active Active
Vin (min) (V) 4.5 4.5
Vin (max) (V) 18 18
Number of Outputs 1 1
Vout (min) (V) 0.765;0.8 0.765;0.8
Vout (max) (V) 6.5 6.5
Output Adj. Method Resistor Resistor
Iout (max) (A) 2 2
Current Limit (typ) (A) 3.3 3.3
Freq (typ) (kHz) 500 500
Ext Sync No No
Ron_HS (typ) (mOhm) 163 163
Ron_LS (typ) (mOhm) 86 86
Iq (typ) (mA) 0.5 0.5
Features ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;Internal Compensation;OCP;OTP;OVP;PSM;Stable with Ceramic Capacitor;UVP ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;Force PWM;Internal Compensation;OCP;OTP;OVP;Stable with Ceramic Capacitor;UVP
Package Type TSOT-26(FC) TSOT-26(FC)
關鍵特性
  • 內部整合 163mΩ/86mΩ MOSFETs
  • 4.5V 至 18V 輸入電壓範圍
  • 500kHz 切換頻率
  • ACOT Control
  • 0.8V ±1.5% 回授參考電壓
  • 0.765V ±1.5% 回授參考電壓
  • 內部啟動到預偏置輸出
  • 簡便封裝 : TSOT-23-6
  • 輸入欠壓鎖定
  • 支援打嗝模式的過電流保護機制
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
RT6212AHGJ6FTSOT-26(FC)3,000 Request Digikey 5,706 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT6212AHRGJ6FTSOT-26(FC)3,000 Request Digikey 2,785 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT6212BHGJ6FTSOT-26(FC)3,000 Request Digikey 2,007 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
RT6212BHRGJ6FTSOT-26(FC)3,000 Request Digikey 2,953 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RT6212AHGJ6F Digikey 4 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
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