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RT6211A/RT6211B

1.5A, 18V, 500kHz, ACOT® 同步 Buck 轉換器

RT6211A/RT6211B
New

RT6211A/B 是輸入電壓範圍為 4.5V~18V、可輸出高達 1.5A 電流的全集成高效同步 Buck 轉換器，採用 ACOT 控制架構，具有改善了的瞬態回應特性，工作頻率基本固定。它具有逐週期電流限制保護以對抗輸出端短路，有軟啟動消除啟動過程中的衝擊電流，還有輸出欠壓保護、過流保護和熱關機保護特性。

應用

  • 機上盒
  • 可擕式 TV
  • AP 路由器
  • DSL Modem
  • LCD TV

主要規格

RT6211A RT6211B
Status Active Active
Vin (min) (V) 4.5 4.5
Vin (max) (V) 18 18
Number of Outputs 1 1
Vout (min) (V) 0.8 0.8
Vout (max) (V) 6.5 6.5
Output Adj. Method Resistor Resistor
Iout (max) (A) 1.5 1.5
Current Limit (typ) (A) 2.5 2.5
Freq (typ) (kHz) 520 520
Ext Sync No No
Ron_HS (typ) (mOhm) 230 230
Ron_LS (typ) (mOhm) 130 130
Iq (typ) (mA) 0.8 0.8
Features ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Internal Compensation;OCP;OTP;PSM;SCP;Stable with Ceramic Capacitor;UVP ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Force PWM;Internal Compensation;OCP;OTP;SCP;Stable with Ceramic Capacitor;UVP
Package Type SOT-26 SOT-26

關鍵特性

  • 集成 230mΩ/130mΩ MOSFET

  • 輸入電壓範圍：4.5V~18V

  • 500kHz 工作頻率

  • ACOT 控制架構

  • 0.8V ± 1.5% 參考電壓

  • 內建從預偏置輸出電壓中啟動功能

  • 緊湊的封裝：SOT-23-6

  • 上/下橋過流保護，打嗝模式

  • VOUT範圍：0.8V~6.5V

Application Notes

Datasheet

DS6211AB-07.pdf

Videos

如何使用簡單工具對電源轉換器的穩定性進行測試評估?

Datasheet

DS6211AB-07.pdf

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