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RT6234A/RT6234B

3A, 18V, 500kHz, ACOT® 降压型转换器

RT6234A/RT6234B
New

RT6234A/B 为高效率的DC/DC单片式同步整流转换器，输入电压范围从4.5V至18V，输出电流至3A。RT6234A/B的采用的ACOT架构可增进瞬时响应的表现并固定操作频率。逐周期形式的限流机制可在输出短路时提供电路保护作用，缓启动机制则可消除启动瞬间的输入电流涌浪的问题。此外RT6234A/B提供输出低电压保护与过热关机保护功能。

应用

  • 机顶盒
  • 可携式电视
  • 路由器
  • DSL 解调器
  • LCD 、电视

主要规格

RT6234A RT6234B
Status EOL EOL
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) 3 3
Current Limit (typ) (A) 4.8 4.8
Freq (typ) (kHz) 500 500
Ext Sync No No
Ron_HS (typ) (mOhm) 130 130
Ron_LS (typ) (mOhm) 70 70
Iq (typ) (mA) 0.8 0.8
Features ACOT Control;Adjustable Soft-Start;COT Control;Cycle-by-Cycle Current Limit;Enable Input;Internal Compensation;OCP;OTP;PSM;Power Good ACOT Control;Adjustable Soft-Start;COT Control;Cycle-by-Cycle Current Limit;Enable Input;Internal Compensation;OCP;OTP;Power Good
Package Type WDFN2x3-8 WDFN2x3-8

关键特性

  • 内部整合 130mΩ/70mΩ MOSFETs

  • 4.5V 至 18V 输入电压范围

  • 500kHz 切换频率

  • ACOT Control

  • 0.8V ±2% 参考电压

  • 0.8V 至 6.5V 可调的输出电压

  • 单调性的启动至预偏压输出值

Application Notes

Videos

怎样使用简单工具对电源转换器的稳定性进行测试评估?

RT6234AHGQW
Package Type:WDFN2x3-8
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