AGREE

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RT6226A/RT6226B/RT6226C

集成3.3V/5V线性稳压器的23V, 6A同步Buck转换器

RT6226A/RT6226B/RT6226C
New

RT6226A/B/C是采用改进型固定导通时间 (ACOT®) 控制架构的同步Buck转换器，具有非常快速的瞬态响应能力。RT6226A/B的输入电压范围是4.5V至23V，RT6226C的输入电压范围是5.1V至23V，RT6226A的输出电压可在0.6V至5.1V间进行调节。

应用

  • 工商业低功率系统
  • 计算机外设
  • 液晶显示器和电视机
  • 节能电器
  • 高性能DSP、FPGA、ASIC负载点调节器

主要规格

RT6226A RT6226B RT6226C
Status Active Active Active
Vin (min) (V) 4.5 4.5 5.1
Vin (max) (V) 23 23 23
Number of Outputs 1 1 1
Vout (min) (V) 0.6 3.267 5.049
Vout (max) (V) 5.1 3.333 5.151
Output Adj. Method Resistor Fixed Fixed
Iout (max) (A) 6 6 6
Current Limit (typ) (A) 7.2 7.2 8.4
Freq (typ) (kHz) 500 500 750
Ext Sync No No No
Ron_HS (typ) (mOhm) 30 30 30
Ron_LS (typ) (mOhm) 15 15 15
Iq (typ) (mA) 0.1 0.1 0.1
Features ACOT Control;Adjustable Current Limit;Built-in Bootstrap Switch;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;Fast Transient Response;OCP;OTP;OVP;PSM;Power Good;Stable with Ceramic Capacitor;UVP;Ultrasonic Mode Control ACOT Control;Adjustable Current Limit;Built-in Bootstrap Switch;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;Fast Transient Response;Internal Compensation;OCP;OTP;OVP;PSM;Power Good;Stable with Ceramic Capacitor;UVP;Ultrasonic Mode Control ACOT Control;Built-in Bootstrap Switch;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;Fast Transient Response;Internal Compensation;OCP;OTP;OVP;PSM;Power Good;Stable with Ceramic Capacitor;UVP;Ultrasonic Mode Control
Package Type UQFN3x3-12H(FC) UQFN3x3-12H(FC) UQFN3x3-12H(FC)

关键特性

  • 输入电压范围：4.5V~23V(RT6226A/B)，5.1V~23V(RT6226C)

  • 负载能力：6A

  • 采用ACOT®控制架构，瞬态响应速度快，容许使用陶瓷输出电容

  • 固定工作频率：500kHz(RT6226A/B)，750kHz(RT6226C)

  • 集成30mΩ/15mΩ MOSFET功率开关

  • RT6226A输出电压可调范围：0.6V~5.1V

  • RT6226C集成负载能力100mA的3.3V线性稳压器

  • 预偏置软起动

  • 逐周期电流限制保护

  • 输入欠压锁定保护

  • 过热关机保护

  • 输出过压/欠压保护

  • 支持超声工作模式

  • 300kHz时钟信号输出供外部电荷泵电路使用

Application Notes

Datasheet

DS6226ABC-03.pdf

Datasheet

DS6226ABC-03.pdf

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