AGREE

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RT6256B/RT6256C

集成3.3V/5V线性稳压器的23V, 6A同步Buck转换器

RT6256B/RT6256C
New

RT6256B/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速度。RT6256B的工作电压范围是4.5V至23V，RT6256C的工作电压范围是5.5V至23V。

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

RT6256B RT6256C
Status Active Active
Vin (min) (V) 4.5 5.1
Vin (max) (V) 23 23
Number of Outputs 1 1
Vout (min) (V) 3.267 5.049
Vout (max) (V) 3.333 5.151
Output Adj. Method Fixed Fixed
Iout (max) (A) 6 6
Current Limit (typ) (A) 8.4 8.4
Freq (typ) (kHz) 500 750
Ext Sync No No
Ron_HS (typ) (mOhm) 30 30
Ron_LS (typ) (mOhm) 15 15
Iq (typ) (mA) 0.1 0.1
Features ACOT Control;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;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
Package Type UQFN3x3-12H(FC) UQFN3x3-12H(FC)

关键特性

  • 输入电压范围：4.5V~23V(RT6256B)，5.1V~23V(RT6256C)

  • 负载能力：6A

  • ACOT™控制架构，瞬态响应速度快，容许使用陶瓷电容为输出电容

  • 固定工作频率：750kHz(RT6256C)，500kHz(RT6256B)

  • 集成30mΩ/15mΩ功率开关

  • 集成100mA负载能力3.3V(RT6256B)/5V(RT6256C)线性稳压器

  • 软起动设计

  • 逐周期过流限制保护

  • 输入欠压锁定保护

  • 过热关机保护

  • 输出过压、欠压保护

  • 轻载超声工作模式

Datasheet

DS6256BC-03.pdf

Datasheet

DS6256BC-03.pdf

RT6256BGQUF
Package Type:UQFN3x3-12H(FC)
样品 购买
RT6256CGQUF
Package Type:UQFN3x3-12H(FC)
样品 购买
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