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RT3662AM

AMD SVI2移动CPU内核电源用双输出PWM控制器

RT3662AM
New

RT3662AM是集成了3组MOSFET驱动器的双输出PWM控制器，它符合AMD SVI2电压调节器规范，可为CPU内核和北桥部分供电。它采用定电流纹波固定导通时间(Constant Current Ripple Constant On-Time, CCRCOT）及立錡专有的G-NAVP控制架构，易于设定以满足AMD AVP(Adaptive Voltage Positioning)的需求，简单设定误差放大器的直流增益即可获得所需电压随载下降的参数。借助适当的补偿，负载瞬态响应特性也能对AVP性能进行优化。它还能通过相互之间的接口发送VOTF完成信号，将VDD/VDDNB电压和电流数据编码以后进行上报。在轻载条件下，RT3662AM可进入二极管仿真模式以优化效率表现。其电流增益可通过引脚进行调节，还具有Power Good指示、温度指示及各种保护性特性如过流保护、过压及欠压保护等。

应用

  • AMD SVI2移动CPU
  • 笔记本电脑

主要规格

RT3662AM
Status Active
VID Table Support SVI2
Number of Phases 1;2
Vcc (typ) (V) 5
Vin (min) (V) 4.5
Vin (max) (V) 24
Accuracy (Vout>=1V) (+/- %) 0.5
Freq (typ) (kHz) 400
Built-in DAC Generator Yes
Number of MOSFET Drivers 1;2
Features Adjustable Frequency;Built-in Bootstrap Switch;DCR Current Sense;Diode Emulation Mode;Droop Control;Enable Input;Fast Transient Response;G-NAVP Control;OCP;OVP;Power Good;SCP;UVP
Package Type WQFN5x5-40

关键特性

  • 2/1相（VDD）+1/0相（VDDNB） PWM控制器

  • 集成2组MOSFET驱动器

  • G-NAVP™控制架构

  • 支持动态负载线和0负载线

  • 轻载二极管仿真模式

  • SVI2接口，兼容AMD电源管理协议

  • 电流增益可调

  • DVID加强

  • 0.5% DAC 精度

  • 远程差分电压检测

  • 集成ADC实现参数设定、温度指示和输出电压、电流申报

  • 快速瞬态响应

  • Power Good指示

  • 温度指示

  • OVP/UVP/UVLO

  • 过流保护

Datasheet

DS3662AM-00.pdf

Datasheet

DS3662AM-00.pdf

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