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The RT8126A/B/C PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. <p align="justify">The constant on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns &quot;instant-on&quot; response to load transients while maintaining a relatively constant switching frequency. </p><p align="justify">The RT8126A/B/C achieves high efficiency at a reduced cost by eliminating the current sense resistor found in traditional current mode PWMs. Efficiency is further enhanced by its ability to drive very large synchronous rectifier MOSFETs. To eliminate noise in audio applications, the RT8126B provides Audio-Skipping mode, which maintains the switching frequency above 25kHz. The buck conversion allows this device to directly step down high voltage batteries at the highest possible efficiency. The RT8126A/B/C is intended for CPU core, chipset, DRAM, or other low voltage supplies as low as 0.6V.</p>
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  • VCC 工作电压范围：4.5V~13.2V
  • VOUT 电压范围：0.6V~5V
  • 功率级输入电压范围：2.5V~24V
  • 关机电流 <10μA
  • 300kHz 固定工作频率
  • 支持二极管仿真模式（RT8126A）
  • 支持音频避开模式（RT8126B）
  • VIN 检测
  • LGATE 过流设定（LGOCS）
  • Power Good 指示
  • 内嵌自举开关
  • 下桥电流检测用于电流限制
  • 1% 精度 VREF=0.6V
  • 使能控制
  • 查分输出检测
  • OVP/UVP/OTP/Pre-OVP/OCP
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芯片组/RAM 电源 通用大功率 DC/DC 调节器
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