The ISL95838 Pulse Width Modulation (PWM) controller IC provides a complete solution for IMVP-7/VR12™ compliant microprocessor and graphic processor core power supplies. It provides the control and protection for two Voltage Regulators (VRs). The first VR, typical for Vcore, incorporates 2 integrated drivers and can operate in 3-, 2- or 1-phase configurations. The second VR, typical for Graphics, can operate in 2- or 1-phase configurations. The two VRs share a serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with the two-chip approach. Both VRs utilize Renesas' Robust Ripple Regulator R3 Technology™. The R3 modulator has numerous advantages compared to traditional modulators, including faster transient response, variable switching frequency during load transients, and improved light load efficiency due to its ability to automatically change switching frequency. The ISL95838 has several other key features. Both outputs support either DCR current sensing with a single NTC thermistor for DCR temperature compensation, or more precise resistor current sensing if desired. Both outputs come with remote voltage sense, programmable VBOOT voltage, IMAX, and switching frequency, adjustable overcurrent protection and separate Power-Good signals.
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类型 | 文档标题 | 日期 |
数据手册 - 简易格式 | PDF 196 KB | |
End Of Life Notice | PDF 1.17 MB | |
产品变更通告 | PDF 326 KB | |
数据手册 | PDF 2.20 MB | |
产品变更通告 | PDF 183 KB | |
产品变更通告 | PDF 173 KB | |
产品变更通告 | PDF 82 KB | |
应用文档 | PDF 509 KB | |
应用文档 | PDF 397 KB | |
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