[参考译文] TDA4VM：TDA4VM LP8764-Q1 BUCK3 电压

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Other Parts Discussed in Thread: LP8764-Q1, DRA821U

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https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1589303/tda4vm-tda4vm-lp8764-buck3-voltage

器件型号： TDA4VM
Thread 中讨论的其他器件： DRA821U

尊敬的 TI

我将使用 ti-processor-sdk-linux-j7200-evm-09_02_00_04

在 k3-j7200-sm-p0.dtsi 中、它将 LP8764-Q1 的 buck3 电压定义为 0.85V

  lp876441: pmic@4c {
    compatible = "ti,lp8764-q1";
    reg = <0x4c>;
    system-power-controller;
    interrupt-parent = <&wkup_gpio0>;
    interrupts = <84 IRQ_TYPE_EDGE_FALLING>;

    gpio-controller;
    #gpio-cells = <2>;

    buck1-supply = <&vsys_3v3>;
    buck2-supply = <&vsys_3v3>;
    buck3-supply = <&vsys_3v3>;
    buck4-supply = <&vsys_3v3>;

    regulators: regulators {
      buckb1: buck1 {
        regulator-name = "vdd_cpu_avs";
        regulator-min-microvolt = <600000>;
        regulator-max-microvolt = <900000>;
        regulator-always-on;
        regulator-boot-on;
      };

      buckb2: buck2 {
        regulator-name = "vdd_ram_0v85";
        regulator-min-microvolt = <850000>;
        regulator-max-microvolt = <850000>;
        regulator-boot-on;
        regulator-always-on;
      };

      buckb3: buck3 {
        regulator-name = "vdd_core_0v85";
        regulator-min-microvolt = <850000>;
        regulator-max-microvolt = <850000>;
        regulator-boot-on;
        regulator-always-on;
      };

在参考原理图中、buck3 与 VDD_CORE_0V8 连接、如下所示