1 Linear Technology LTC3676 8-output regulators
2
3 Required properties:
4 - compatible: "lltc,ltc3676"
5 - reg: I2C slave address
6
7 Required child node:
8 - regulators: Contains eight regulator child n
9 ldo1, ldo2, ldo3, and ldo4, specifying the i
10 documented in Documentation/devicetree/bindi
11
12 Each regulator is defined using the standard b
13 nodes for sw1, sw2, sw3, sw4, ldo1, ldo2 and l
14 the resistor values of their external feedback
15
16 Required properties (not on ldo3):
17 - lltc,fb-voltage-divider: An array of two int
18 values R1 and R2 of the feedback voltage div
19
20 Regulators sw1, sw2, sw3, sw4 can regulate the
21 412.5mV to 800mV in 12.5 mV steps. The output
22 0.4125 * (1 + R1/R2) V and 0.8 * (1 + R1/R2) V
23
24 Regulators ldo1, ldo2, and ldo4 have a fixed 0
25 0.725 * (1 + R1/R2) V. The ldo3 regulator is f
26 regulator can not be disabled and thus should
27 property set.
28
29 Example:
30
31 ltc3676: pmic@3c {
32 compatible = "lltc,ltc3676";
33 reg = <0x3c>;
34
35 regulators {
36 sw1_reg: sw1 {
37 regulator-min-
38 regulator-max-
39 lltc,fb-voltag
40 regulator-ramp
41 regulator-boot
42 regulator-alwa
43 };
44
45 sw2_reg: sw2 {
46 regulator-min-
47 regulator-max-
48 lltc,fb-voltag
49 regulator-ramp
50 regulator-boot
51 regulator-alwa
52 };
53
54 sw3_reg: sw3 {
55 regulator-min-
56 regulator-max-
57 lltc,fb-voltag
58 regulator-ramp
59 regulator-boot
60 regulator-alwa
61 };
62
63 sw4_reg: sw4 {
64 regulator-min-
65 regulator-max-
66 lltc,fb-voltag
67 regulator-ramp
68 regulator-boot
69 regulator-alwa
70 };
71
72 ldo2_reg: ldo2 {
73 regulator-min-
74 regulator-max-
75 lltc,fb-voltag
76 regulator-boot
77 regulator-alwa
78 };
79
80 ldo3_reg: ldo3 {
81 regulator-min-
82 regulator-max-
83 regulator-boot
84 };
85
86 ldo4_reg: ldo4 {
87 regulator-min-
88 regulator-max-
89 lltc,fb-voltag
90 regulator-boot
91 regulator-alwa
92 };
93 };
94 };
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