JAJSEQ9E November 2013 – December 2017 TPS56520 , TPS56720 , TPS56920 , TPS56C20
PRODUCTION DATA.
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The lower 7 bits of the Output Voltage Register controls the VOUT of the TPS56X20. These bits are the 7-bit selector for one of the output voltages.
As previously mentioned, when the IC powers up, the startup and output voltage regulation conditions are set by the external resistor divider feedback to the VFB terminal, the condition of the EN terminal, and the capacitance on the SS terminal.
Bringing the EN terminal high (or setting the Enable bit in Control register 9 high) begins a soft-start ramp on the regulator.
After applying VIN, VREG5 will come into regulation and the I2C interface will active. The user can activate soft start and VOUT by bring the EN terminal high or programming the Enable bit in Control Register 9.
By default, the part will regulate VOUT using the external feedback resistors connected to the VFB terminal. The user can then program VOUT by writing any VOUT code. Alternatively, if the EN terminal is low, soft start and VOUT can be enabled by writing the desired VOUT code and programming the Enable bit to a one.
Code | Binary | VOUT | Code | Binary | VOUT | Code | Binary | VOUT | Code | Binary | VOUT |
---|---|---|---|---|---|---|---|---|---|---|---|
0 | 0000000 | 0.60 | 32 | 0100000 | 0.92 | 64 | 1000000 | 1.24 | 96 | 1100000 | 1.56 |
1 | 0000001 | 0.61 | 33 | 0100001 | 0.93 | 65 | 1000001 | 1.25 | 97 | 1100001 | 1.57 |
2 | 0000010 | 0.62 | 34 | 0100010 | 0.94 | 66 | 1000010 | 1.26 | 98 | 1100010 | 1.58 |
3 | 0000011 | 0.63 | 35 | 0100011 | 0.95 | 67 | 1000011 | 1.27 | 99 | 1100011 | 1.59 |
4 | 0000100 | 0.64 | 36 | 0100100 | 0.96 | 68 | 1000100 | 1.28 | 100 | 1100100 | 1.60 |
5 | 0000101 | 0.65 | 37 | 0100101 | 0.97 | 69 | 1000101 | 1.29 | 101 | 1100101 | 1.61 |
6 | 0000110 | 0.66 | 38 | 0100110 | 0.98 | 70 | 1000110 | 1.30 | 102 | 1100110 | 1.62 |
7 | 0000111 | 0.67 | 39 | 0100111 | 0.99 | 71 | 1000111 | 1.31 | 103 | 1100111 | 1.63 |
8 | 0001000 | 0.68 | 40 | 0101000 | 1.00 | 72 | 1001000 | 1.32 | 104 | 1101000 | 1.64 |
9 | 0001001 | 0.69 | 41 | 0101001 | 1.01 | 73 | 1001001 | 1.33 | 105 | 1101001 | 1.65 |
10 | 0001010 | 0.70 | 42 | 0101010 | 1.02 | 74 | 1001010 | 1.34 | 106 | 1101010 | 1.66 |
11 | 0001011 | 0.71 | 43 | 0101011 | 1.03 | 75 | 1001011 | 1.35 | 107 | 1101011 | 1.67 |
12 | 0001100 | 0.72 | 44 | 0101100 | 1.04 | 76 | 1001100 | 1.36 | 108 | 1101100 | 1.68 |
13 | 0001101 | 0.73 | 45 | 0101101 | 1.05 | 77 | 1001101 | 1.37 | 109 | 1101101 | 1.69 |
14 | 0001110 | 0.74 | 46 | 0101110 | 1.06 | 78 | 1001110 | 1.38 | 110 | 1101110 | 1.70 |
15 | 0001111 | 0.75 | 47 | 0101111 | 1.07 | 79 | 1001111 | 1.39 | 111 | 1101111 | 1.71 |
16 | 0010000 | 0.76 | 48 | 0110000 | 1.08 | 80 | 1010000 | 1.40 | 112 | 1110000 | 1.72 |
17 | 0010001 | 0.77 | 49 | 0110001 | 1.09 | 81 | 1010001 | 1.41 | 113 | 1110001 | 1.73 |
18 | 0010010 | 0.78 | 50 | 0110010 | 1.10 | 82 | 1010010 | 1.42 | 114 | 1110010 | 1.74 |
19 | 0010011 | 0.79 | 51 | 0110011 | 1.11 | 83 | 1010011 | 1.43 | 115 | 1110011 | 1.75 |
20 | 0010100 | 0.80 | 52 | 0110100 | 1.12 | 84 | 1010100 | 1.44 | 116 | 1110100 | 1.76 |
21 | 0010101 | 0.81 | 53 | 0110101 | 1.13 | 85 | 1010101 | 1.45 | 117 | 1110101 | 1.77 |
22 | 0010110 | 0.82 | 54 | 0110110 | 1.14 | 86 | 1010110 | 1.46 | 118 | 1110110 | 1.78 |
23 | 0010111 | 0.83 | 55 | 0110111 | 1.15 | 87 | 1010111 | 1.47 | 119 | 1110111 | 1.79 |
24 | 0011000 | 0.84 | 56 | 0111000 | 1.16 | 88 | 1011000 | 1.48 | 120 | 1111000 | 1.80 |
25 | 0011001 | 0.85 | 57 | 0111001 | 1.17 | 89 | 1011001 | 1.49 | 121 | 1111001 | 1.81 |
26 | 0011010 | 0.86 | 58 | 0111010 | 1.18 | 90 | 1011010 | 1.50 | 122 | 1111010 | 1.82 |
27 | 0011011 | 0.87 | 59 | 0111011 | 1.19 | 91 | 1011011 | 1.51 | 123 | 1111011 | 1.83 |
28 | 0011100 | 0.88 | 60 | 0111100 | 1.20 | 92 | 1011100 | 1.52 | 124 | 1111100 | 1.84 |
29 | 0011101 | 0.89 | 61 | 0111101 | 1.21 | 93 | 1011101 | 1.53 | 125 | 1111101 | 1.85 |
30 | 0011110 | 0.90 | 62 | 0111110 | 1.22 | 94 | 1011110 | 1.54 | 126 | 1111110 | 1.86 |
31 | 0011111 | 0.91 | 63 | 0111111 | 1.23 | 95 | 1011111 | 1.55 | 127 | 1111111 | 1.87 |