Datasheet

VCC/VINDCDC1
DCDC1_EN
VDCDC1
1.20V 1.20V 1.20V
VCC/VINDCDC1
DCDC1_EN
I2CBus
DEF_CORE
VDCDC1
??
0x1F
0x11 0x10
??
0x1E0x1F 0x10
1.20V
1.225V
1.20V
PullDCDC1_ENHigh
WriteDEF_COREto0x10
WriteCON_CTRL [7]to1
WriteDEF_COREto0x10
PullDCDC1_ENHigh
VCC/VINDCDC1
DCDC1_EN
HOT_RESET
VDCDC1
1.225V
1.20V
1.225V
1.20V
TPS65023, TPS65023B
SLVS670J –JUNE 2006– REVISED SEPTEMBER 2011 www.ti.com
Figure 38. Workaround 1
Workaround 2: Write the correct voltage to the DEF_CORE register via I
2
C. This can be done before or after the
converter is enabled. If written before the enable, the only bit changed is DEF_CORE[0]. The voltage will be
1.2V, however, when the enable is pulled high (Figure 39).
Figure 39. Workaround 2
Workaround 3: Generate a HOT_RESET after enabling DCDC1 (Figure 40)
Figure 40. Workaround 3
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