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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LP8733 датащи(PDF) 25 Page - Texas Instruments |
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LP8733 датащи(HTML) 25 Page - Texas Instruments |
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25 / 86 page  Enable Time Voltage Resistive pull-down (if enabled) LDOx_VSET[4:0] INT_LDO(LDOx_PG_INT) nINT Host clears interrupts Powergood interrupts Powergood LDO_STAT(LDOx_PG_STAT) 0 0 1 Voltage decrease because of load LDO_STAT(LDOx_STAT) 0 0 1 0 1 1 0 0 1 0 1 0 LDO_MASK(LDOx_PGF_MASK) = 0 LDO_MASK(LDOx_PGR_MASK) = 0 1 0 25 LP8733 www.ti.com SNVSBK2 – SEPTEMBER 2019 Product Folder Links: LP8733 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Figure 14. LDO Regulator Enable and Disable The EN input pin has an integrated pulldown resistor. The pulldown resistor is controlled with the EN_PD bit in the CONFIG register. 7.3.5.2 Changing Output Voltage The output voltage of the regulator can be changed by writing to the BUCKx_VOUT and LDOx_VOUT register. The voltage change for the buck regulator is always slew-rate controlled, and the slew-rate is defined by the BUCKx_SLEW_RATE[2:0] bits in the BUCKx_CTRL_2 register. During voltage change, the forced PWM mode is used automatically. If the dual-phase operation is forced by the BUCK0_FPWM_MP bit in the BUCK0_CTRL_1 register, the regulator operates in dual-phase mode. If the dual-phase operation is not forced, the number of phases are added and shedded automatically to follow the required slew rate. When the programmed output voltage is achieved, the mode becomes the one defined by the load current, the BUCKx_FPWM bit in the BUCKx_CTRL_1 register, and the BUCK0_FPWM_MP bit. The voltage change and Power-Good interrupts are shown in Figure 15. |
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