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LP8733 bảng dữ liệu(PDF) 25 Page - Texas Instruments

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tên linh kiện LP8733
Giải thích chi tiết về linh kiện  LP8733xx-Q1 Dual High-Current Buck Converter and Dual Linear Regulator
PDF  85 Pages
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nhà sản xuất  TI [Texas Instruments]
Trang chủ  http://www.ti.com
Logo TI - Texas Instruments

LP8733 bảng dữ liệu(HTML) 25 Page - Texas Instruments

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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-Q1
www.ti.com
SNVSB64 – SEPTEMBER 2018
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Copyright © 2018, Texas Instruments Incorporated
Figure 14. LDO Regulator Enable and Disable
The EN input pin have an integrated pulldown resistor. The pulldown resistor is controlled with EN_PD bit in
CONFIG register.
7.3.5.2 Changing Output Voltage
The output voltage of the regulator can be changed by writing to the BUCKx_VOUT / LDOx_VOUT register. The
voltage change for buck regulator is always slew-rate controlled, and the slew-rate is defined by the
BUCKx_SLEW_RATE[2:0] bits in 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 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 load current, and the BUCKx_FPWM bit in
BUCKx_CTRL_1 register and by BUCK0_FPWM_MP bit.
The voltage change and Power-Good interrupts are shown in Figure 15.



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