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LP8733-Q1 bảng dữ liệu(PDF) 25 Page - Texas Instruments

tên linh kiện LP8733-Q1
Giải thích chi tiết về linh kiện  LP8733xx-Q1 Dual High-Current Buck Converter and Dual Linear Regulator
PDF  86 Pages
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nhà sản xuất  TI2 [Texas Instruments]
Trang chủ  https://www.ti.com
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LP8733-Q1 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
Figure 7-7. 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 7-8.
www.ti.com
LP8733-Q1
SNVSB64A – JUNE 2019 – REVISED JUNE 2021
Copyright © 2022 Texas Instruments Incorporated
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