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LP8733 датащи(PDF) 34 Page - Texas Instruments

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номер детали LP8733
подробное описание детали  LP8733xx-Q1 Dual High-Current Buck Converter and Dual Linear Regulator
PDF  85 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

LP8733 датащи(HTML) 34 Page - Texas Instruments

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Time
Voltage
VOUTx
350mV
Time
Current
ILIMx
INT_BUCK(BUCKx_ILIM_INT)
20Ps
nINT
BUCK_STAT(BUCKx_STAT)
1
Resistive
pull-down
1
Regulator disabled
by digital
Host clearing the interrupt by writing to flags
New startup if
enable is valid
1ms
0
1
0
0
INT_BUCK(BUCKx_SC_INT)
0
1
0
34
LP8733-Q1
SNVSB64 – SEPTEMBER 2018
www.ti.com
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Copyright © 2018, Texas Instruments Incorporated
Figure 20. Buck Regulator Overload Situation
The LDO regulators include also current limit circuitry. If the load current is increased so that the current limit is
triggered, the regulator limits the output current to the threshold level. The voltage may decrease if the load
current is higher than the current limit. If the current regulation continues for 20 µs, the LP8733xx-Q1 device sets
the LDOx_ILIM_INT bit in INT_LDO register and pulls the nINT pin low. The host processor can read
LDOx_ILIM_STAT bits in LDO_STAT register to see if the regulator is still in current regulation mode and the
interrupt is cleared by writing 1 to LDOx_ILIM_INT bit. The current limit interrupt can be masked by setting
LDOx_ILIM_MASK bit in LDO_MASK register to 1. The LDO overload situation is shown in Figure 21.



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