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LP8733 데이터시트(PDF) 34 Page - Texas Instruments

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부품명 LP8733
상세설명  LP8733xx Dual High-Current Buck Converter and Dual Linear Regulator
PDF  86 Pages
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

LP8733 데이터시트(HTML) 34 Page - Texas Instruments

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Time
Voltage
VOUTx
350 mV
Time
Current
ILIMx
INT_BUCK(BUCKx_ILIM_INT)
20 µs
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
1 ms
0
1
0
0
INT_BUCK(BUCKx_SC_INT)
0
1
0
34
LP8733
SNVSBK2 – SEPTEMBER 2019
www.ti.com
Product Folder Links: LP8733
Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
Figure 20. Buck Regulator Overload Situation
The LDO regulators also include 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 device sets the
LDOx_ILIM_INT bit in the INT_LDO register and pulls the nINT pin low. The host processor can read the
LDOx_ILIM_STAT bits in the LDO_STAT register to see if the regulator is still in current regulation mode and the
interrupt is cleared by writing 1 to the LDOx_ILIM_INT bit. The current limit interrupt can be masked by setting
the LDOx_ILIM_MASK bit in the LDO_MASK register to 1. The LDO overload situation is shown in Figure 21.



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