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TPS543B20 Datasheet(PDF) 8 Page - Texas Instruments

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Part # TPS543B20
Description  4 Vin to 19 Vin, 25-A Stackable, Synchronous Step-down SWIFT Converter with Adaptive Internal Compensation
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS543B20 Datasheet(HTML) 8 Page - Texas Instruments

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TPS543B20
SLUSCR1 – MAY 2017
www.ti.com
Product Folder Links: TPS543B20
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Copyright © 2017, Texas Instruments Incorporated
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SOFT START
tSS
Soft-Start time
VO rising from 0 V
to 95% of final set
point
RSS = 0 kΩ
0.5
ms
RSS = 8.66 kΩ
1
RSS = 15.4 kΩ
2
RSS = Open
4
RSS = 23.7 kΩ
5
RSS = 34.8 kΩ
8
RSS = 51.1 kΩ
12
RSS = 78.7 kΩ
16
RSS = 121 kΩ
24
RSS = 187 kΩ
32
POWER ON DELAY
tPODLY
Power-on delay time
Delay from enable to switching
512
µs
PGOOD COMPARATOR
VPG(thresh)
OV warning threshold on RSP
pin, PGOOD fault threshold on
rising
VREF=600 mV
108
112
116
%VREF
UV warning threshold on RSP
pin, PGOOD fault threshold on
falling
VREF=600 mV
84
88
92
VPGD(rise)
PGOOD threshold on rising and
UV warning threshold de-
assertion threshold at RSP pin
VREF=600 mV
95
%VREF
VPGD(fall)
PGOOD threshold on falling and
OV warning threshold de-
assertion threshold at RSP pin
VREF=600 mV
105
%VREF
RPGD
PGOOD pulldown resistance
IPGOOD = 5 mA, VRSP=0V
30
45
60
Ω
tPGDLY
PGOOD delay time
Delay for PGOOD going in
1.024
ms
Delay for PGOOD coming out
2
µs
VPGD(OL)
PGOOD output low level voltage
at no supply voltage
VDD=0, IPGOOD = 80 µA
0.8
V
IPGLK
PGOOD leakage current
VPGOOD = 5.0 V
15
µA


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