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TPS54260QDGQRQ1 Fiches technique(PDF) 4 Page - Texas Instruments

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No de pièce TPS54260QDGQRQ1
Description  3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE
Download  50 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54260QDGQRQ1 Fiches technique(HTML) 4 Page - Texas Instruments

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TPS54260-Q1
SLVSAH8C – DECEMBER 2010 – REVISED MAY 2013
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
TJ = -40 to 150°C, VIN = 3.5 to 60V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Error amplifier bandwidth
2700
kHz
Error amplifier source/sink
V(COMP) = 1 V, 100 mV overdrive
±27
μA
COMP to switch current
10.5
A/V
transconductance
CURRENT LIMIT
Current limit threshold
VIN = 12 V, TJ = 25°C
3.5
6.1
A
THERMAL SHUTDOWN
Thermal shutdown
182
°C
TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK PIN)
Switching Frequency Range using
100
2500
kHz
RT mode
fSW
Switching frequency
RT = 200 kΩ
450
581
720
kHz
Switching Frequency Range using
300
2200
kHz
CLK mode
Minimum CLK input pulse width
40
ns
RT/CLK high threshold
1.9
2.2
V
RT/CLK low threshold
0.5
0.7
V
RT/CLK falling edge to PH rising
Measured at 500 kHz with RT resistor in series
60
ns
edge delay
PLL lock in time
Measured at 500 kHz
100
μs
SLOW START AND TRACKING (SS/TR)
Charge current
VSS/TR = 0.4 V
2
μA
SS/TR-to-VSENSE matching
VSS/TR = 0.4 V
45
mV
SS/TR-to-reference crossover
98% nominal
1.15
V
SS/TR discharge current (overload)
VSENSE = 0 V, V(SS/TR) = 0.4 V
382
μA
SS/TR discharge voltage
VSENSE = 0 V
54
mV
POWER GOOD (PWRGD PIN)
VSENSE falling
92%
VSENSE rising
94%
VVSENSE
VSENSE threshold
VSENSE rising
109%
VSENSE falling
107%
Hysteresis
VSENSE falling
2%
Output high leakage
VSENSE = VREF, V(PWRGD) = 5.5 V, 25°C
10
nA
On resistance
I(PWRGD) = 3 mA, VSENSE < 0.79 V
50
Minimum VIN for defined output
V(PWRGD) < 0.5 V, II(PWRGD) = 100
μA
0.95
1.5
V
4
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Product Folder Links: TPS54260-Q1


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