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TPS54062 Fiches technique(PDF) 7 Page - Texas Instruments

No de pièce TPS54062
Description  4.7-V to 60-V Input, 50-mA Synchronous Step-Down Converter With Low IQ
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54062 Fiches technique(HTML) 7 Page - Texas Instruments

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TPS54062
www.ti.com
SLVSAV1D – MAY 2011 – REVISED JULY 2016
Product Folder Links: TPS54062
Submit Documentation Feedback
Copyright © 2011–2016, Texas Instruments Incorporated
Electrical Characteristics
(1) (continued)
TJ = –40°C to 125°C, VIN = 4.7 to 60 V (unless otherwise noted)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
THERMAL SHUTDOWN
Thermal shutdown
146
C
RT/CLK
Operating frequency using RT mode
100
400
kHz
Switching frequency
R(RT/CLK) = 510 kΩ
192
240
288
kHz
Minimum CLK pulse width
40
ns
RT/CLK voltage
R(RT/CLK) = 510 kΩ
0.53
V
RT/CLK high threshold
1.3
V
RT/CLK low threshold
0.5
V
RT/CLK falling edge to PH rising
edge delay
Measure at 240 kHz with RT resistor in series
100
200
ns
PLL lock in time
Measure at 240 kHz
100
µs
PLL frequency range
300
400
kHz
PH
Minimum On-time
Measured at 50% to 50% of VIN IOUT = 50 mA
120
ns
Dead time
VIN = 12V, IOUT = 50 mA, One transition
30
ns
BOOT
BOOT-PH regulation voltage
VIN = 12 V
5.7
V
BOOT-PH UVLO
2.9
V
INTERNAL SLOW-START TIME
Slow-start time
fSW = 240 kHz, RT = 510 kΩ, 10% to 90%
4.1
ms


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