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TPS54372 Fiches technique(PDF) 11 Page - Texas Instruments

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No de pièce TPS54372
Description  3-A OUTPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETs
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54372 Fiches technique(HTML) 11 Page - Texas Instruments

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t − Time − 1
µs/div
fs = 700 kHz,
IO = 3 A,
VI = 5 V,
VO = 1.25 V
1.247
1.248
1.249
1.25
1.251
1.252
1.253
3
4
5
6
IO = 3 A
VI − Input Voltage − V
IO = 0 A
fs = 700 kHz,
TA = 25°C,
VO = 1.25 V
IO = 1.5 A
t − Time − 25 ms/div
VI = 5 V,
VO = 1.25 V
0 A to
2.25 A
VI = 5 V,
VO = 1.25 V
t −Time − 2.5 ms/div
t − Time − 100
µs/div
VI = 5 V,
VO = 1.25 V
−1.5 A to 1.5 A
25
35
45
55
65
75
85
95
105
115
125
0
1
2
3
4
IL − Load Current − A
Safe Operating Area
VI = 3.3 V
VI = 5 V
TA = 25°C,
VO = 1.25 V
(See Note)
TPS54372
SLVS430D – JUNE 2002 – REVISED FEBRUARY 2005
PERFORMANCE GRAPHS (continued)
LINE REGULATION
vs
INPUT VOLTAGE
OUTPUT RIPPLE VOLTAGE
Figure 12.
Figure 13.
TRANSIENT RESPONSE
SLOW-START TIMING
Figure 14.
Figure 15.
AMBIENT TEMPERATURE
SOURCE-SINK
vs
TRANSIENT RESPONSE
LOAD CURRENT(1)
Figure 16.
(1)
Safe operating area is applicable to the test
board conditions listed in the dissipation
rating table section of this data sheet.
Figure 17.
11


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