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TPS54372-Q1 Datasheet(PDF) 9 Page - Texas Instruments

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No. de pieza TPS54372-Q1
Descripción Electrónicos  3-A OUTPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETs
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54372-Q1 Datasheet(HTML) 9 Page - Texas Instruments

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TPS54372-Q1
SGLS267E − OCTOBER 2004 − REVISED JUNE 2008
www.ti.com
9
PERFORMANCE GRAPHS
Figure 10
50
55
60
65
70
75
80
85
90
95
100
01
23
4
EFFICIENCY
vs
OUTPUT CURRENT
IO − Output Current − A
fs = 700 kHz,
VI = 5 V,
VO = 1.25 V
Figure 11
1.245
1.247
1.249
1.251
1.253
1.255
01
23
4
LOAD REGULATION
vs
OUTPUT CURRENT
IO − Output Current − A
fs = 700 kHz,
TA = 25°C,
VI = 5 V,
VO = 1.25 V
Figure 12
1.247
1.248
1.249
1.25
1.251
1.252
1.253
3
456
IO = 3 A
VI − Input Voltage − V
LINE REGULATION
vs
INPUT VOLTAGE
IO = 0 A
fs = 700 kHz,
TA = 25°C,
VO = 1.25 V
IO = 1.5 A
Figure 13
t − Time − 1
µs/div
OUTPUT RIPPLE VOLTAGE
fs = 700 kHz,
IO = 3 A,
VI = 5 V,
VO = 1.25 V
Figure 14
t − Time − 25 ms/div
TRANSIENT RESPONSE
VI = 5 V,
VO = 1.25 V
0 A to
2.25 A
Figure 15
VI = 5 V,
VO = 1.25 V
SLOW-START TIMING
t −Time − 2.5 ms/div
25
35
45
55
65
75
85
95
105
115
125
01
23
4
AMBIENT TEMPERATURE
vs
LOAD CURRENT
IL − Load Current − A
Safe Operating Area(1)
(1) Safe operating area is applicable to the test board conditions listed
in the dissipation rating table section of this data sheet.
Figure 16
VI = 3.3 V
VI = 5 V
TA = 25°C,
VO = 1.25 V
t − Time − 100
µs/div
SOURCE-SINK TRANSIENT RESPONSE
VI = 5 V,
VO = 1.25 V
−1.5 A to 1.5 A
Figure 17


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