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TPS54110-Q1 Datasheet(PDF) 15 Page - Texas Instruments

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Part No. TPS54110-Q1
Description  3-V TO 6-V INPUT, 1.5-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT)
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TPS54110-Q1 Datasheet(HTML) 15 Page - Texas Instruments

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TPS54110−Q1
SLVS837 − JULY 2008
www.ti.com
15
All performance data shown for VI = 5 V, VO = 1.5 V, FS = 700 kHz, TA = 25_C, Figure 20
Figure 21
50
55
60
65
70
75
80
85
90
95
100
0
0.25
0.5
0.75
1
1.25
1.5
IO − Output Current − A
EFFICIENCY
vs
OUTPUT CURRENT
VI = 3.3 V
VI = 5 V
Figure 22
0.2
0.4
0.6
0.8
1.2
0
0.25
0.5
0.75
1
1.25
1.5
POWER DISSIPATION
vs
OUTPUT CURRENT
IO − Output Current − A
0
1
VI = 3.3 V
VI = 5 V
Figure 23
−0.1
−0.08
−0.06
−0.04
−0.02
0
0.02
0.04
0.06
0.08
0.1
0
0.25
0.5
0.75
1
1.25
1.5
LOAD REGULATION
vs
OUTPUT CURRENT
IO − Output Current − A
VI = 3.3 V
VI = 5 V
Figure 24
−0.02
−0.015
−0.01
−0.005
0.005
0.01
0.015
0.02
3
3.5
4
4.5
5
5.5
6
0
IO = 0 A
IO = 0.75 A
IO = 1.5 A
VI − Input Voltage − V
LINE REGULATION
vs
INPUT VOLTAGE
Figure 25
Time = 500 ns/div
INPUT VOLTAGE RIPPLE
VI = 50 mV/div (AC)
V(phase)= 2 V/div
Figure 26
VO = 20 mV/div (AC)
V(phase)= 2 V/div
Time = 500 ns/div
OUTPUT VOLTAGE RIPPLE
Figure 27
VO= 20 mV/div (AC)
IO= 1 V/div
Time = 200
ms/div
OUTPUT VOLTAGE TRANSIENT
RESPONSE
Figure 28
VI = 1 V/div
VO = 500 mV/div
Time = 5 ms/div
START UP WAVEFORM


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