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TPS65140 Datasheet(PDF) 9 Page - Texas Instruments

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Part # TPS65140
Description  TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND POWER GOOD
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65140 Datasheet(HTML) 9 Page - Texas Instruments

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VSW
10 V/div
VO
50 mV/div
VI = 3.3 V
VO = 10 V/300 mA
IL
1 A/div
250 ns/div
100
150
200
250
300
350
−40
−20
0
20
40
60
80
100
TA − Free-Air Temperature − °C
Vo1 = 5 V
Vo1 = 15 V
Vo1 = 10 V
1.3
1.4
1.5
1.6
1.7
1.8
1.9
−40
−20
0
20
40
60
80
100
TA − Free-Air Temperature − °C
VI = 2.7 V
VI = 3.3 V
VI = 5.8 V
Vo1
200 mV/div
VI = 3.3 V
Vo1 = 10 V, CO= 22 µF
IO
50 mA to 250 mA
100
µs/div
Vo1
100 mV/div
VI = 3.3 V
Vo1 = 10 V, CO= 2*22 µF
IO
50 mA to 250 mA
100
µs/div
VSW
10 V/div
VO
50 mV/div
VI = 3.3 V
VO = 10 V/10 mA
IL
500 mA/div
250 ns/div
Vo1
5 V/div
VI = 3.3 V
VO = 10 V,
IO = 300 mA
500
µs/div
II
500
mA/div
Vo1
5 V/div
VI = 3.3 V
VO = 10 V,
500
µs/div
Vo2
5 V/div
Vo3
10 V/div
0
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
8.8
9.8
10.8
11.8
12.8
13.8
14.8
Vo1 − Output Voltage − V
Vo2 = −8 V
TA = −40°C
TA = 25°C
TA = 85°C
TPS65140
TPS65145
SLVS497B – SEPTEMBER 2003 – REVISED MARCH 2004
TYPICAL CHARACTERISTICS (continued)
SWITCHING FREQUENCY
rDS(on) N-CHANNEL MAIN SWITCH
vs
vs
PWM OPERATION CONTINUOUS
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
MODE
Figure 4.
Figure 5.
Figure 6.
PWM OPERATION AT LIGHT LOAD
LOAD TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
Figure 7.
Figure 8.
Figure 9.
POWER-UP SEQUENCING
SOFT START Vo1
Vo2 MAXIMUM LOAD CURRENT
Figure 10.
Figure 11.
Figure 12.
9


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