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TPS51221 Datasheet(PDF) 17 Page - Texas Instruments

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Part # TPS51221
Description  Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller
PDF  36 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS51221 Datasheet(HTML) 17 Page - Texas Instruments

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t-Time-100 ms/div
IIND(5 A/div)
VO1(100mV/div)
IO1(5 A/div)
V I N = 1 2 V, A u t o - s k i p
t-Time-100 ms/div
IIND(5 A/div)
VO2(100mV/div)
IO2(5 A/div)
VIN=12V, Auto-skip
-80
-60
-40
-20
0
20
40
60
80
100
1K
10K
100K
1M
f-Frequency-kHz
-180
-135
-90
-45
0
45
90
135
180
Gain
Phase
VIN=12V
Currentmode
-80
-60
-40
-20
0
20
40
60
80
100
1K
10K
100K
1M
f-Frequency-kHz
-180
-135
-90
-45
0
45
90
135
180
Gain
Phase
VIN=12V
Currentmode
TPS51221
SLVS786 – NOVEMBER 2007
TYPICAL CHARACTERISTICS (continued)
5.0-V LOAD TRANSIENT RESPONSSE
3.3-V LOAD TRANSIENT RESPONSSE
Figure 33.
Figure 34.
5.0-V BODE-PLOT GAIN AND PHASE
3.3-V BODE-PLOT GAIN AND PHASE
vs
vs
FREQUENCY
FREQUENCY
Figure 35.
Figure 36.
Copyright © 2007, Texas Instruments Incorporated
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