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TPS65721 Datasheet(PDF) 13 Page - Texas Instruments

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Part # TPS65721
Description  PMU for Bluetooth Headsets
PDF  50 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65721 Datasheet(HTML) 13 Page - Texas Instruments

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I -OutputCurrent- A
O
V =3V
I
V =3.6V
I
V =4.2V
I
V =5V
I
V =2.5V
I
0.001
0.0001
0.00001
V
=2.05V
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I -OutputCurrent- A
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V =3V
I
V =3.6V
I
V =4.2V
I
V =5V
I
V =2.5V
I
V
=2.05V
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I -OutputCurrent- A
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V =3V
I
V =3.6V
I
V =4.5V
I
V =5V
I
V =2.5V
I
V
=2.05V
O
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I -OutputCurrent- A
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V =3V
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V =3.6V
I
V =4.2V
I
V =5V
I
V =2.5V
I
V
=2.05V
O
TPS65720
TPS65721
www.ti.com
SLVS979 – OCTOBER 2009
TYPICAL CHARACTERISTICS (continued)
FIGURE
Output voltage ripple in PWM mode; DCDC1
Scope plot: Vi = 3.6V
Figure 14
Vo = 2.05V;
Io = 60mA (PWM)
Startup DCDC1 and LDO1
Scope plot using TPS65720 (battery
Figure 15
powered) for
/PB_IN; Vo_DCDC1; Vo_LDO1
Load transient response LDO1
Scope plot; V = 1.85V; Vi = 2.05V
Figure 16
I = 50
μA to 60mA to 50 μA
Line transient response LDO1
Scope plot; Vo = 1.85V; Vi = 5V to 3.6V
Figure 17
to 5V
Kset vs Riset
Figure 18–Figure 21
Efficiency vs Lout for DCDC1=2.05V, LDO1=1.85V,
Figure 22
VinLDO=VDCDC1
TPS65720 Efficiency of DCDC1
TPS65720 Efficiency of DCDC1
vs
vs
Load Current; PWM Mode; inductor: LQM21P 3.3uH
Load Current; PFM Mode; inductor: LQM21P 3.3uH
Figure 1.
Figure 2.
TPS65720 Efficiency of DCDC1
TPS65720 Efficiency of DCDC1
vs
vs
Load Current; PWM Mode; inductor: MIPSA2520 2.2uH
Load Current; PFM Mode; inductor: MIPSA2520 2.2uH
Figure 3.
Figure 4.
Copyright © 2009, Texas Instruments Incorporated
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Product Folder Link(s): TPS65720 TPS65721



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