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TPS65022 Datasheet(PDF) 37 Page - Texas Instruments

Part # TPS65022
Description  Power Management IC for Li-Ion Powered Systems
Download  47 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65022 Datasheet(HTML) 37 Page - Texas Instruments

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background image
I
-OutputCurrent-mA
O
T =25 C
V
=1.55V
A
O
o
PWM/PFMMode
V =2.5V
I
V =3V
I
V =5V
I
V =4.2V
I
V =3.8V
I
0.01
0.1
1
10
100
1k
I
-OutputCurrent-mA
O
T =25 C
V
=3.3V
A
O
o
PFM/PWMMode
V =3.8V
I
V =4.2V
I
V =5V
I
0.01
0.1
1
10
100
1k
10k
I
-OutputCurrent-mA
O
T =25 C
V
=1.8V
A
O
o
PWM/PFMMode
V =2.5V
I
V =5V
I
0.01
0.1
1
10
100
1k
10k
V =4.2V
I
V =3.8V
I
TPS65022
www.ti.com
SLVS667B – JULY 2006 – REVISED JANUARY 2016
8.2.2.8 VCC-Filter
An RC filter connected at the VCC input is used to keep noise from the internal supply for the bandgap and other
analog circuitry. A typical value of 10 R and 1
μF is used to filter the switching spikes, generated by the DC-DC
converters. A larger resistor than 10 R should not be used because the current into VCC of up to 3 mA causes a
voltage drop at the resistor causing the undervoltage lockout circuitry connected at VCC internally to switch off too
early.
8.2.3 Application Curves
Figure 38. DCDC2 Efficiency
Figure 37. DCDC1 Efficiency
Figure 39. DCDC3 Efficiency
Copyright © 2006–2016, Texas Instruments Incorporated
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Product Folder Links: TPS65022


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