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TPS61300YFFR Datasheet(PDF) 62 Page - Texas Instruments

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No. de Pieza. TPS61300YFFR
Descripción  TPS6130xx 1.5-A and 4.1-A Multiple LED Camera Flash Driver With I2C Compatible Interface
Descarga  70 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS61300YFFR Datasheet(HTML) 62 Page - Texas Instruments

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VOUT
AVIN
SW
C I
SW
LED1
PGND
PGND
AGND
L
2.2 mH
SDA
SCL
High-Speed
I2C I/F
TPS61305
LED2
LED3
D1
D2
2.5 V..5.5 V
FLASH_SYNC
TS
HC _SEL
GPIO /PG
INDLED
Privacy
Indicator
BAL
NTC
Tx -MASK
ENDCL
C O
10 mF
Copyright © 2016, Texas Instruments Incorporated
62
TPS61300, TPS61301
TPS61305, TPS61305A, TPS61306
SLVS957E – JUNE 2009 – REVISED APRIL 2016
www.ti.com
Product Folder Links: TPS61300 TPS61301 TPS61305
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
System Examples (continued)
9.3.9 TPS61306, Typical Application
Figure 107. TPS61306, Typical Application
10 Power Supply Recommendations
The TPS6130xx is designed to operate from an input voltage supply range from 2.5 V to 5.5 V. This input supply
must be well regulated and capable to supply the required input current. If the input supply is located far from the
TPS6130xx, additional bulk capacitance may be required in addition to the ceramic bypass capacitors.
11 Layout
11.1 Layout Guidelines
As for all switching power supplies, the layout is an important step in the design, especially at high peak currents
and high switching frequencies. If the layout is not carefully done, the regulator could show stability problems as
well as EMI problems. Therefore, use wide and short traces for the main current path and for the power ground
tracks.
The input capacitor, output capacitor, and the inductor must be placed as close as possible to the IC. Use a
common ground node for power ground and a different one for control ground to minimize the effects of ground
noise. Connect these ground nodes at any place close to one of the ground pins of the IC.
To lay out the control ground, TI recommends using short traces as well, separated from the power ground
traces. This avoids ground shift problems, which can occur due to superimposition of power ground current and
control ground current.


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