Datasheet

VLDO1
LDO1
200mA
FB2
L2
DCDC2
400mA
TPS65708
Vout2=1.8V
Vout3=2.8V
FB1
1.5 Hm
L1
DCDC1
400mA
Vout1=3.3V
VIN1
VIN2
PGND1
PGND2
VCC
MODE
VLDO2
LDO2
200mA
Vout4=1.2V
5Vor3.3V
dependingonLED
PWM
ISINK
VINLDO1
VINLDO2
2.2 Fm
10 Fm
5V
7.5mA
dimmngsignal
fromuP
10 Fm
2.2 Fm
2.2 Fm
2.2 Fm
10 Fm
10 Fm
1.5 Hm
TPS65708
www.ti.com SLVSAE1A –OCTOBER 2010– REVISED FEBRUARY 2011
Figure 15. Powering the LDOs From the Output of the DCDC Converters to Improve Efficiency
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REVISION HISTORY
Changes from Original (October, 2010) to Revision A Page
• Corrected pin location identification for VCC, VIN1, and VIN2 pins ..................................................................................... 6
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