SLVA371A Datasheet, PDF (4/10 Pages) Texas Instruments – Powering Freon with TPS65070

Sequencing with TPS65070
www.ti.com
Figure 1 shows a complete application diagram that details how to connect the TPS65070 to power an
OMAP-L138 application processor.
AC
1uF
USB
1uF
ISET
set charge
current
SYS
sets default
voltage of
DCDC2 to
1.8V or 3.3V
DEFDCDC2
SYS
sets default
voltage of
DCDC3 to
1.0V or 1.2V
DEFDCDC3
VINLDO1/2
SYS
1uF
INT_LDO
2.2uF
AVDD6
4.7uF
/PB_IN
ON
EN_DCDC2
EN_DCDC3
SYS
L4
FB_wLED
1uF
ISINK1
ISINK2
ISET1
ISET2
TPS65070
charger / power
path
DCDC1
600mA
DCDC2
1500mA
DCDC3
1500mA
LDO2
200mA
LDO1
200mA
wLED
boost
AD_IN1(TSX1)
AD_IN2(TSX2)
AD_IN3(TSY1)
AD_IN4(TSY2)
THRESHOLD
-
+
delay
BAT
BAT
TS
NTC
SYS
VINDCDC1/2
LiIon
22uF
TPS78101
LDO
VINDCDC3
BYPASS ^AVDD6
Vin
EN
10uF
2.2uH
L1
VDCDC1
EN_DCDC1
2.2uH
L2
10uF _TPS3805H33 R1
SYS VDD
Sense
/Reset
R2
VDCDC2
10uF
2.2uH
L3
VDCDC3
10uF
VLDO2
2.2uF
VLDO1
T2
Si2333
2.2uF
PGND
R3 _R4
PowerPad(TM)
1uF ^C1
T1
BC847
VDDIO
AGND
PB_OUT
PGOOD
SDAT
SCLK
/INT
POWER_ON
/Reset
OMAP-L138
RTC_CVDD (1.2V)
USB0_VDDA33 (3.3V)
USB1_VDDA33 (3.3V)
DVDD3318_A (3.3V or 1.8V)
DVDD3318_B (3.3V or 1.8V)
DVDD3318_C (3.3V or 1.8V)
CVDD (1.2V)
SATA_VDD (1.2V)
PLL0_VDDA (1.2V)
PLL1_VDDA (1.2V)
USBs CVDD (1.2V)
VDDARNWA/1 (1.2V)
SATA_VDDR (1.8V)
USB0_VDDA18 (1.8V)
USB1_VDDA18 (1.8V)
DDR_DVDD18 (1.8V)
PB_INTERRUPT
/RESET
SDAT
SCLK
INT
GPIO (power hold)
Figure 1. TPS65070 Power Solution Diagram
4
Powering Freon with TPS65070
SLVA371A – February 2010 – Revised April 2010
Submit Documentation Feedback
Copyright © 2010, Texas Instruments Incorporated