Datasheet

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DEFDCDC3
VDCDC3
PGND3
L3
VINDCDC3
VINDCDC1
L1
PGND1
VDCDC1
DEFDCDC1
HOT_RESET
DEFLDO1
DEFLDO2
VSYSIN
VBACKUP
VRTC
AGND2
VINLDO
VLDO1
VLDO2
SCLK
SDAT
INT
RESPWRON
TRESPWRON
DCDC1_EN
DCDC2_EN
DCDC3_EN
LDO_EN
LOWBAT
AGND1 LOWBAT_SNS PWRFAIL_SNS
VCC
VINDCDC2 L2 PGND2
VDCDC2
DEFDCDC2 PWRFAIL
TPS65023, TPS65023B
www.ti.com SLVS670J –JUNE 2006– REVISED SEPTEMBER 2011
PIN ASSIGNMENT
(TOP VIEW)
PIN FUNCTIONS
PIN
I/O DESCRIPTION
NAME NO.
SWITCHING REGULATOR SECTION
AGND1 40 Analog ground. All analog ground pins are connected internally on the chip.
AGND2 17 Analog ground. All analog ground pins are connected internally on the chip.
PowerPAD™ – Connect the power pad to analog ground.
Input voltage for VDCDC1 step-down converter. VINDCDC1 must be connected to the same voltage
VINDCDC1 6 I
supply as VINDCDC2, VINDCDC3, and VCC.
L1 7 Switch pin of VDCDC1 converter. The VDCDC1 inductor is connected here.
VDCDC1 9 I VDCDC1 feedback voltage sense input. Connect directly to VDCDC1
PGND1 8 Power ground for VDCDC1 converter.
Input voltage for VDCDC2 step-down converter. VINDCDC2 must be connected to the same voltage
VINDCDC2 36 I
supply as VINDCDC1, VINDCDC3, and VCC.
L2 35 Switch pin of VDCDC2 converter. The VDCDC2 inductor is connected here.
VDCDC2 33 I VDCDC2 feedback voltage sense input. Connect directly to VDCDC2
PGND2 34 Power ground for VDCDC2 converter
Input voltage for VDCDC3 step-down converter. VINDCDC3 must be connected to the same voltage
VINDCDC3 5 I
supply as VINDCDC1, VINDCDC2, and VCC.
L3 4 Switch pin of VDCDC3 converter. The VDCDC3 inductor is connected here.
VDCDC3 2 I VDCDC3 feedback voltage sense input. Connect directly to VDCDC3
PGND3 3 Power ground for VDCDC3 converter.
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Product Folder Link(s) :TPS65023 TPS65023B