Texas Instruments TPS659121 PMU for Processor Power Evaluation Module TPS659121EVM-081 TPS659121EVM-081 Datenbogen
Produktcode
TPS659121EVM-081
PRODUCTPREVIEW
SWCS078 – JUNE 2012
Table 1-1. TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
TPS659121
REFERENCE
VREF1V25
H3
O
AGND
F3, C7
-
analog ground connection; connect to PGND on the PCB
DRIVERS / LIGHTING
LEDA/GPIO3
B3
I/O
general purpose I/O or LED driver output
LEDB/GPIO4
B2
I/O
general purpose I/O or LED driver output
LEDC/GPIO5
B1
I/O
general purpose I/O or LED driver output
STEP_DOWN CONVERTERS
analog supply input for DCDC converters; needs to be connected to VINDCDC1, VINDCDC2,
VINDCDC_ANA
C8
I
VINDCDC3 and VINDCDC4
power input to DCDC1 converter; connect to VINDCDC2, VINDCDC3, VINDCDC4 and
VINDCDC1
H7, J7
I
VINDCDC_ANA
VDCDC1
J4
I
voltage sense (feedback) input "+" for DCDC1
VDCDC1_GND
H4
I
voltage sense (feedback) input "GND" for DCDC1
SW1
H6, J6
O
switch node of DCDC1; connect output inductor
PGND1
H5, J5
-
power GND connection for DCDC1 converter
VCON_PWM
F4
I
PWM period signal for dynamic voltage scaling on DCDC1
VCON_CLK
F5
I
clock signal for dynamic voltage scaling on DCDC1
power input to DCDC2 converter; connect to VINDCDC1, VINDCDC3, VINDCDC4 and
VINDCDC2
C9
I
VINDCDC_ANA
VDCDC2
D7
I
voltage sense (feedback) input for DCDC2
SW2
D9
O
switch node of DCDC2; connect output inductor
PGND2
E9
-
power GND connection for DCDC2 converter
power input to DCDC3 converter; connect to VINDCDC1, VINDCDC2, VINDCDC4 and
VINDCDC3
C1
I
VINDCDC_ANA
VDCDC3
F2
I
voltage sense (feedback) input for DCDC3
SW3
D1
O
switch node of DCDC3; connect output inductor
PGND3
E1
-
power GND connection for DCDC3 converter
power input to DCDC4 converter; connect to VINDCDC1, VINDCDC2, VINDCDC3 and
VINDCDC4
A7, B7
I
VINDCDC_ANA
VDCDC4
A4
I
voltage sense (feedback) input "+" for DCDC4
VDCDC4_GND
B4
I
voltage sense (feedback) input "GND" for DCDC4
SW4
A6, B6
O
switch node of DCDC4; connect output inductor
PGND4
A5, B5
-
power GND connection for DCDC4 converter
LOAD SWITCH
LSI
B8, B9
I
input of the load switch
LSO
A8, A9
O
output of the load switch
EN_LS0
C3
I
load switch enable pin; the status is copied to Bit [LOADSWITCH:ENABLE0] in state CONFIG
EN_LS1
C2
I
load switch enable pin; the status is copied to Bit [LOADSWITCH:ENABLE1] in state CONFIG
LOW DROPOUT REGULATORS
VINLDO1210
J2
I
power input for LDO1, LDO2 and LDO10
VINLDO3
F8
I
power input for LDO3
VINLDO4
F1
I
power input for LDO4
VINLDO5
G8
I
power input for LDO5
VINLDO67
A2
I
power input for LDO6 and LDO7
VINLDO8
H8
I
power input for LDO8
VINLDO9
J8
I
power input for LDO9
4
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