TPS65919-Q1 Datasheet, PDF (6/81 Pages) Texas Instruments – Power Management Unit (PMU) for Processor

TPS65919-Q1
SLVSDM1 – AUGUST 2017
www.ti.com
Table 3-1. Pin Attributes (continued)
PIN
NAME
I/O
NO.
DESCRIPTION
SMPS4_FDBK
17
I Output voltage-sense (feedback) input for SMPS4
SMPS4_SW
19
O Switch node of SMPS4; connect output inductor
SMPS_IN
46
I Power input for SMPS
NC
45
— No Connection
NC
47
— No Connection
LOW DROPOUT REGULATORS
LDO12_IN
22
I Power input voltage for LDO1 and LDO2 regulators
LDO1_OUT
23
O LDO1 output voltage
LDO2_OUT
21
O LDO2 output voltage
LDO_IN
5
I Power input voltage for LDO regulator
NC
6
— No Connection
LDO4_IN
8
I Power input voltage for LDO4 regulator
LDO4_OUT
7
O LDO4 output voltage
LDO5_IN
3
I Power input voltage for LDO5 regulator
LDO5_OUT
4
O LDO5 output voltage
LOW-DROPOUT REGULATORS (INTERNAL)
LDOVRTC_OUT
LDOVRTC output voltage. To support rapid power off and on,
44
O connect a pulldown resistor on the LDOVRTC_OUT pin. See
Section 5.15 for more details.
LDOVANA_OUT
43
O LDOVANA output voltage
GPADC
ADCIN1
38
I GPADC input 1
ADCIN2
39
I GPADC input 2
CLOCKING
SYNCCLKOUT
Primary function: 2.2-MHz fallback switching frequency for
SMPS
48
O
Secondary function: 32-kHz digital-gated output clock when
VIO_IN input supply is present
SYSTEM CONTROL
BOOT
16
I Boot ball for power-up sequence selection
GPIO_0
GPIO_1
GPIO_2
I/O Primary function: General-purpose input⁽²⁾ and output
Secondary function: ENABLE2 which is the peripheral power
12
I ^{request input 2}
Secondary function: PWRDOWN input
O
Secondary function: REGEN1 which is the external regulator
enable output 1
I/O Primary function: General-purpose input⁽²⁾ and output
Secondary function: RESET_IN which is the reset input
13
I
Secondary function: VBUS_SENSE input
Secondary function: NRESWARM which is the warm reset
input
I/O Primary function: General-purpose input⁽²⁾ and output
2
I
Secondary function: ENABLE1 which is the peripheral power
request input 1
Secondary function: I2C2_SDA_SDO which is the DVS I²C
I/O serial bidirectional data (external pullup) and the SPI output
data signal
CONNECTION
IF NOT USED
Ground
Floating
System supply
Floating
Floating
System supply
Floating
Floating
System supply
Floating
System supply
Floating
System supply
Floating
—
—
Ground
Ground
Floating
Ground or
VRTC
Ground or
VRTC
Floating
Ground or VIO
Floating
Floating
Floating
Ground or VIO
VRTC
Floating
Floating
Floating
PU/PD ⁽¹⁾
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
PPD
PPD ⁽²⁾
PPD
—
PPD
PPD
—
PPD
PPU
PPD
PPU
PPD ⁽²⁾
—
(2) Default option.
6
Pin Configuration and Functions
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