1 Features

• Wide VIN range from 5.6V to 21V

• Three variable-output voltage synchronous

step-down controllers with D-CAP2™ Topology

– Scalable output current using external fets with

selectable current limit

– I2C DVS control from 0.41V to 1.67V in

10mV steps or 1V to 3.575V in 25mV steps

• Three variable-output voltage synchronous stepdown

converters with dcs-control topology

– VIN range from 3V to 5.5V

– Up to 3 A of output current

– I2C DVS control from 0.41V to 1.67V in

10mV steps or 0.425V to 3.575V in 25mV steps

• Three LDO regulators with adjustable output

voltage

– LDOA1: I2C-selectable voltage from 1.35V to

3.3V for up to 200mA of output current

– LDOA2 and LDOA3: I2C-selectable voltage

from 0.7V to 1.5V for up to 600mA of output

current each

• VTT LDO for DDR memory termination

• Three load switches with slew rate control

– Up to 300mA of output current with voltage

drop less than 1.5% of nominal input voltage

– RDSON < 96mΩ at input voltage of 1.8V

• 5V fixed-output voltage LDO (LDO5)

– Power supply for gate drivers of SMPS and for

LDOA1

– Automatic switch to external 5V buck for higher

efficiency

• Built-in flexibility and configurability by factory OTP

programming

– Six GPI pins configurable to enable (CTL1 to

CTL6) or sleep mode entry (CTL3 and CTL6) of

any selected rails

– Four GPO pins configurable to power good of

any selected rails

– Open-drain interrupt output pin

• I2C interface supports standard mode (100kHz),

fast mode (400kHz), and fast mode plus (1MHz)

2 Applications

• Programmable logic controller

• Machine vision camera

• Video surveillance

• Test and measurement

• Embedded PCs

• Motion control

• Portable ultrasound

3 Description

The TPS650864 device family is a single-chip powermanagement

IC (PMIC) designed for Xilinx Zynq®

multiprocessor system-on-chip (MPSoCs) and field

programmable gate array (FPGA) families. The

TPS650864 offers an input range of 5.6V to 21V,

enabling a wide range of applications (see the

Device Comparison Table). The device is targeted

for wall-powered applications or 2S, 3S, or 4S

Li-Ion battery packs (NVDC or non-NVDC power

architectures). See the Typical Application section

for 5V input supplies. The D-CAP2 and DCS-Control

high-frequency voltage regulators use small passives

to achieve a small solution size. The D-CAP2

and DCS-Control topologies have excellent transient

response performance, ideal for processor core and

system memory rails that have fast load switching.

An I2C interface allows simple control either by an

embedded controller (EC) or by an SoC. The PMIC

comes in an 8mm × 8mm, single-row VQFN package

with thermal pad for good thermal dissipation.