1 Features

• Two banks of one-time programmable memory for

programming default voltages and sequence

• 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 or

Fixed 5V output

• 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 0.425V 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 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

3 Description

The TPS650861 device family is a single-chip powermanagement

IC (PMIC) designed to be programmed

for optimal output voltages and sequencing. The

TPS650861 has three controllers to provide flexible

power capable of up to 30A with large external FETs

for high power designs but which can scale down

in both size and cost for smaller designs. Combined

with three 3A converters, three general purpose

LDOs, a termination LDO for DDR, and three load

switches, the TPS650861 can provide system power

for a wide variety of applications. 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. The device has two banks of

one-time programmable (OTP) memory. For large

volume opportunities, please contact a local TI

sales representative to determine if use of TI's

manufacturing for a custom OTP is available. Third

party distributors may also support programming of

the TPS650861.