1.1 Features 1

• Three Adjustable Step-Down Converters With

Integrated Switching FETs (DCDC1, DCDC2, and

DCDC3):

– DCDC1: 1.1-V Default, up to 1.8 A

– DCDC2: 1.1-V Default, up to 1.8 A

– DCDC3: 1.2-V Default, up to 1.8 A

– VIN Range From 3.6 V to 5.5 V

– Adjustable Output Voltage Range 0.85 V to

1.675 V (DCDC1 and DCDC2)

– Adjustable Output Voltage Range 0.9 V to 3.4 V

(DCDC3)

– Power Save Mode at Light Load Current

– 100% Duty Cycle for Lowest Dropout

– Active Output-Discharge When Disabled

• One Adjustable Buck-Boost Converter With

Integrated Switching FETs (DCDC4):

– DCDC4: 3.3-V Default, up to 1.6 A

– VIN Range from 3.6 V to 5.5 V

– Adjustable Output Voltage Range from 1.175 V

to 3.4 V

– Active Output-Discharge When Disabled

• Adjustable General-Purpose LDO (LDO1)

– LDO1: 1.8-V Default up to 400 mA

– VIN Range from 1.8 V to 5.5 V

– Adjustable Output Voltage Range from 0.9 V to

3.4 V

– Active Output-Discharge When Disabled

• High-Voltage Load Switch (LS) With 100-mA or

500-mA Selectable Current Limit

– VIN Range From 1.8 V to 10 V

– 500-mΩ (Max) Switch Impedance

• Supervisor With Built-in Supervisor Function

Monitors

– DCDC1, DCDC2 ±4% Tolerance

– DCDC3, DCDC4 ±5% Tolerance

– LDO1 ±5% Tolerance

• Protection, Diagnostics, and Control:

– Undervoltage Lockout (UVLO)

– Always-on Push-Button Monitor

– Overtemperature Warning and Shutdown

– I2C Interface (Address 0x24) (See Timing

Requirements for I2C Operation at 400 kHz)

1.2 Applications

• Grid Infrastructure

• Human-Machine Interface (HMI)

• Industrial Automation

• Electronic Point of Sale (ePOS)

• Test and Measurement

• Industrial Communications

• Backplane I/O

• Connected Industrial Drives

1.3 Description

The TPS65216 is a single chip, power-management IC (PMIC) specifically designed to support the

AMIC110, AMIC120, AM335x, and AM437x line of processors in line-powered (5 V) applications. The

device is characterized across a –40°C to +105°C temperature range, making it suitable for various

industrial applications.

The TPS65216 is specifically designed to provide power management for all the functionalities of the

AMIC110, AMIC120, AM335x, and AM437x. The DC/DC converters DCDC1 through DCDC4 are intended

to power the core, MPU, DDR memory, and 3.3-V analog and I/O, respectively. LDO1 provides the 1.8-V

analog and I/O for the processor. GPIO2 allows for warm reset of the DCDC1 and DCDC2 converters.

The I2C interface allows the user to enable and disable all voltage regulators, the load switch, and GPIOs.

Additionally, UVLO and supervisor voltage thresholds, power-up sequence, and power-down sequence

can be programmed through I2C. Interrupts for overtemperature, overcurrent, and undervoltage can be

monitored as well. The supervisor monitors DCDC1 through DCDC4 and LDO1. The supervisor has two

settings, one for typical undervoltage tolerance (STRICT = 0b), and one for tight undervoltage and

overvoltage tolerances (STRICT = 1b). A power-good signal indicates proper regulation of the five voltage

regulators.

Three hysteretic step-down converters are targeted at providing power for the processor core, MPU, and

DDRx memory. The default output voltages for each converter can be adjusted through the I2C interface.

DCDC1 and DCDC2 feature dynamic voltage scaling to provide power at all operating points of the

processor. DCDC1 and DCDC2 also have programmable slew rates to help protect processor

components. DCDC3 remains powered while the processor is in sleep mode to maintain power to DDRx

memory.

The TPS65216 device is available in a 48-pin VQFN package (6 mm × 6 mm, 0.4-mm pitch).