TPS659162RGZR

The TPS65916 PMIC integrates five configurable buck converters with up to 3.5A output current to power processor cores, memory, I/O, and pre-regulation circuits via LDOs. The buck converters synchronize to an internal 2.2MHz clock to enhance device EMC performance. The GPIO3 pin allows the buck converters to synchronize to an external clock, enabling multiple devices to synchronize to the same clock for improved system-level EMC performance. The device also includes five LDOs for powering low-current or low-noise domains. The power sequencing controller uses one-time programmable (OTP) memory to control the power sequence, along with default configurations such as output voltages and GPIO settings. The OTP is factory-programmed, enabling startup without software. Most default static settings can be modified via SPI or I2C to configure the device for a variety of system requirements. For example, voltage regulation registers support the processor's dynamic voltage scaling requirements. The OTP also features bit integrity error detection, which halts the power-up sequence upon error detection to prevent the system from starting in an unknown state. The TPS65916 device also incorporates an ADC for monitoring system status. The GPADC includes two external channels for monitoring all external voltages, as well as multiple internal channels for measuring supply voltages, output currents, and die temperature, allowing the processor to monitor system health. The device provides watchdog monitoring for software lockup conditions and offers protection and diagnostic mechanisms such as short-circuit protection, thermal monitoring, shutdown, and automatic ADC conversions to detect voltages falling below predefined thresholds. The PMIC can report these events to the processor via interrupt handlers, enabling the processor to take appropriate responsive action.

Applications

• Industrial automation
• Human Machine Interface (HMI)
• Camera surveillance systems
• Programmable Logic Controller (PLC)
• Factory automation

Key features

• System voltage range: 3.135V to 5.25V
• Low power consumption – 20μA in power-down mode – 90μA in sleep mode (two SMPS active)
• Five step-down SMPS regulators:
• Output voltage range: 0.7V to 3.3V (in 10mV or 20mV steps)
• Two SMPS regulators with 3.5A current capability, 7A output in dual-phase configuration, and differential remote sensing (output and ground)
• Three additional SMPS regulators with 3A, 2A, and 1.5A current capability respectively
• 3.5A and 3A SMPS regulators with DVS control and output current measurement
• Hardware and software controlled Eco-mode supporting up to 5mA
• Short-circuit protection
• Power-good indication (voltage and overcurrent indication)
• Internal soft-start for inrush current limiting
• Synchronization to external clock in the range of 1.7MHz to 2.7MHz
• Five LDO linear regulators:
• Output voltage range: 0.9V to 3.3V (in 50mV steps)
• Two regulators with 300mA current capability and bypass mode
• One regulator with 100mA current capability and low-noise performance up to 50mA
• Two additional LDOs with 200mA current capability
• Short-circuit protection
• 12-bit ∑-Δ general-purpose ADC (GPADC) with 8 input channels (2 external)
• Temperature monitoring with high-temperature alarm and thermal shutdown
• Power sequencing control:
• Configurable power-up and power-down sequence (OTP)
• Configurable sequence between sleep and active state transitions (OTP)
• Three digital output signals assignable to startup sequence
• Optional control interfaces:
• One SPI for resource configuration and DVS control
• Two I2C interfaces:
• One dedicated to DVS control
• One general-purpose I2C interface for resource configuration and DVS control
• OTP bit integrity error detection with option to run or hold power-up sequence and RESET_OUT release
• Package options:
• 7mm × 7mm 48-pin VQFN, 0.5mm pitch