Texas Instruments TPS652190CRHBR

Overview

TPS652190CRHBR from Texas Instruments is a programmable Power Management IC (PMIC) integrating three synchronous buck converters (1×3.5A, 2×2A) and four LDOs (2×400mA, 2×300mA) for industrial SoC power delivery. It supports dynamic voltage scaling, I²C-based sequencing, EEPROM configuration, and operates across –40°C to +105°C ambient temperature - enabling use in AM62x/AM64x/AM243x-based HMIs, PLCs, and video surveillance systems.

For engineers reviewing the TPS652190CRHBR datasheet, TPS652190CRHBR pinout, TPS652190CRHBR application, or TPS652190CRHBR equivalent, key selection criteria include its 32-pin RHB QFN (5.00mm × 5.00mm) package, multi-rail sequencing capability, low-quiescent-current PFM/PWM operation, and support for SD-card bypass mode on two LDOs.

Technical Context

The TPS652190CRHBR implements a quasi-fixed-frequency PWM architecture with auto-entry PFM mode for light-load efficiency, and supports dynamic voltage scaling on all three buck converters via I²C register writes. Its feedback architecture uses internal 2.5V reference with external resistor dividers on FB_B1/FB_B2/FB_B3 pins, enabling precise output regulation from 0.6V to 3.4V (BUCK1–BUCK3) and 1.2V to 3.3V (LDO3/LDO4).

It features dual-mode multi-function pins (e.g., MODE/STBY, MODE/RESET, VSEL_SD/VSEL_DDR), configurable GPIO/GPOs, and integrated voltage monitors for VSYS UVLO/OVP detection. The device supports multi-PMIC configurations for systems requiring >14 rails, with synchronized sequencing across up to two devices using GPIO synchronization.

Key Specifications

Pinout & Package

TPS652190CRHBR is housed in a 32-pin RHB QFN package (5.00mm × 5.00mm) with exposed thermal pad (PGND) for enhanced thermal dissipation. The package supports JEDEC-standard reflow and requires minimum 10µF output capacitance per buck rail and 2.2µF per LDO output.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PMIC applications.

Compared with TPS652190CRHBR, the TPS6521904RHB offers faster time-to-operation with factory-set registers but less adaptability, while the TPS6521905RHB provides maximum configuration freedom at the cost of mandatory firmware initialization - making TPS652190CRHBR the balanced choice for industrial developers needing both programmability and verified AM62x/AM64x compatibility.

Availability

TPS652190CRHBR is available at Aetrix Electronics and suitable for industrial HMIs, PLC mainboards, and video surveillance systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability for safety-critical deployments.

Supply support for TPS652190CRHBR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of industrial-grade reliability validation.

The TPS65219 series is designed specifically for powering next-generation industrial SoCs like AM62x, AM64x, and AM243x - emphasizing programmable sequencing, wide temperature operation, and integration of buck, LDO, and system-control functions in a single package.

FAQ

What is the package type and thermal pad configuration for TPS652190CRHBR?

The TPS652190CRHBR uses a 32-pin RHB QFN package (5.00mm × 5.00mm) with an exposed thermal pad (PGND) that must be soldered to a continuous PCB ground plane using ≥4 thermal vias. This configuration achieves 10.9°C/W junction-to-board thermal resistance, critical for maintaining ≤125°C junction temperature in sealed industrial enclosures.

Does TPS652190CRHBR support dynamic voltage scaling for all three buck converters?

Yes, the TPS652190CRHBR supports dynamic voltage scaling on BUCK1, BUCK2, and BUCK3 via I²C register writes to the VOUT_BUCKx registers. Each buck's output can be adjusted in 25mV steps (0.6V–1.4V) or 100mV steps (1.4V–3.4V), enabling real-time adaptation to AM62x/AM64x DVFS states without hardware changes.

How does the VSEL_SD/VSEL_DDR pin function on TPS652190CRHBR?

The VSEL_SD/VSEL_DDR pin on TPS652190CRHBR is a multi-function input: in VSEL_SD mode, it toggles LDO1/LDO2 between 1.8V and register-configured voltage for SD-card IO; in VSEL_DDR mode, it selects DDR termination voltage (1.2V, 1.35V, or floating). Polarity and function are set via EEPROM configuration.

What are the I²C timing and voltage level requirements for TPS652190CRHBR?

The TPS652190CRHBR supports I²C standard-mode (100kHz), fast-mode (400kHz), and fast-mode+ (1MHz). SCL/SDA pins operate at 1.8V–3.3V logic levels and require external pull-ups to VIO. The device includes deglitch filtering and supports repeated START conditions for robust multi-master bus operation.

Can TPS652190CRHBR be used in multi-PMIC configurations, and how is synchronization achieved?

Yes, TPS652190CRHBR supports multi-PMIC operation for systems requiring >14 rails. Synchronization is achieved using the GPIO pin in synchronizing I/O mode: one device acts as master, driving GPIO low to align power-up timing across slave devices, ensuring deterministic sequencing and eliminating race conditions during cold start.