TPS6521855 - 7-Output PMIC for AM64x | Texas Instruments
MPN: TPS6521855 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1 | $1.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for TPS6521855 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS6521815RSLT
✅ Drop-In📋 Reference alternative (not in catalog)
TPS6521855 Maximum Ratings & Electrical Characteristics
| Function | Power Management IC (PMIC) for AM64x processors |
| Number of Outputs | 7 |
| Input Voltage Range | 2.2 V to 5.5 V |
| Output Voltage Range | 0.85 V to 3.4 V |
| Output Current | 1.8 A |
| Input Topology | Li-Ion battery or 5V adapter |
| Operating Temperature | -40C to +105C |
| Package | 48-VQFN (6x6 mm) |
| Mounting Style | SMD/SMT |
| Packaging | Cut Tape, Reel |
| Series | TPS6521855 |
| Type | Multi-Channel PMIC |
| Processor Support | AM64x Arm Cortex-A53 |
| Default Configuration | Factory pre-programmed for AM64x power-up sequence |
| Category | Power Management Specialized - PMIC |
| RoHS Status | [DATA_NEEDED: RoHS Status] |
TPS6521855 48-vqfn (6x6 mm) Pin Configuration Guide
Complete pinout information for TPS6521855 (48-vqfn (6x6 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for TPS6521855.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TPS6521855 is suitable for 6 applications: Industrial PLC and Factory Automation Controllers, Portable Li-Ion Battery-Powered Instruments, IoT Edge Gateways, Robotics and Motion Control Boards, Medical Monitoring Equipment, Test and Measurement Instrumentation.
Industrial PLC and Factory Automation Controllers
The TPS6521855 fits industrial PLCs because it delivers all seven AM64x voltage rails from one 48-VQFN device and is characterized from -40C to +105C, covering cabinet and floor-level temperature extremes. Its factory-programmed power-up sequence matches AM64x boot requirements, removing sequencing firmware effort. Powered from a 5V adapter input within the 2.2V to 5.5V range, it outputs 0.85V to 3.4V rails at up to 1.8A, consolidating power stages and reducing board area versus discrete converters.
Recommended
Portable Li-Ion Battery-Powered Instruments
For portable instruments built on AM64x, the TPS6521855 accepts a single-cell Li-Ion battery input (2.2V to 5.5V range) and generates the processor's core and I/O rails from 0.85V to 3.4V. The single-chip integration of seven rails minimizes quiescent board area and BOM count, extending battery life and shrinking enclosure size. Industrial temperature rating up to +105C also suits handheld field-test instruments exposed to outdoor conditions per the TI datasheet.
Recommended
IoT Edge Gateways
AM64x-based IoT edge gateways benefit from the TPS6521855's integration: seven rails in a 6x6 mm VQFN supply the Cortex-A53 cores, memory, and I/O from a single 5V adapter or battery-backed input. The 0.85V to 3.4V output range covers LPDDR and peripheral rails, and the factory AM64x sequence ensures reliable boot on power cycling common in unattended gateways. The -40C to +105C rating supports outdoor and industrial enclosures without local thermal management.
Recommended
Robotics and Motion Control Boards
Robotics controllers using AM64x require deterministic multi-rail power; the TPS6521855 provides the full processor power tree at up to 1.8A output capability in one package, freeing board space for motor-drive circuitry. Its -40C to +105C industrial rating tolerates drive-enclosure heating, and factory-programmed sequencing prevents core-rail violations during rapid power cycling between motion cycles. Companion TI gate drivers and CAN transceivers complete the drive stack on the same 5V bus.
Recommended
Medical Monitoring Equipment
Battery- or adapter-powered medical monitors benefit from the TPS6521855's dual input topology: it runs from a Li-Ion pack (2.2V to 5.5V) or a 5V wall adapter, enabling seamless AC/battery operation. The seven integrated rails power the AM64x processor and mixed-signal front ends from 0.85V to 3.4V, while the single-chip integration reduces component count - a benefit for reliability-critical designs. Verify isolation and patient-connected leakage requirements at the system level per applicable medical standards.
Recommended
Test and Measurement Instrumentation
Bench and portable test instruments built around AM64x use the TPS6521855 to consolidate processor power into one 48-VQFN footprint, simplifying the main board and freeing area for analog front ends. The device's 5V adapter input suits benchtop operation while Li-Ion support covers handheld analyzers. The -40C to +105C characterization range supports calibration across the instrument's specified operating environment, per the TI TPS6521855 datasheet application guidance.
Recommended
Recommended Products Summary
Engineering reference data for TPS6521855 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS6521815RSLT |
|---|---|---|
| Package | 48-VQFN (6x6) | 48-VQFN (6x6) - same |
| Brand | Texas Instruments | Texas Instruments |
| Number of Outputs | 7 | 7 |
| Input Voltage Range | 2.2 V to 5.5 V | 2.2 V to 5.5 V |
| Output Voltage Range | 0.85 V to 3.4 V | 0.85 V to 3.4 V |
| Factory AM64x Defaults | Yes (pre-programmed) | No - register programming required |
| Operating Temperature | -40C to +105C | -40C to +105C |
| Processor Target | AM64x | AM64x (with custom register configuration) |
Key Differentiators
- Factory pre-programmed AM64x power-up sequence (vs TPS6521815RSLT)
- Dual input topology in one PMIC (vs TPS6521815RSLT)
- Pin-to-pin family flexibility (vs TPS6521815RSLT)
Design Notes
Place the input and output capacitors as close as possible to the TPS6521855 VQFN-48 power pins to minimize parasitic inductance and ensure stable regulation across load steps. The 48-pin 6x6 mm QFN has an exposed thermal pad that must be soldered to a grounded copper pour with thermal vias for heat spreading and reliable -40C to +105C operation. Follow the TI TPS6521855 datasheet layout section for the recommended AM64x power-tree placement.
Verify the input source topology before layout: the TPS6521855 supports both Li-Ion battery (2.2V to 5.5V) and 5V adapter inputs, but the power-path configuration differs between the two. Also confirm that factory default sequencing matches your AM64x variant - if custom sequencing is needed, switch to the register-programmable TPS6521815 rather than fighting the fixed defaults.
Size the input supply for the combined peak current of all seven rails; the distributor-listed 1.8A output current applies to the output channels and the input source must handle total load with margin. Add bulk capacitance at the input for battery sag conditions, and verify 0.85V to 3.4V rail accuracy under worst-case load and temperature using the datasheet electrical tables.
Compliance Information
Compliance data not present in the verified web data. Check the TI product page at ti.com/product/TPS6521855 for current RoHS/REACH status.
