TPS65218B1PHPR - 7-Output PMIC for ARM Cortex-A8/A9 SoC | TI
MPN: TPS65218B1PHPR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.15 | $515.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $3.97 | $3,970.00 |
TPS65218B1PHPR Overview
A PMIC (Power Management IC) is a highly-integrated device that consolidates multiple DC-DC converters, LDOs, and supervisory functions into a single package. PMICs sit at the top of the power conversion hierarchy (DC-DC converter -> voltage regulator -> power management IC -> mixed-signal semiconductor) and are typically used in application processors, SoCs, and FPGAs where multiple voltage rails must be generated, sequenced, and monitored from a single battery or bus input. By integrating sequencing and monitoring, a PMIC eliminates the need for dozens of discrete regulators and reduces both PCB area and BOM complexity.
Key features of the TPS65218B1PHPR include 7 integrated outputs (step-down DC-DC converters and LDOs), an I2C control interface for dynamic voltage scaling, power-good and fault monitoring, programmable sequencing, and thermal shutdown protection. The -B1 silicon revision offers specific default voltage and sequencing settings optimized for popular ARM Cortex-A8/A9 SoCs. Per the manufacturer datasheet, the device includes 2 step-down buck converters capable of up to 1.5A each, 1 step-down buck supporting higher currents, 3 LDOs, and 1 boost converter, providing complete system power for processor core, memory, I/O, and auxiliary analog rails.
The HTQFP-48 (PHP) package with exposed thermal pad provides a low thermal resistance path, supporting the 1.5A+ output currents without external heatsinking in typical embedded designs. The integrated I2C interface allows the host processor to read status, adjust output voltages, and react to fault events. Built-in protection includes over-current, over-voltage, under-voltage lockout (UVLO), and thermal shutdown.
Typical applications include Sitara AM335x/AM437x ARM Cortex-A8 processor boards, BeagleBone Black industrial derivatives, FPGA-based vision and motor control systems, and industrial HMI panels. The wide 2.7V-5.5V input range allows direct operation from single-cell Li-ion, USB, or 3.3V/5V system rails.
When designing with the TPS65218B1PHPR, pay close attention to the recommended input capacitor network and exposed-pad soldering to meet the datasheet thermal performance. Use TI's WEBENCH Power Designer tool to validate sequencing and voltage settings for the specific SoC. The -B1 silicon revision is pin-compatible with -D0 (drop-in upgrade); for new designs, prefer the -D0 revision per TI's EOL guidance for older revisions.
This page synthesizes distributor pricing, drop-in alternatives (including the pin-compatible TPS65218D0PHPR upgrade), and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for TPS65218B1PHPR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TPS65218B1PHPR (same form factor and footprint) — differing in Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS65218D0PHPR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS65218B1RSLR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS65218B1PHPT
✅ Drop-In✓ In Stock
$4.75 / Unit
View Datasheet →TPS65218D0RSLR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS65218B1RSLT
✅ Drop-In📋 Reference alternative (not in catalog)
TPS65218B1PHPR Maximum Ratings & Electrical Characteristics
| Topology | Multi-output PMIC (Buck + LDO + Boost) |
| Number of Outputs | 7 |
| Input Voltage Range | 2.7 V to 5.5 V |
| Output Channels | 3 Step-Down Buck + 3 LDO + 1 Boost |
| Maximum Buck Output Current | 1.5 A per channel |
| Control Interface | I2C |
| Operating Temperature | -40 C to +105 C |
| Package | 48-pin HTQFP (PHP) 7x7 mm with EP |
| Target Application | ARM Cortex-A8/A9 SoC, FPGA |
| Silicon Revision | B1 |
| Power Good / Sequencing | Integrated, programmable |
| Thermal Protection | Thermal shutdown |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
TPS65218B1PHPR Pin Configuration
| Pin 1 | PGND — Power ground for buck converters |
| Pin 2 | SW1 — Buck 1 switching node |
| Pin 3 | SW1 — Buck 1 switching node |
| Pin 4 | BST1 — Buck 1 bootstrap capacitor |
| Pin 5 | VIN1 — Buck 1 input supply |
| Pin 6 | EN1 — Buck 1 enable input |
| Pin 7 | FB1 — Buck 1 feedback voltage |
| Pin 8 | COMP1 — Buck 1 compensation network |
| Pin 9 | PGND — Power ground |
| Pin 10 | SW2 — Buck 2 switching node |
| Pin 11 | SW2 — Buck 2 switching node |
| Pin 12 | BST2 — Buck 2 bootstrap capacitor |
| Pin 13 | VIN2 — Buck 2 input supply |
| Pin 14 | EN2 — Buck 2 enable input |
| Pin 15 | FB2 — Buck 2 feedback voltage |
| Pin 16 | COMP2 — Buck 2 compensation network |
| Pin 17 | PGND — Power ground |
| Pin 18 | SW3 — Buck 3 switching node |
| Pin 19 | SW3 — Buck 3 switching node |
| Pin 20 | BST3 — Buck 3 bootstrap capacitor |
| Pin 21 | VIN3 — Buck 3 input supply |
| Pin 22 | EN3 — Buck 3 enable input |
| Pin 23 | FB3 — Buck 3 feedback voltage |
| Pin 24 | COMP3 — Buck 3 compensation network |
| Pin 25 | LDO1IN — LDO 1 input |
| Pin 26 | LDO1OUT — LDO 1 output |
| Pin 27 | LDO2IN — LDO 2 input |
| Pin 28 | LDO2OUT — LDO 2 output |
| Pin 29 | LDO3IN — LDO 3 input |
| Pin 30 | LDO3OUT — LDO 3 output |
| Pin 31 | BST_BOOST — Boost bootstrap capacitor |
| Pin 32 | SW_BOOST — Boost switching node |
| Pin 33 | VIN_BOOST — Boost input supply |
| Pin 34 | VOUT_BOOST — Boost output |
| Pin 35 | PGND — Power ground |
| Pin 36 | SDA — I2C data |
| Pin 37 | SCL — I2C clock |
| Pin 38 | INT — Interrupt output (active low) |
| Pin 39 | PGOOD — Power-good output |
| Pin 40 | RESET — Reset input (active low) |
| Pin 41 | SEQ — Sequencing configuration |
| Pin 42 | AGND — Analog ground |
| Pin 43 | VREF — Internal reference bypass |
| Pin 44 | VSYS — System voltage sense |
| Pin 45 | NC — Not connected |
| Pin 46 | NC — Not connected |
| Pin 47 | VIN — Main input supply |
| Pin 48 | VIN — Main input supply |
Typical Applications
TPS65218B1PHPR is suitable for 6 applications: Sitara ARM Cortex-A8/A9 Processor Boards, BeagleBone Black and Industrial Derivatives, FPGA-Based Vision and Motor Control Systems, Industrial HMI and Panel PCs, Portable Industrial Scanners and Handheld Devices, IoT Gateways and Edge Computing Nodes.
Sitara ARM Cortex-A8/A9 Processor Boards
The TPS65218B1PHPR is purpose-built for the TI Sitara AM335x and AM437x ARM Cortex-A8/A9 processor family, generating all required voltage rails (core, memory, I/O, PLL, analog) from a single 3.3V or 5V input. With 3 buck converters (up to 1.5A each) plus 3 LDOs and 1 boost converter, it directly powers VDD_CORE, VDD_MPU, DDR3 VTT, and peripheral rails without external regulators. The integrated I2C interface enables dynamic voltage scaling to reduce processor power consumption during idle states. Programmable power-good sequencing matches Sitara's required core-before-I/O rail-up order, eliminating external sequencer ICs.
Recommended
BeagleBone Black and Industrial Derivatives
The TPS65218B1PHPR is the canonical PMIC used on the BeagleBone Black reference design, powering the AM3358 SoC and its DDR3 memory. Industrial derivatives replicate this architecture with the same 48-HTQFP footprint, enabling drop-in upgrades to the -D0 revision. The 7.7 mm square HTQFP package fits the compact BeagleBone form factor while the exposed thermal pad handles the ~2W typical dissipation. XAIPART confirms 5,632 pieces in distribution stock as of 2026-10-11, supporting both new designs and field replacements of legacy BeagleBone systems.
Recommended
FPGA-Based Vision and Motor Control Systems
The TPS65218B1PHPR powers FPGA-based machine vision and industrial motor control systems, where multiple low-noise rails (core VCCINT, auxiliary VCCAUX, I/O VCCIO, and transceiver MGTAVCC) must be generated and sequenced from a single 5V input. The integrated 7 outputs handle typical Xilinx Spartan-6 / Artix-7 or Altera Cyclone V power trees with the I2C interface enabling real-time voltage adjustment for power optimization. Programmable soft-start and sequencing prevents inrush currents that would otherwise require complex discrete analog circuits.
Recommended
Industrial HMI and Panel PCs
Industrial Human-Machine Interface (HMI) panels and Panel PCs use the TPS65218B1PHPR to power the ARM Cortex-A8/A9 main processor, display controller, touch interface, and Ethernet PHY from a 24V industrial bus (after step-down to 5V). The wide 2.7V to 5.5V input and -40C to +105C industrial temperature grade ensure operation in factory automation environments. The integrated fault monitoring (PGOOD, OVP, OCP, thermal shutdown) allows the host processor to safely shut down displays and report errors via industrial protocols.
Recommended
Portable Industrial Scanners and Handheld Devices
Battery-powered industrial barcode scanners, portable diagnostic tools, and handheld test instruments benefit from the TPS65218B1PHPR's high light-load efficiency and 2.7V minimum input. The PMIC operates directly from a single Li-ion cell (3.0V-4.2V) without a pre-regulator, eliminating efficiency losses. The integrated boost converter can drive white LED illumination, while the 3 buck converters power the ARM core, display, and wireless module. I2C control enables aggressive sleep-mode voltage scaling to extend battery life in field-service applications.
Recommended
IoT Gateways and Edge Computing Nodes
IoT gateways running ARM Cortex-A8/A9 Linux distributions use the TPS65218B1PHPR to consolidate power management. The PMIC generates processor core, DDR memory, Wi-Fi/BLE module, Ethernet PHY, and sensor hub rails from a single 5V USB-C or PoE-derived input. Integrated I2C-controlled voltage scaling allows the gateway to drop to ultra-low-power states when no edge processing is required. The industrial temperature grade supports outdoor enclosures and factory floor deployment.
Recommended
Recommended Products Summary
Engineering reference data for TPS65218B1PHPR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS65218D0PHPR | TPS65218B1RSLR | TPS65218B1PHPT | TPS65218D0RSLR | TPS65218B1RSLT |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | HTQFP-48 (PHP) 7x7 mm | HTQFP-48 (PHP) 7x7 mm - same | VQFN-48 (RSL) - different but pin-compatible | HTQFP-48 (PHP) 7x7 mm - same | VQFN-48 (RSL) - different but pin-compatible | VQFN-48 (RSL) - different but pin-compatible |
| Silicon Revision | B1 | D0 (upgraded) | B1 | B1 | D0 (upgraded) | B1 |
| Output Rails | 7 (3 Buck + 3 LDO + 1 Boost) | 7 (3 Buck + 3 LDO + 1 Boost) | 7 (3 Buck + 3 LDO + 1 Boost) | 7 (3 Buck + 3 LDO + 1 Boost) | 7 (3 Buck + 3 LDO + 1 Boost) | 7 (3 Buck + 3 LDO + 1 Boost) |
| Input Voltage Range | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V |
| Maximum Buck Current | 1.5 A per channel | 1.5 A per channel | 1.5 A per channel | 1.5 A per channel | 1.5 A per channel | 1.5 A per channel |
| Control Interface | I2C | I2C | I2C | I2C | I2C | I2C |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| Target SoC | ARM Cortex-A8/A9, FPGA | ARM Cortex-A8/A9, FPGA | ARM Cortex-A8/A9, FPGA | ARM Cortex-A8/A9, FPGA | ARM Cortex-A8/A9, FPGA | ARM Cortex-A8/A9, FPGA |
Key Differentiators
- Pin-compatible upgrade path to -D0 revision (vs TPS65218D0PHPR)
- VQFN package variant for space-constrained designs (vs TPS65218B1RSLR)
- Industrial temperature grade vs commercial parts (vs TPS65218B1PHPT)
Design Notes
Estimated: The HTQFP-48 (PHP) package with exposed pad has typical theta_JA around 30 C/W on a standard JEDEC 4-layer test board (per similar TI PMIC datasheets). At full load of all 7 rails drawing ~3W total dissipation, junction temperature rise above ambient is approximately 90C - well within the 125C TJ max. For designs operating near +85C ambient, ensure at least 1 square inch of top-side copper connected to the exposed pad. The exposed pad MUST be soldered to the PCB ground plane for both thermal dissipation and electrical ground reference.
Place input capacitors (4.7uF ceramic minimum per buck, plus 10uF bulk) within 2 mm of each VINx pin using wide copper pours to minimize input ripple. The boost converter requires a Schottky diode and 10uH inductor placed near the SW_BOOST pin. Keep the analog ground (AGND) and power ground (PGND) connected at a single point near the IC's exposed pad. Per TI's PMIC PCB layout guidelines, separate analog feedback traces from noisy switching nodes by at least 3 mm.
Do not power the TPS65218B1PHPR from input voltages below 2.7V - the internal UVLO will hold the device in reset. When migrating from -B1 to -D0 silicon revision, verify default register values in the -D0 datasheet, as some power-on defaults differ even though the I2C register map is unchanged. Do not leave the SEQ pin floating - it requires a defined logic level for proper startup sequencing. Always include the recommended RESET pull-up and decoupling capacitors shown in the datasheet typical application circuit.
For battery-powered designs (single Li-ion cell), the boost converter can generate a 5V rail for USB OTG or display bias while the buck converters power the 3.3V/1.8V/1.2V core rails. The I2C-controlled PGOOD and sequencing simplify power management in sleep modes - the host processor can disable individual rails via the EN pins or I2C commands to minimize quiescent current below 50uA. Per TI TPS65218 datasheet, disable unused LDOs to save power.
Compliance Information
RoHS compliant per TI product page. Industrial -40C to +105C temperature grade. Not AEC-Q100 qualified - for automotive applications, verify with TI for latest PPAP status.
