TPS65218B1PHPR - 7-Output PMIC for ARM Cortex-A8/A9 SoC | TI
料号： TPS65218B1PHPR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 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 概述
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.
直接替换替代料： TPS65218B1PHPR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TPS65218B1PHPR （相同外形与封装尺寸） ——差异在于 Operating Temperature, Package.
快速对比工具——选择替代料号进行并排对比：
TPS65218D0PHPR
✅ 直接替换📋 参考替代料（不在目录中）
TPS65218B1RSLR
✅ 直接替换📋 参考替代料（不在目录中）
TPS65218B1PHPT
✅ 直接替换✓ 有现货
$4.75 / 个
查看数据手册 →TPS65218D0RSLR
✅ 直接替换📋 参考替代料（不在目录中）
TPS65218B1RSLT
✅ 直接替换📋 参考替代料（不在目录中）
TPS65218B1PHPR 最大额定值与电气特性
| 拓扑 | Multi-output PMIC (Buck + LDO + Boost) |
| 输出数量 | 7 |
| 输入电压范围 | 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 |
| 工作温度 | -40 C to +105 C |
| 封装 | 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 |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 |
| RoHS 状态 | Compliant |
TPS65218B1PHPR 引脚配置
| 引脚 1 | PGND — Power ground for buck converters |
| 引脚 2 | SW1 — Buck 1 switching node |
| 引脚 3 | SW1 — Buck 1 switching node |
| 引脚 4 | BST1 — Buck 1 bootstrap capacitor |
| 引脚 5 | VIN1 — Buck 1 input supply |
| 引脚 6 | EN1 — Buck 1 enable input |
| 引脚 7 | FB1 — Buck 1 feedback voltage |
| 引脚 8 | COMP1 — Buck 1 compensation network |
| 引脚 9 | PGND — Power ground |
| 引脚 10 | SW2 — Buck 2 switching node |
| 引脚 11 | SW2 — Buck 2 switching node |
| 引脚 12 | BST2 — Buck 2 bootstrap capacitor |
| 引脚 13 | VIN2 — Buck 2 input supply |
| 引脚 14 | EN2 — Buck 2 enable input |
| 引脚 15 | FB2 — Buck 2 feedback voltage |
| 引脚 16 | COMP2 — Buck 2 compensation network |
| 引脚 17 | PGND — Power ground |
| 引脚 18 | SW3 — Buck 3 switching node |
| 引脚 19 | SW3 — Buck 3 switching node |
| 引脚 20 | BST3 — Buck 3 bootstrap capacitor |
| 引脚 21 | VIN3 — Buck 3 input supply |
| 引脚 22 | EN3 — Buck 3 enable input |
| 引脚 23 | FB3 — Buck 3 feedback voltage |
| 引脚 24 | COMP3 — Buck 3 compensation network |
| 引脚 25 | LDO1IN — LDO 1 input |
| 引脚 26 | LDO1OUT — LDO 1 output |
| 引脚 27 | LDO2IN — LDO 2 input |
| 引脚 28 | LDO2OUT — LDO 2 output |
| 引脚 29 | LDO3IN — LDO 3 input |
| 引脚 30 | LDO3OUT — LDO 3 output |
| 引脚 31 | BST_BOOST — Boost bootstrap capacitor |
| 引脚 32 | SW_BOOST — Boost switching node |
| 引脚 33 | VIN_BOOST — Boost input supply |
| 引脚 34 | VOUT_BOOST — Boost output |
| 引脚 35 | PGND — Power ground |
| 引脚 36 | SDA — I2C data |
| 引脚 37 | SCL — I2C clock |
| 引脚 38 | INT — Interrupt output (active low) |
| 引脚 39 | PGOOD — Power-good output |
| 引脚 40 | RESET — Reset input (active low) |
| 引脚 41 | SEQ — Sequencing configuration |
| 引脚 42 | AGND — Analog ground |
| 引脚 43 | VREF — Internal reference bypass |
| 引脚 44 | VSYS — System voltage sense |
| 引脚 45 | NC — Not connected |
| 引脚 46 | NC — Not connected |
| 引脚 47 | VIN — Main input supply |
| 引脚 48 | VIN — Main input supply |
典型应用
TPS65218B1PHPR 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： TPS65218B1PHPR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Pin-compatible upgrade path to -D0 revision （对比 TPS65218D0PHPR)
- VQFN package variant for space-constrained designs （对比 TPS65218B1RSLR)
- Industrial temperature grade vs commercial parts （对比 TPS65218B1PHPT)
设计说明
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.
合规信息
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.
