ISL8282MFRZ-T1 - 15A PMBus Step-Down Power Module | Renesas
MPN: ISL8282MFRZ-T1 ✓ Hoạt độngISL8282MFRZ-T1 Tóm tắt
A point-of-load (PoL) DC/DC power module is a device that integrates a switching regulator controller, power MOSFETs, inductor, and most passive components into a single encapsulated package. Within the power management hierarchy, it sits above discrete converters and below complete power supplies, dramatically reducing external component count, design complexity, and board area while guaranteeing optimized internal layout for switching performance.
Key features of the ISL8282M include up to 95% peak conversion efficiency, digital PMBus/SMBus control and telemetry for output voltage adjustment, sequencing, margining, and monitoring, plus integrated LDOs that power internal circuitry. The proprietary Renesas R4 Technology control architecture provides fast transient response and stable operation across the full 0.5V to 5V output range.
Technically, the hybrid digital architecture combines a digital control loop with integrated power stage magnetics in the HDA package, achieving high power density suitable for space-constrained boards. Fully encapsulated construction protects against moisture and mechanical stress, and the thermally enhanced substrate conducts heat to the PCB for convection cooling without a heatsink at moderate loads.
Typical applications include FPGA and ASIC core power rails in networking switches, data-center and server line cards, industrial automation controllers, and wireless infrastructure equipment where digital power telemetry via PMBus is required.
For design, ensure adequate copper area under the module thermal pad to keep junction temperature within limits at high load, and follow the datasheet-recommended external capacitor values for input and output stability.
This page synthesizes distributor pricing, verified alternatives, and practical design guidance not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho ISL8282MFRZ-T1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ISL8282MFRZ-T1 (cùng hình factor và footprint) — khác nhau ở Mounting Type, Topology, Control Type, Digital Interface, Integrated Features.
ISL8281MFRZ-T1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ISL8282MFRZ-T1 Tỷ lệ tối đa & tính chất điện
| Cấu trúc | Non-Isolated PoL Step-Down (Buck) Module |
| Control Type | Digital (PMBus enabled), Renesas R4 Technology |
| Số lượng đầu ra | 1 |
| Phạm vi điện áp đầu vào | 4.5 V to 16.5 V |
| Khoảng điện áp đầu ra | 0.5 V to 5 V |
| Điện áp tối đa đầu ra | 15 A continuous |
| Peak Efficiency | up to 95% |
| Digital Interface | PMBus |
| Integrated LDOs | Yes (internal bias supply) |
| Hộp | HDA-83 (12 x 11 x 5.3 mm), fully encapsulated |
| Kiểu lắp đặt | Surface Mount |
| Package Height | 5.3 mm |
| Package Dimensions | 12 mm x 11 mm |
Hướng dẫn cấu hình chân ISL8282MFRZ-T1 12 mm x 11 mm
Cấu hình chân cho ISL8282MFRZ-T1 (12 mm x 11 mm gói). Động cơ điện này có chân cổng, nguồn và đầu ra. Đối với các gói không phân極, tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết hướng dẫn chính xác của chân 1 và chi tiết về vân footprint. Các ứng dụng phổ biến bao gồm thiết kế nguồn cung cấp điện, điều khiển động cơ và chuyển đổi tải.
Không có dữ liệu chân cụ thể sẵn có cho ISL8282MFRZ-T1.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Khu vực hoạt động an toàn (Estimated - output current derating)
Ứng dụng tiêu biểu
ISL8282MFRZ-T1 phù hợp cho 6 Áp dụngs: FPGA Core Power Supply, Networking Switch and Router Line Cards, Data-Center Server Power, Industrial Automation Controllers, Wireless Infrastructure Equipment, ASIC and Processor Point-of-Load.
FPGA Core Power Supply
The ISL8282MFRZ-T1 is well suited to FPGA core (VCCINT/VCCBRAM) power rails because FPGAs demand high current at low voltages with tight tolerance and fast transient response. With a 0.5V to 5V adjustable output and 15A continuous current, a single module can supply up to 75W, covering most mid-range FPGA core requirements from a 12V intermediate bus. The Renesas R4 Technology digital control loop provides rapid response to load steps, and PMBus telemetry allows the host to monitor voltage and current in real time. Designers should size PCB copper under the thermal pad for the worst-case 15A load and use the PMBus interface for sequencing relative to I/O banks.
Được đề xuất
Networking Switch and Router Line Cards
Line cards in enterprise and data-center switches use 12V intermediate bus architectures feeding multiple point-of-load converters. The ISL8282M's 4.5V to 16.5V input range accepts the 12V bus directly, while its PMBus/SMBus interface integrates with the chassis power-management controller for voltage margining, fault logging, and telemetry-based predictive maintenance. The compact 12 mm x 11 mm x 5.3 mm HDA-83 footprint suits the tight vertical spacing of line-card designs, and up to 95% efficiency reduces the total airflow and heatsinking budget across a card populated with multiple modules.
Được đề xuất
Data-Center Server Power
Server boards require dense, digitally managed PoL conversion for CPUs, ASICs, and memory subsystems. The ISL8282MFRZ-T1 provides 15A continuous output with digital telemetry, enabling the BMC to monitor rail health through PMBus and log faults during operation. Its high power density - 75W capability in a 132 mm2 footprint - helps meet aggressive board-space targets, and the fully encapsulated HDA construction withstands reflow and vibration in high-reliability server environments. Multi-rail sequencing via PMBus simplifies bring-up of complex processor power trees.
Được đề xuất
Industrial Automation Controllers
Industrial PLCs, motor-control boards, and I/O modules commonly run from 24V systems scaled down to 12V intermediates; the ISL8282M converts that 12V rail to the 5V or lower logic supplies required by processors and sensors. The wide 4.5V to 16.5V input tolerates bus transients common in factory environments, and PMBus configuration allows one firmware image to set different output voltages across product variants, reducing BOM diversity. Encapsulated packaging adds robustness against dust and humidity encountered in industrial cabinets, supporting long-term reliability targets.
Được đề xuất
Wireless Infrastructure Equipment
Baseband units and remote radio equipment rely on high-efficiency PoL conversion to minimize thermal load in sealed outdoor enclosures. The ISL8282M's up to 95% efficiency reduces wasted heat, directly lowering cooling requirements for passively cooled outdoor units. The PMBus interface supports remote monitoring of rail voltage, current, and temperature from the system controller, enabling predictive maintenance of tower-mounted equipment where site visits are costly. The 12 mm x 11 mm footprint conserves PCB area in dense radio modems.
Được đề xuất
ASIC and Processor Point-of-Load
Custom ASICs and embedded processors require tightly regulated sub-1V to 5V rails with dynamic voltage scaling. The ISL8282M covers the full 0.5V to 5V output range and supports PMBus-commanded output voltage changes, enabling DVFS power-saving schemes without external DAC circuitry. The integrated LDOs for internal bias reduce external component count, and the R4 digital control maintains stability across output setpoint changes. Designers should validate transient response at their specific load profile using the datasheet evaluation guidelines.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ISL8282MFRZ-T1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ISL8281MFRZ-T1 |
|---|---|---|
| Package | HDA-83 (12 x 11 x 5.3 mm) | HDA-83 (12 x 11 x 5.3 mm) - same |
| Brand | Renesas Electronics | Renesas Electronics - same |
| Maximum Output Current | 15 A | 10 A |
| PMBus Interface | Yes | Yes |
| Control Technology | Renesas R4 digital | Renesas digital control |
Bảo phân biệt quan trọng
- Highest current in the HDA module family (vsISL8281MFRZ-T1)
- Fully integrated hybrid digital design (vsDiscrete buck controller solutions)
- Trade-off: PMBus complexity (vsISL8281MFRZ-T1)
Ghi chú thiết kế
At 15A output with a 5V rail from a 12V input, the ISL8282M dissipates internal power due to conduction and switching losses; at up to 95% peak efficiency this can be roughly 2-4W depending on operating point (Estimated: 75W output / 0.95 efficiency implies ~4W loss worst case). Provide continuous copper pours under the module thermal features on outer and inner layers to spread heat; the fully encapsulated HDA-83 package relies primarily on PCB conduction, not airflow.
Follow the layout guidelines in the 51-page Renesas ISL8282M datasheet: place low-ESR input capacitors close to the VIN pins to suppress input ripple transients, and size output capacitance per the datasheet table for the chosen output voltage and load-step requirement. Connect all GND pins to a solid ground plane with multiple vias to reduce impedance and improve thermal performance.
Use the PMBus interface to configure output voltage rather than assuming a default setpoint - the ISL8282M output must be programmed within the 0.5V to 5V allowed range, and sequencing/margining commands must respect datasheet slew-rate limits. Exceeding the 16.5V maximum input, even transiently, can damage the module; verify upstream bus transients on 12V rails that can legally spike above nominal during fault events.
Thông tin tuân thủ
Compliance status was not stated in the verified web data; consult the Renesas product page certificate documents for RoHS/REACH declarations.
