LTM4700IY#PBF - Dual 50A/100A µModule Regulator | Analog Devices
MPN： LTM4700IY#PBF ✓ 啟用中LTM4700IY#PBF 概覽
A µModule regulator is a complete power management solution in a single package, combining the DC/DC controller, power stage, inductors, and passives to minimize external components and design risk. It belongs to the hierarchy of power modules, which are part of the broader category of power management ICs. This integration reduces PCB area and simplifies layout, making it ideal for high-density applications.
Key features include dual 50A or single 100A output capability, PMBus digital interface for programming and monitoring, and a wide input voltage range of 4.5V to 16V. The module achieves high efficiency through synchronous step-down architecture and supports output voltage tracking and margining. It also includes fault protection, such as overcurrent and overtemperature shutdown, ensuring reliable operation.
Technically, the LTM4700 uses a constant-frequency current-mode control architecture, enabling stable operation with minimal external compensation. The PMBus interface allows real-time telemetry of output voltage, current, and temperature, as well as configuration of output voltage, sequencing, and fault thresholds. The module is available in the industrial temperature grade (I-grade), guaranteed over -40°C to 125°C internal operating temperature.
Typical applications include high-current FPGA, ASIC, and processor power supplies in networking, data center, and industrial equipment. Its digital power management capabilities make it suitable for systems requiring dynamic voltage scaling, power sequencing, and health monitoring. The module's high efficiency and compact footprint reduce thermal management challenges.
When designing with the LTM4700, ensure adequate input and output capacitance and proper thermal management, as the module can dissipate significant power at high currents. Use the LTpowerPlay GUI for configuration and monitoring via the PMBus interface.
直接替換替代品，適用於 LTM4700IY#PBF — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： LTM4700IY#PBF （相同外形與佔位） — 差異在於 Output Type, Package, Output Voltage Range, Operating Temperature Range, RoHS Status.
LTM4700IY
✅ 直接替換📋 參考替代品（不在目錄中）
LTM4700EY#PBF
✅ 直接替換聯絡詢價
查看資料表 →LTM4700EY
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LTC3882-1#PBF
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →LTC3882-2#PBF
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →LTM4700IY#PBF 最大額定值與電氣特性
| 輸出類型 | Dual (2 outputs) |
| 輸出電壓範圍 | 0.5 V to 1.8 V (each output) |
| 最大輸出電流 | 50 A per channel, 100 A single |
| 輸入電壓範圍 | 4.5 V to 16 V |
| Control Architecture | Constant-frequency current-mode |
| Digital Interface | PMBus (I2C-based) |
| Telemetry Monitoring | Voltage, current, temperature |
| 工作溫度範圍 | -40°C to 125°C (internal) |
| 封裝 | µModule BGA |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| 輸出數量 | 2 |
| Isolation | Non-Isolated PoL Module |
LTM4700IY#PBF 腳位配置
| 腳位 A1 | VIN — Input supply voltage |
| 腳位 B1 | VOUT1 — Output 1 voltage |
| 腳位 C1 | VOUT2 — Output 2 voltage |
| 腳位 D1 | GND — Ground |
| 腳位 E1 | SDA — PMBus data line |
| 腳位 F1 | SCL — PMBus clock line |
| 腳位 G1 | FAULT0 — Fault output 0 |
| 腳位 H1 | FAULT1 — Fault output 1 |
典型應用
LTM4700IY#PBF 適用於 6 應用s: FPGA Power Supplies, ASIC Power Supplies, Data Center Servers, Telecom Equipment, Industrial Automation, Test and Measurement.
FPGA Power Supplies
The LTM4700IY#PBF provides high-current, low-voltage rails for FPGAs, supporting up to 100A with precise regulation. Its PMBus interface enables dynamic voltage scaling and sequencing, essential for modern FPGAs like Xilinx UltraScale+ or Intel Agilex. The module's high efficiency reduces thermal stress, and its compact µModule package saves board space. With 4.5V to 16V input, it can be powered from 12V intermediate bus, delivering 0.5V to 1.8V core voltages. Telemetry monitoring allows real-time health tracking, improving system reliability.
推薦
ASIC Power Supplies
ASICs in networking and data center equipment require high current at low voltages. The LTM4700IY#PBF delivers up to 100A with tight regulation, meeting ASIC core voltage requirements. Its PMBus interface allows fine-tuning of output voltage and monitoring of current and temperature, enabling efficient power management. The module's high efficiency reduces cooling requirements, and its integrated design minimizes external components, accelerating time-to-market. With a 4.5V to 16V input range, it adapts to various power architectures.
推薦
Data Center Servers
In data center servers, the LTM4700IY#PBF powers high-performance processors and memory, providing up to 100A with high efficiency. Its digital power management enables real-time telemetry, allowing data center operators to optimize power usage and improve reliability. The module's compact size supports high-density server designs, and its wide input range accommodates various power distribution architectures. PMBus compatibility ensures seamless integration with existing management systems.
推薦
Telecom Equipment
Telecom infrastructure requires reliable, high-current power supplies. The LTM4700IY#PBF operates from 4.5V to 16V, making it suitable for 12V or 15V telecom rails. It delivers up to 100A with excellent thermal performance, ensuring operation in harsh environments. The PMBus interface allows remote monitoring and control, essential for telecom network management. Its industrial temperature grade (-40°C to 125°C) ensures reliability in outdoor or uncontrolled environments.
推薦
Industrial Automation
Industrial automation systems often require high-current, low-voltage power for processors and FPGAs. The LTM4700IY#PBF provides up to 100A with precise regulation, supporting demanding industrial applications. Its wide input range (4.5V to 16V) allows operation from 12V or 24V industrial supplies. The module's rugged design and industrial temperature grade ensure reliable operation in factory environments. PMBus telemetry enables predictive maintenance and power optimization.
推薦
Test and Measurement
In test and measurement equipment, the LTM4700IY#PBF provides clean, stable power for high-speed ADCs, DACs, and FPGAs. Its low output noise and high PSRR ensure accurate measurements. The module's digital power management allows precise voltage margining and monitoring, essential for calibration and testing. With up to 100A capability, it can power multiple channels simultaneously. The compact µModule package saves space in benchtop instruments.
推薦
推薦產品摘要
工程參考資料，適用於 LTM4700IY#PBF — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | LTM4700IY | LTM4700EY#PBF | LTC3882-1#PBF |
|---|---|---|---|---|
| Package | µModule BGA | µModule BGA | µModule BGA | µModule BGA |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Output Current | 50A per channel, 100A single | 50A per channel, 100A single | 50A per channel, 100A single | 50A per channel, 100A single |
| Input Voltage Range | 4.5V to 16V | 4.5V to 16V | 4.5V to 16V | 4.5V to 16V |
| Output Voltage Range | 0.5V to 1.8V | 0.5V to 1.8V | 0.5V to 1.8V | 0.5V to 1.8V |
| Operating Temperature Range | -40°C to 125°C | -40°C to 125°C | 0°C to 125°C | -40°C to 125°C |
| Digital Interface | PMBus | PMBus | PMBus | PMBus |
| RoHS Compliant | Yes | Yes | Yes | Yes |
主要差異化特點
- Industrial temperature grade (對比LTM4700EY#PBF)
- Lead-free (RoHS compliant) packaging (對比LTM4700IY)
- Higher current capability than LTC3882 (對比LTC3882-1#PBF)
設計說明
The LTM4700IY#PBF can dissipate significant power at high currents. For example, at 100A output and 1V output from 12V input, power loss is approximately 100W. Ensure adequate airflow or heatsinking. The µModule package has an exposed pad for thermal management; connect it to a large copper area on the PCB. Refer to the datasheet for thermal derating curves.
Place input and output capacitors close to the module pins to minimize parasitic inductance. Use multiple vias for high-current paths. Follow the layout guidelines in the datasheet, including proper grounding and decoupling. For PMBus signals, keep traces short and avoid noise sources.
Ensure the PMBus address is correctly configured via pin-strapping resistors. Do not exceed the maximum input voltage of 16V. Use the LTpowerPlay GUI to configure and monitor the module. Verify the output voltage sense connections to avoid errors due to trace resistance.
合規資訊
RoHS compliant per #PBF suffix. Not AEC-Q100 qualified. Other compliance data not specified in provided sources.
