LTM4680IY#PBF - Dual 30A or Single 60A µModule Regulator | Analog Devices
MPN： LTM4680IY#PBF ✓ 啟用中LTM4680IY#PBF 概覽
A µModule (micro-module) is a complete power management solution that integrates the DC/DC controller, power transistors, inductors, and compensation components into a single package, offering high efficiency and ease of use. The LTM4680 belongs to the family of digital power system management (PSM) modules, which enable real-time monitoring and control of voltage, current, and temperature via PMBus, enhancing system reliability and energy efficiency.
Key features include PMBus-compliant digital interface for configuration and telemetry, dual 30A or single 60A output capability, wide input voltage range of 4.5V to 16V, and adjustable output voltage from 0.5V to 3.3V. The module achieves high efficiency, reducing power loss in demanding applications. It also includes programmable switching frequency, phase interleaving, and fault protection features such as overvoltage, overcurrent, and overtemperature protection.
Technically, the LTM4680 integrates a high-performance synchronous step-down controller with integrated power MOSFETs and inductors, enabling a compact solution with excellent thermal performance. The BGA-144 package provides a low-inductance interconnect and efficient heat spreading, supporting high current density. The digital interface allows precise voltage margining, sequencing, and monitoring, which is essential for complex multi-rail systems.
Typical applications include high-current FPGA, ASIC, and processor power supplies in telecommunications, data center, and industrial equipment, where precise voltage regulation and monitoring are critical. The module's ability to parallel channels for higher current makes it suitable for powering advanced processors and GPUs.
When designing with the LTM4680, ensure adequate input and output capacitance to maintain stability and meet transient requirements. The PMBus interface requires careful layout to avoid noise coupling, and thermal management should consider the module's power dissipation at high loads.
直接替換替代品，適用於 LTM4680IY#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： LTM4680IY#PBF （相同外形與佔位） — 差異在於 Output Type, Output Voltage Range, Package, Isolation, Maximum Output Current.
LTM4680EY#PBF
✅ 直接替換聯絡詢價
查看資料表 →LTM4680IY#PBF/NOPB
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LTM4680IY-XX#PBF
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LTM4650AIY-1#PBF
⚡ 相同封裝📋 參考替代品（不在目錄中）
LTM4676IY#PBF
⚡ 相同封裝聯絡詢價
查看資料表 →LTM4680IY#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 3.3 V per channel |
| 最大輸出電流 | 30 A per channel, 60 A single |
| 輸入電壓範圍 | 4.5 V to 16 V |
| 介面 | PMBus (I2C-based) |
| 封裝 | BGA-144 |
| 安裝類型 | Surface Mount |
| 工作溫度範圍 | -40°C to 125°C (internal) |
| RoHS 狀態 | Compliant |
| 輸出數量 | 2 |
| Isolation | Non-Isolated |
| 控制功能 | Digital Power System Management |
| Protection Features | Overvoltage, Overcurrent, Overtemperature |
LTM4680IY#PBF 腳位配置
| 腳位 A1 | VIN — Input supply voltage |
| 腳位 A2 | VOUT1 — Output 1 voltage |
| 腳位 A3 | VOUT2 — Output 2 voltage |
| 腳位 B1 | GND — Ground |
| 腳位 B2 | SDA — PMBus data line |
| 腳位 B3 | SCL — PMBus clock line |
| 腳位 C1 | ALERT — PMBus alert output |
| 腳位 C2 | RUN — Enable control |
| 腳位 C3 | SYNC — External clock sync |
| 腳位 D1 | VOUTS1 — Output 1 sense |
| 腳位 D2 | VOUTS2 — Output 2 sense |
| 腳位 D3 | VIN_SENSE — Input voltage sense |
典型應用
LTM4680IY#PBF 適用於 6 應用s: FPGA and ASIC Power Supplies, Telecommunications Equipment, Data Center Servers, Industrial Automation, Medical Imaging Systems, Automotive Test Equipment.
FPGA and ASIC Power Supplies
The LTM4680IY#PBF provides high-current, low-voltage rails (0.5V to 3.3V) with PMBus monitoring, ideal for powering FPGAs and ASICs. Its dual 30A outputs can be paralleled for 60A, meeting the demands of high-performance logic devices. The digital interface enables precise voltage margining and sequencing, ensuring reliable operation.
推薦
Telecommunications Equipment
In telecom systems, the LTM4680IY#PBF powers base stations and network processors with high efficiency and remote monitoring. Its wide input range (4.5V to 16V) accommodates various bus voltages, and PMBus telemetry allows real-time health monitoring, reducing downtime and improving system reliability.
推薦
Data Center Servers
The LTM4680IY#PBF is ideal for data center servers requiring high-current, low-voltage power for CPUs and GPUs. Its dual 30A outputs can be configured for 60A, and PMBus enables dynamic voltage scaling and power capping, improving energy efficiency. The compact BGA-144 package saves board space in dense server designs.
推薦
Industrial Automation
In industrial automation, the LTM4680IY#PBF provides robust power for PLCs and motor controllers. Its industrial temperature grade (-40°C to 125°C) ensures reliable operation in harsh environments. PMBus monitoring allows predictive maintenance, and the high efficiency reduces thermal stress in enclosed cabinets.
推薦
Medical Imaging Systems
The LTM4680IY#PBF powers advanced medical imaging equipment such as MRI and CT scanners, where precise voltage regulation is critical. Its low noise and high efficiency ensure stable operation, and PMBus telemetry enables remote diagnostics. The wide input range and high current capability support demanding imaging processors.
推薦
Automotive Test Equipment
The LTM4680IY#PBF is used in automotive test systems requiring high-current, programmable power supplies. Its PMBus interface allows automated voltage margining and monitoring, essential for testing ECUs and infotainment systems. The industrial temperature grade ensures reliability in test environments.
推薦
推薦產品摘要
工程參考資料，適用於 LTM4680IY#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 | LTM4680EY#PBF | LTM4650AIY-1#PBF | LTM4676IY#PBF |
|---|---|---|---|---|
| Package | BGA-144 | BGA-144 | BGA-144 | BGA-144 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Output Current (Max) | 60A (single) | 60A (single) | 50A (single) | 26A (single) |
| Input Voltage Range | 4.5V to 16V | 4.5V to 16V | 4.5V to 16V | 4.5V to 17V |
| Output Voltage Range | 0.5V to 3.3V | 0.5V to 3.3V | 0.5V to 3.3V | 0.5V to 3.3V |
| PMBus Interface | Yes | Yes | Yes | Yes |
| Temperature Grade | Industrial (-40°C to 125°C) | Commercial (0°C to 125°C) | Industrial (-40°C to 125°C) | Industrial (-40°C to 125°C) |
| Number of Outputs | 2 | 2 | 2 | 2 |
主要差異化特點
- Higher output current capability (60A) compared to LTM4650AIY-1#PBF (50A) (對比LTM4650AIY-1#PBF)
- Industrial temperature grade (-40°C to 125°C) vs commercial grade of LTM4680EY#PBF (對比LTM4680EY#PBF)
- Dual 30A outputs with PMBus, offering more flexibility than LTM4676IY#PBF's 26A total (對比LTM4676IY#PBF)
設計說明
Ensure adequate input and output capacitance to handle transient loads. The LTM4680IY#PBF requires low-ESR ceramic capacitors at the input and output to maintain stability and minimize voltage ripple. Refer to the datasheet for recommended capacitor values and placement.
The LTM4680IY#PBF can dissipate significant power at high currents. Use a proper thermal design with adequate PCB copper area and vias to transfer heat away from the BGA-144 package. Consider airflow or heatsinking for applications exceeding 30A per channel.
For PMBus communication, keep SDA and SCL traces short and shielded from noisy power traces. Use pull-up resistors as specified in the datasheet. Place the module close to the load to minimize parasitic inductance and improve transient response.
合規資訊
RoHS compliant per distributor data. Lead-free version available as LTM4680IY#PBF/NOPB.
