LTM4680IY#PBF - Dual 30A or Single 60A µModule Regulator | Analog Devices
料号： LTM4680IY#PBF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $65.13 | $65.13 |
| 10 | $61.5 | $615.00 |
| 100 | $58 | $5,800.00 |
| 500 | $54.5 | $27,250.00 |
| 1,000 | $51 | $51,000.00 |
LTM4680IY#PBF 概述
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.
直接替换替代料： LTM4680IY#PBF ——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： LTM4680IY#PBF （相同外形与封装尺寸） ——差异在于 Output Type, Output Voltage Range, Package, Isolation, Maximum Output Current.
快速对比工具——选择替代料号进行并排对比：
LTM4680EY#PBF
✅ 直接替换✓ 有现货
$32 / 个
查看数据手册 →LTM4680IY#PBF/NOPB
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LTM4680IY-XX#PBF
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LTM4650AIY-1#PBF
⚡ 相同封装📋 参考替代料（不在目录中）
LTM4676IY#PBF
⚡ 相同封装✓ 有现货
$27.2 / 个
查看数据手册 →LTM4680IY#PBF 最大额定值与电气特性
| 输出类型 | Dual (2 outputs) |
| 输出电压范围 | 0.5 V to 3.3 V per channel |
| 最大输出电流 | 30 A per channel, 60 A single |
| 输入电压范围 | 4.5 V to 16 V |
| 接口 | PMBus (I2C-based) |
| 封装 | BGA-144 |
| 安装类型 | Surface Mount |
| 工作温度范围 | -40°C to 125°C (internal) |
| RoHS 状态 | Compliant |
| 输出数量 | 2 |
| Isolation | Non-Isolated |
| 控制特性 | Digital Power System Management |
| Protection Features | Overvoltage, Overcurrent, Overtemperature |
LTM4680IY#PBF 引脚配置
| 引脚 A1 | VIN — Input supply voltage |
| 引脚 A2 | VOUT1 — Output 1 voltage |
| 引脚 A3 | VOUT2 — Output 2 voltage |
| 引脚 B1 | GND — Ground |
| 引脚 B2 | SDA — PMBus data line |
| 引脚 B3 | SCL — PMBus clock line |
| 引脚 C1 | ALERT — PMBus alert output |
| 引脚 C2 | RUN — Enable control |
| 引脚 C3 | SYNC — External clock sync |
| 引脚 D1 | VOUTS1 — Output 1 sense |
| 引脚 D2 | VOUTS2 — Output 2 sense |
| 引脚 D3 | VIN_SENSE — Input voltage sense |
典型应用
LTM4680IY#PBF 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： LTM4680IY#PBF ——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 | 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 |
关键差异点
- Higher output current capability (60A) compared to LTM4650AIY-1#PBF (50A) （对比 LTM4650AIY-1#PBF)
- Industrial temperature grade (-40°C to 125°C) vs commercial grade of LTM4680EY#PBF （对比 LTM4680EY#PBF)
- Dual 30A outputs with PMBus, offering more flexibility than LTM4676IY#PBF's 26A total （对比 LTM4676IY#PBF)
设计说明
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.
合规信息
RoHS compliant per distributor data. Lead-free version available as LTM4680IY#PBF/NOPB.
