LTM4676MPY#PBF - Dual 13A μModule Regulator | Analog Devices
料号： LTM4676MPY#PBF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $45.32 | $45.32 |
| 10 | $41.87 | $418.70 |
| 100 | $38.42 | $3,842.00 |
| 500 | $35.1 | $17,550.00 |
| 1,000 | $32.75 | $32,750.00 |
LTM4676MPY#PBF 概述
A μModule regulator is a complete DC/DC power supply in a single package, combining the controller, power switches, inductors, and compensation circuitry to simplify design and reduce board space. It belongs to the hierarchy: μModule regulator -> DC/DC converter -> power management IC -> semiconductor. This integration eliminates the need for external inductor selection and loop compensation, significantly reducing design risk and time-to-market.
Key features include dual 13A or single 26A output capability, PMBus digital interface for configuration and telemetry, and a wide input voltage range of 4.5V to 26.5V. The device supports output voltages from 0.5V to 5.4V, making it suitable for powering FPGAs, ASICs, and processors. The LTM4676MPY#PBF is the military-grade version, guaranteed to meet performance specifications over the -55°C to 125°C internal operating temperature range, ensuring reliability in harsh environments.
Technically, the LTM4676 integrates high-efficiency power stage with digital power system management, allowing real-time monitoring of output voltage, current, and temperature. The PMBus interface enables remote configuration of output voltage, current limits, and sequencing, which is essential for complex multi-rail systems. The device also features fast analog control loops for excellent transient response, and its EEPROM stores configuration data for autonomous startup.
Typical applications include high-performance computing, data center servers, telecommunications equipment, and industrial systems where precise voltage regulation and digital management are required. The wide input range and high output current make it ideal for powering FPGAs, GPUs, and network processors.
When designing with this device, ensure adequate thermal management due to high power dissipation. The BGA package requires a thermal pad connection to a large copper area for heat spreading. Also, configure the PMBus parameters carefully to match the load requirements and sequencing needs.
直接替换替代料： LTM4676MPY#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： LTM4676MPY#PBF （相同外形与封装尺寸） ——差异在于 Input Voltage Range, Output Voltage Range, Maximum Output Current, Operating Temperature, Package.
快速对比工具——选择替代料号进行并排对比：
LTM4676IY#PBF
✅ 直接替换✓ 有现货
$27.2 / 个
查看数据手册 →LTM4676AIY#PBF
✅ 直接替换📋 参考替代料（不在目录中）
LTM4676AEY#PBF
✅ 直接替换📋 参考替代料（不在目录中）
LTM4676EY#PBF
✅ 直接替换✓ 有现货
$27.2 / 个
查看数据手册 →LTM4676A
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LTM4676
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LTM4676MPY#PBF 最大额定值与电气特性
| 输出配置 | Dual 13A or Single 26A |
| 输入电压范围 | 4.5V to 26.5V |
| 输出电压范围 | 0.5V to 5.4V |
| Maximum Output Current per Channel | 13A |
| 输出数量 | 2 |
| 接口 | PMBus (I2C-based) |
| 工作温度范围 | -55°C to 125°C (internal) |
| Package Type | BGA |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| 特性 | Digital Power System Management, Telemetry Monitoring, EEPROM |
LTM4676MPY#PBF 引脚配置
| 引脚 A1 | VIN — Input voltage |
| 引脚 B1 | VOUT1 — Output 1 |
| 引脚 C1 | VOUT2 — Output 2 |
| 引脚 D1 | GND — Ground |
| 引脚 E1 | PMBUS — PMBus data |
| 引脚 F1 | PMBUS_CLK — PMBus clock |
| 引脚 G1 | RUN — Enable |
| 引脚 H1 | VDD — Internal supply |
典型应用
LTM4676MPY#PBF 适用于 6 应用s: High-Performance Computing, Telecommunications Equipment, Industrial Automation, Aerospace and Defense, Data Center Power, Medical Imaging Systems.
High-Performance Computing
The LTM4676MPY#PBF provides dual 13A rails for FPGAs, ASICs, and processors in servers and data centers. Its PMBus interface enables precise voltage scaling and telemetry for energy-efficient operation. The wide input range (4.5V-26.5V) accommodates various backplane voltages, while the high output current supports demanding compute loads. The integrated inductors and MOSFETs reduce board space and design complexity, making it ideal for dense computing platforms.
推荐
Telecommunications Equipment
In telecom base stations and networking gear, the LTM4676MPY#PBF powers line cards and processors with high efficiency and digital control. Its PMBus telemetry allows remote monitoring of power consumption and health, crucial for network reliability. The device's wide input range supports 12V and 24V bus voltages, and its dual outputs can power separate logic and I/O rails. The military temperature range ensures operation in outdoor enclosures.
推荐
Industrial Automation
The LTM4676MPY#PBF is suitable for industrial controllers and robotics, providing stable, digitally managed power for FPGAs and microprocessors. Its wide input range handles 24V industrial supplies, and the PMBus interface allows configuration of voltage and current limits for different loads. The rugged military temperature range (-55°C to 125°C) ensures reliable operation in harsh factory environments. The integrated design reduces component count and improves MTBF.
推荐
Aerospace and Defense
The LTM4676MPY#PBF's military temperature range and high reliability make it ideal for avionics, radar, and satellite systems. It provides dual 13A rails for processors and FPGAs in mission-critical applications. The PMBus interface enables remote configuration and monitoring, essential for system health management. The wide input range supports 28V aircraft buses, and the integrated design withstands vibration and thermal stress.
推荐
Data Center Power
In data centers, the LTM4676MPY#PBF powers servers and storage systems with high efficiency and digital management. Its dual outputs can supply separate CPU and memory rails, while PMBus telemetry enables real-time power monitoring for optimization. The wide input range (4.5V-26.5V) supports various power distribution architectures. The high output current (13A per channel) meets the demands of modern processors.
推荐
Medical Imaging Systems
The LTM4676MPY#PBF provides clean, regulated power for FPGAs and DSPs in MRI, CT, and ultrasound machines. Its low noise and high accuracy are critical for sensitive imaging electronics. The PMBus interface allows precise voltage adjustment and monitoring, ensuring consistent performance. The wide input range accommodates various medical power supplies, and the military temperature range ensures reliability in clinical environments.
推荐
推荐产品汇总
工程参考数据： LTM4676MPY#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 | LTM4676IY#PBF | LTM4676AIY#PBF | LTM4676AEY#PBF |
|---|---|---|---|---|
| Package | BGA | BGA | BGA | BGA |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Input Voltage Range | 4.5V to 26.5V | 4.5V to 26.5V | 4.5V to 26.5V | 4.5V to 26.5V |
| Output Voltage Range | 0.5V to 5.4V | 0.5V to 5.4V | 0.5V to 5.4V | 0.5V to 5.4V |
| Output Current per Channel | 13A | 13A | 13A | 13A |
| Operating Temperature Range | -55°C to 125°C | -40°C to 125°C | -40°C to 125°C | 0°C to 125°C |
| PMBus Interface | Yes | Yes | Yes | Yes |
关键差异点
- Military temperature range (-55°C to 125°C) （对比 LTM4676IY#PBF)
- Dual 13A or single 26A output capability （对比 LTM4676AIY#PBF)
- PMBus digital interface with telemetry （对比 LTM4676EY#PBF)
设计说明
The LTM4676MPY#PBF can dissipate significant power at high output currents. Ensure adequate thermal management by connecting the thermal pad to a large copper area on the PCB. Use multiple vias to transfer heat to inner layers. For dual 13A operation, consider forced air cooling or a heatsink to keep the junction temperature within limits.
Place input and output capacitors close to the module pins to minimize parasitic inductance. Use low-ESR ceramic capacitors for high-frequency decoupling. The BGA package requires careful routing of the PMBus lines to avoid noise. Follow the layout guidelines in the datasheet for optimal performance.
Ensure the PMBus address is correctly configured to avoid conflicts on the bus. Also, verify the EEPROM settings for startup voltage and sequencing. Do not exceed the absolute maximum input voltage of 26.5V. Use proper pull-up resistors on the PMBus lines as specified in the datasheet.
合规信息
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
