LTM4676IY#PBF - Dual 13A μModule Regulator | Analog Devices
料号： LTM4676IY#PBF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $42.5 | $42.50 |
| 10 | $38.25 | $382.50 |
| 100 | $34 | $3,400.00 |
| 500 | $30.6 | $15,300.00 |
| 1,000 | $27.2 | $27,200.00 |
LTM4676IY#PBF 概述
A μModule (micromodule) is a complete power management solution in a single package, combining the DC/DC controller, power stage, inductors, and compensation into one device. This approach reduces design complexity, minimizes external components, and accelerates time-to-market. The LTM4676IY#PBF belongs to the family of digital power system management modules, which allow remote configuration and telemetry monitoring via the PMBus interface, an open standard I2C-based digital protocol. This enables real-time control of output voltages, current limits, and fault thresholds, as well as monitoring of input/output voltages, currents, and temperatures.
Key features include PMBus-compliant digital interface for remote configurability and telemetry, dual 13A or single 26A output capability, wide input voltage range of 4.5V to 26.5V, and adjustable output voltage from 0.5V to 5.4V. The module also features a 40ms turn-on time, which is beneficial for sequencing in multi-rail systems. The BGA package with 144 terminals provides excellent thermal performance, and the operating temperature range of -40°C to +125°C makes it suitable for industrial and automotive applications.
Technically, the LTM4676IY#PBF uses a current-mode control architecture with integrated power MOSFETs and inductors, achieving high efficiency across a wide load range. The digital interface allows precise voltage margining and sequencing, which is critical for powering FPGAs, ASICs, and processors that require multiple supply rails with specific power-up sequences. The module also includes protection features such as overcurrent, overvoltage, and overtemperature shutdown.
Typical applications include high-performance computing, data center servers, networking equipment, and industrial systems where high current density and digital power management are required. The module's ability to deliver 26A in a single output configuration makes it ideal for powering high-end CPUs and GPUs.
When designing with this module, ensure adequate input and output capacitance to handle transient loads and maintain stability. The PMBus interface requires pull-up resistors on the SDA and SCL lines, and proper address configuration to avoid conflicts on the bus.
直接替换替代料： LTM4676IY#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： LTM4676IY#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：
LTM4676AEY#PBF
✅ 直接替换📋 参考替代料（不在目录中）
LTM4676IY#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）
LTM4630AEY#PBF
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LTM4630
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LTM4676IY#PBF 最大额定值与电气特性
| 输出类型 | Dual |
| 输出电压范围 | 0.5 V to 5.4 V |
| 最大输出电流 | 13 A per channel, 26 A single |
| 输入电压范围 | 4.5 V to 26.5 V |
| 开关频率 | Up to 1 MHz |
| 输出数量 | 2 |
| 封装 | BGA-144 |
| Terminals | 144 |
| Seated Height | 5.21 mm |
| 工作温度 | -40°C to +125°C |
| 安装类型 | Surface Mount |
| Control Interface | PMBus |
| Turn-On Time | 40 ms |
| RoHS 状态 | Compliant |
| Temperature Grade | Automotive |
LTM4676IY#PBF 引脚配置
| 引脚 A1 | VIN — Input voltage |
| 引脚 A2 | VOUT1 — Output 1 |
| 引脚 A3 | VOUT2 — Output 2 |
| 引脚 B1 | GND — Ground |
| 引脚 B2 | SDA — PMBus data |
| 引脚 B3 | SCL — PMBus clock |
| 引脚 C1 | RUN — Enable |
| 引脚 C2 | PGOOD — Power good |
| 引脚 C3 | VOUT_SENSE — Output sense |
典型应用
LTM4676IY#PBF 适用于 6 应用s: High-Performance Computing, Networking Equipment, Industrial Automation, Telecommunications, Data Center Power, Automotive Electronics.
High-Performance Computing
The LTM4676IY#PBF provides dual 13A outputs with digital power management, ideal for powering CPUs, GPUs, and FPGAs in servers and data centers. Its PMBus interface enables precise voltage margining and sequencing, ensuring reliable operation of high-current loads. The wide input range and high efficiency reduce thermal stress in dense computing environments.
推荐
Networking Equipment
In networking switches and routers, the LTM4676IY#PBF powers high-speed ASICs and line cards with its dual 13A outputs. The PMBus interface allows remote monitoring of power consumption and temperature, enabling proactive management of network infrastructure. Its compact BGA package saves board space in dense line card designs.
推荐
Industrial Automation
The LTM4676IY#PBF is suitable for industrial control systems requiring multiple voltage rails with precise sequencing. Its wide input voltage range (4.5V to 26.5V) accommodates 24V industrial buses, and the -40°C to +125°C operating range ensures reliability in harsh environments. The PMBus interface enables remote configuration and fault monitoring in automated factories.
推荐
Telecommunications
In telecom base stations and central offices, the LTM4676IY#PBF provides efficient power conversion for digital signal processors and RF transceivers. Its dual outputs can power separate rails for analog and digital sections, while the PMBus interface allows remote monitoring of power health. The module's high efficiency reduces cooling requirements in outdoor enclosures.
推荐
Data Center Power
The LTM4676IY#PBF is ideal for data center power distribution, providing high-density, digitally managed power for servers and storage systems. Its PMBus interface enables real-time telemetry for power capping and efficiency optimization. The module's 26A single-output configuration can power high-end processors, while the dual configuration supports multiple rails.
推荐
Automotive Electronics
With its automotive temperature grade and wide input range, the LTM4676IY#PBF is suitable for automotive power management in infotainment, ADAS, and body control modules. The PMBus interface allows for in-vehicle diagnostics and firmware updates. The module's robust design withstands vibration and temperature extremes.
推荐
推荐产品汇总
工程参考数据： LTM4676IY#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 | LTM4676AEY#PBF | LTM4676A | LTM4630AEY#PBF |
|---|---|---|---|---|
| Package | BGA-144 | BGA-144 | BGA-144 | BGA-144 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Output Current per Channel | 13A | 13A | 13A | 18A |
| Input Voltage Range | 4.5V to 26.5V | 4.5V to 26.5V | 4.5V to 26.5V | 4.5V to 15V |
| Output Voltage Range | 0.5V to 5.4V | 0.5V to 5.4V | 0.5V to 5.4V | 0.6V to 5.3V |
| Switching Frequency | Up to 1MHz | Up to 1MHz | Up to 1MHz | Up to 1MHz |
| Turn-On Time | Standard | 40ms | 40ms | Standard |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
关键差异点
- Digital power management with PMBus （对比 LTM4630AEY#PBF)
- Wide input voltage range （对比 LTM4630AEY#PBF)
- Automotive temperature grade （对比 LTM4676AEY#PBF)
设计说明
Place input and output capacitors close to the module pins to minimize parasitic inductance. Use low-ESR ceramic capacitors (e.g., 10µF) for input and output. For high-current applications, multiple capacitors in parallel are recommended to handle ripple current.
The BGA-144 package has a thermal pad on the bottom. Ensure proper thermal vias and a copper pour on the PCB to dissipate heat. For 26A output, consider forced airflow or a heatsink to keep junction temperature within limits.
Keep the PMBus traces (SDA, SCL) short and away from high-current switching nodes to avoid noise. Add pull-up resistors (e.g., 4.7kΩ) to the PMBus lines. Route sense lines as differential pairs to the load for accurate voltage sensing.
合规信息
RoHS compliant per distributor data. Automotive temperature grade but not AEC-Q100 qualified.
