LTM4676IY#PBF - Dual 13A μModule Regulator | Analog Devices
MPN: LTM4676IY#PBF ✓ Hoạt độngLTM4676IY#PBF Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho LTM4676IY#PBF — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với LTM4676IY#PBF (cùng hình factor và footprint) — khác nhau ở Input Voltage Range, Output Voltage Range, Maximum Output Current, Operating Temperature, Package.
LTM4676AEY#PBF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LTM4676IY#PBF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LTM4676A
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LTM4676
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LTM4630AEY#PBF
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LTM4630
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LTM4676IY#PBF Tỷ lệ tối đa & tính chất điện
| Kiểu đầu ra | Dual |
| Khoảng điện áp đầu ra | 0.5 V to 5.4 V |
| Điện áp tối đa đầu ra | 13 A per channel, 26 A single |
| Phạm vi điện áp đầu vào | 4.5 V to 26.5 V |
| Tần số chuyển đổi | Up to 1 MHz |
| Số lượng đầu ra | 2 |
| Hộp | BGA-144 |
| Terminals | 144 |
| Seated Height | 5.21 mm |
| Nhiệt độ hoạt động | -40°C to +125°C |
| Kiểu lắp đặt | Surface Mount |
| Control Interface | PMBus |
| Turn-On Time | 40 ms |
| Trạng thái RoHS | Compliant |
| Temperature Grade | Automotive |
Cấu hình chân LTM4676IY#PBF
| Chân A1 | VIN — Input voltage |
| Chân A2 | VOUT1 — Output 1 |
| Chân A3 | VOUT2 — Output 2 |
| Chân B1 | GND — Ground |
| Chân B2 | SDA — PMBus data |
| Chân B3 | SCL — PMBus clock |
| Chân C1 | RUN — Enable |
| Chân C2 | PGOOD — Power good |
| Chân C3 | VOUT_SENSE — Output sense |
Ứng dụng tiêu biểu
LTM4676IY#PBF phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LTM4676IY#PBF — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Digital power management with PMBus (vsLTM4630AEY#PBF)
- Wide input voltage range (vsLTM4630AEY#PBF)
- Automotive temperature grade (vsLTM4676AEY#PBF)
Ghi chú thiết kế
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.
Thông tin tuân thủ
RoHS compliant per distributor data. Automotive temperature grade but not AEC-Q100 qualified.
