LTM4650EY#PBF - Dual 25A or Single 50A μModule Regulator | Analog Devices
MPN: LTM4650EY#PBF ✓ Hoạt độngLTM4650EY#PBF Tóm tắt
A μModule regulator is a complete DC/DC converter system-in-package that includes the controller, power transistors, inductors, and compensation circuitry, reducing design complexity and time-to-market. It belongs to the broader category of switching regulators, which are more efficient than linear regulators for high-current applications. The LTM4650 leverages this integration to deliver up to 50A from a single module, simplifying thermal management and layout.
Key features include dual 25A outputs (or single 50A in parallel), 4.5V to 15V input range, 0.6V to 1.8V output range, and a switching frequency that can be synchronized to an external clock. It supports multi-phase operation for higher current, Burst Mode operation for light-load efficiency, and output voltage tracking for supply rail sequencing. The module also includes an onboard temperature diode for monitoring device temperature.
Technically, the LTM4650 uses a current-mode control architecture with internal compensation, ensuring stable operation with minimal external components. The integrated inductors and power FETs are optimized for low loss and high efficiency, achieving up to 90% efficiency at full load. The BGA package provides excellent thermal performance with a low thermal resistance from junction to case, enabling operation at high ambient temperatures with appropriate derating.
Typical applications include high-current FPGA, ASIC, and processor core supplies, where the module's high efficiency and small footprint are essential. It is also used in telecom, networking, and industrial systems requiring multiple low-voltage rails. The LTM4650's ability to parallel outputs makes it suitable for applications needing up to 50A from a single module.
When designing with the LTM4650, ensure adequate input and output capacitance as specified in the datasheet to maintain stability and transient response. The module's exposed pad should be soldered to a large copper area for heat dissipation. Also, consider the derating curve for output current versus ambient temperature to ensure reliable operation.
Bộ thay thế dễ dàng lắp đặt cho LTM4650EY#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 LTM4650EY#PBF (cùng hình factor và footprint) — khác nhau ở Maximum Output Current, Output Type, Output Voltage Range, Package.
LTM4650IY#PBF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LTM4650EY-1A#PBF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LTM4650EY-1B#PBF
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LTM4650AIY#PBF
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LTM4630EY#PBF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LTM4620EY#PBF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LTM4650EY#PBF Tỷ lệ tối đa & tính chất điện
| Kiểu đầu ra | Adjustable |
| Khoảng điện áp đầu ra | 0.6 V to 1.8 V |
| Điện áp tối đa đầu ra | 25 A per channel, 50 A single |
| Phạm vi điện áp đầu vào | 4.5 V to 15 V |
| Số lượng đầu ra | 2 |
| Nhiệt độ hoạt động | 0°C to 125°C (internal) |
| Hộp | BGA-144 |
| Kiểu lắp đặt | Surface Mount |
| Size / Dimension | 16mm x 16mm x 5.01mm |
| Trạng thái RoHS | Compliant |
| Synchronization | Yes |
| Multi-Phase Operation | Yes |
| Burst Mode Operation | Yes |
| Output Voltage Tracking | Yes |
| Temperature Diode | Yes |
Cấu hình chân LTM4650EY#PBF
| Chân A1 | VIN — Input supply |
| Chân A2 | VIN — Input supply |
| Chân B1 | VOUT1 — Output 1 |
| Chân B2 | VOUT1 — Output 1 |
| Chân C1 | VOUT2 — Output 2 |
| Chân C2 | VOUT2 — Output 2 |
| Chân D1 | GND — Ground |
| Chân D2 | GND — Ground |
| Chân E1 | RUN1 — Enable for output 1 |
| Chân E2 | RUN2 — Enable for output 2 |
| Chân F1 | TRACK1 — Tracking for output 1 |
| Chân F2 | TRACK2 — Tracking for output 2 |
| Chân G1 | SYNC — Frequency synchronization |
| Chân G2 | PHMODE — Phase mode selection |
| Chân H1 | TEMP — Temperature diode anode |
| Chân H2 | TEMP — Temperature diode cathode |
Ứng dụng tiêu biểu
LTM4650EY#PBF phù hợp cho 6 Áp dụngs: FPGA Core Power, ASIC Core Supply, Telecom and Networking Equipment, Industrial Power Supplies, Data Center and Server Power, Automotive Infotainment.
FPGA Core Power
The LTM4650EY#PBF provides dual 25A or single 50A output with 0.6V to 1.8V adjustable range, ideal for powering high-performance FPGA cores. Its high efficiency and integrated inductors reduce board space and thermal design complexity. The module supports output voltage tracking and sequencing, which is critical for FPGA power-up sequences. With input range of 4.5V to 15V, it can be powered from common 12V rails. The compact BGA package enables dense layouts, and the integrated temperature diode allows monitoring for thermal management.
Được đề xuất
ASIC Core Supply
The LTM4650EY#PBF is suitable for ASIC core supplies requiring up to 50A at low voltages (0.6V to 1.8V). Its dual-channel architecture allows independent rails or paralleled for higher current. The module's high efficiency reduces heat dissipation, and the integrated inductors simplify layout. The wide input range accommodates various intermediate bus voltages. The device supports frequency synchronization and multi-phase operation for scalable power delivery. The BGA package with exposed pad ensures good thermal transfer to the PCB.
Được đề xuất
Telecom and Networking Equipment
In telecom and networking systems, the LTM4650EY#PBF provides efficient point-of-load conversion from 12V or 5V rails to low-voltage core supplies. Its high current capability supports multiple ASICs and FPGAs. The module's small footprint and integrated components save board space, critical in dense line cards. The device's ability to synchronize to an external clock reduces EMI and enables multi-phase operation for higher currents. The wide input range and robust thermal performance make it suitable for harsh environments.
Được đề xuất
Industrial Power Supplies
The LTM4650EY#PBF is used in industrial power supplies where reliability and efficiency are paramount. Its input range of 4.5V to 15V allows operation from 12V or 24V (with pre-regulation) buses. The module's high efficiency reduces cooling requirements, and the integrated inductors minimize external component count. The device supports output voltage tracking for sequenced power-up in multi-rail systems. The BGA package provides robust mechanical and thermal performance in vibration-prone environments.
Được đề xuất
Data Center and Server Power
In data centers and servers, the LTM4650EY#PBF powers high-current CPUs, GPUs, and memory rails. Its dual 25A outputs can be paralleled for 50A, meeting the demands of modern processors. The module's high efficiency reduces energy costs and cooling load. The compact BGA package allows high-density board designs. The device supports multi-phase operation for even higher currents and frequency synchronization to reduce EMI. The integrated temperature diode enables thermal monitoring for reliable operation.
Được đề xuất
Automotive Infotainment
The LTM4650EY#PBF is used in automotive infotainment systems to power application processors and graphics chips. Its input range of 4.5V to 15V is compatible with automotive battery voltages (12V). The module's high efficiency and small footprint are ideal for space-constrained dashboards. The device supports output voltage tracking for proper power sequencing. The BGA package with exposed pad ensures reliable thermal performance in high-temperature environments. The E-grade is suitable for non-automotive temperature ranges; for automotive, consider the I-grade or MP-grade.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LTM4650EY#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 | LTM4650IY#PBF | LTM4650EY-1A#PBF | LTM4630EY#PBF | LTM4620EY#PBF |
|---|---|---|---|---|---|
| Package | BGA-144 | BGA-144 | BGA-144 | BGA-144 | BGA-144 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Output Current (per channel) | 25A | 25A | 25A | 18A | 13A |
| Output Voltage Range | 0.6V to 1.8V | 0.6V to 1.8V | 0.6V to 1.8V | 0.6V to 1.8V | 0.6V to 1.8V |
| Input Voltage Range | 4.5V to 15V | 4.5V to 15V | 4.5V to 15V | 4.5V to 15V | 4.5V to 15V |
| Operating Temperature | 0°C to 125°C | -40°C to 125°C | 0°C to 125°C | 0°C to 125°C | 0°C to 125°C |
Bảo phân biệt quan trọng
- Highest output current in the LTM46xx family (vsLTM4630EY#PBF)
- Pin-compatible with LTM4620 and LTM4630 (vsLTM4620EY#PBF)
- Integrated inductors and FETs (vsDiscrete buck converter solutions)
Ghi chú thiết kế
The LTM4650EY#PBF can dissipate significant power at high currents. Ensure adequate PCB copper area and thermal vias under the BGA package to keep the junction temperature within limits. The datasheet provides derating curves for output current vs. ambient temperature. For 50A operation, consider forced airflow or a heatsink to maintain reliability.
Place input and output capacitors close to the module pins to minimize parasitic inductance. Use low-ESR ceramic capacitors as specified in the datasheet. For high-current paths, use wide traces or copper pours to reduce resistance and voltage drops. Follow the recommended layout in the datasheet for optimal performance.
Do not exceed the maximum input voltage of 15V. Ensure the output voltage setting resistors are accurate (1% or better) to maintain regulation. When paralleling outputs, follow the datasheet's current sharing guidelines. Also, verify the operating temperature range: the E-grade is specified from 0°C to 125°C internal; for -40°C operation, use the I-grade version.
Thông tin tuân thủ
RoHS compliant per distributor listings. Lead-free (Pb-free) indicated by #PBF suffix. AEC-Q100 not applicable as this is a module, not an IC.
