LTC3372MPUH#TR - 60V Low IQ Buck Controller + 4-Channel 8A Configurable Buck DC/DCs | Analog Devices
N.º da peça: LTC3372MPUH#TR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $12.5 | $12,50 |
| 10 | $11.25 | $112,50 |
| 100 | $10 | $1.000,00 |
| 500 | $9 | $4.500,00 |
| 1.000 | $8.1 | $8.100,00 |
LTC3372MPUH#TR Visão geral
A multioutput power supply IC is a single integrated circuit that provides multiple regulated voltage rails from one or more input sources. It typically combines a controller for an external high-voltage stage with integrated low-voltage converters, enabling efficient power distribution in complex systems. In the hierarchy of power management, it sits above individual DC-DC converters, offering a complete power solution that reduces component count and board space.
Key features include a wide input voltage range of 4.5V to 60V for the HV controller, low quiescent current for battery-powered applications, and four configurable LV buck converters with up to 8A total output current. The device supports multiple output configurations, allowing designers to tailor the power architecture to specific needs. Its high efficiency and low IQ make it ideal for always-on systems.
Technically, the LTC3372 employs a current-mode control architecture for fast transient response and stable operation. The HV controller drives external N-channel MOSFETs, enabling high-power step-down conversion from elevated input voltages. The LV converters are fully integrated with internal power switches, simplifying design and reducing external component count. The device includes comprehensive protection features such as overcurrent and overtemperature shutdown.
Typical applications include industrial power supplies, automotive infotainment systems, telecom equipment, and distributed power architectures. Its ability to handle high input voltages and provide multiple regulated outputs makes it suitable for systems requiring multiple supply rails from a single source.
When designing with the LTC3372, careful attention must be paid to PCB layout for the high-current paths and the HV controller's gate drive signals. Proper decoupling and thermal management are essential to ensure reliable operation at maximum load.
Alternativas drop-in para LTC3372MPUH#TR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com LTC3372MPUH#TR (mesmo formato e footprint) — diferindo em Synchronous Rectification, Control Architecture, Package, RoHS Status, Input Voltage Range (HV Controller).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
LTC3372EUH#TR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
LTC3372IUH#TR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
LTC3372MPUH#PBF
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$7.9 / unidade
Ver ficha técnica →LTC3372EUH#PBF
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$8.1 / unidade
Ver ficha técnica →LTC3372IUH#PBF
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$8.15 / unidade
Ver ficha técnica →LTC3372MPUH#TR Classificações máximas e características elétricas
| Input Voltage Range (HV Controller) | 4.5 V to 60 V |
| Number of LV Buck Converters | 4 |
| Total Output Current (LV) | 8 A |
| Output Current per Channel | Configurable up to 8 A |
| Temperatura de junção de operação | -40°C to 125°C |
| Encapsulamento | 44-pin QFN |
| Tipo de montagem | Surface Mount |
| Control Architecture | Current Mode |
| External FETs | All N-Channel |
| Protection Features | Overcurrent, Overtemperature |
| Status RoHS | Compliant |
| REACH Status | Compliant |
Configuração de pinos do LTC3372MPUH#TR
| Pino 1 | HVIN — High-voltage input for controller |
| Pino 2 | HVGATE — Gate drive for external N-channel FET |
| Pino 3 | HVFB — Feedback for HV controller |
| Pino 4 | LVIN1 — Input for LV buck converter 1 |
| Pino 5 | LVSW1 — Switch node for LV buck 1 |
| Pino 6 | LVFB1 — Feedback for LV buck 1 |
| Pino 7 | LVIN2 — Input for LV buck converter 2 |
| Pino 8 | LVSW2 — Switch node for LV buck 2 |
| Pino 9 | LVFB2 — Feedback for LV buck 2 |
| Pino 10 | LVIN3 — Input for LV buck converter 3 |
| Pino 11 | LVSW3 — Switch node for LV buck 3 |
| Pino 12 | LVFB3 — Feedback for LV buck 3 |
| Pino 13 | LVIN4 — Input for LV buck converter 4 |
| Pino 14 | LVSW4 — Switch node for LV buck 4 |
| Pino 15 | LVFB4 — Feedback for LV buck 4 |
| Pino 16 | GND — Ground |
| Pino 17 | EN — Enable pin |
| Pino 18 | MODE — Mode selection |
| Pino 19 | SYNC — External clock sync |
| Pino 20 | VCC — Internal supply |
Aplicações típicas
LTC3372MPUH#TR é adequado para 6 aplicaçãos: Industrial Power Supplies, Automotive Infotainment, Telecom Equipment, Distributed Power Architectures, Battery-Powered Systems, FPGA Power Solutions.
Industrial Power Supplies
The LTC3372MPUH#TR's 60V input capability and multiple outputs make it ideal for industrial power supplies that need to generate multiple rails from a high-voltage bus. Its high efficiency reduces heat dissipation, and the configurable outputs allow flexible voltage/current combinations. The wide temperature range ensures reliable operation in factory environments.
Recomendado
Automotive Infotainment
In automotive infotainment systems, the LTC3372MPUH#TR provides multiple regulated rails for processors, displays, and audio from a 12V battery. Its wide input range handles load dumps and cranking conditions, while the low quiescent current supports always-on features. The -40°C to 125°C temperature range meets automotive requirements.
Recomendado
Telecom Equipment
Telecom equipment often operates from 48V backplanes, and the LTC3372MPUH#TR's 60V input directly handles this. It generates multiple low-voltage rails for FPGAs, ASICs, and line cards. The high efficiency reduces cooling requirements, and the configurable outputs adapt to different board designs.
Recomendado
Distributed Power Architectures
The LTC3372MPUH#TR is well-suited for distributed power architectures where a high-voltage bus is stepped down to multiple point-of-load rails. Its HV controller drives external FETs for high-power conversion, while the integrated LV converters handle lower-power rails. This reduces component count and improves efficiency.
Recomendado
Battery-Powered Systems
With its low quiescent current, the LTC3372MPUH#TR is suitable for battery-powered systems that require multiple rails, such as portable instruments. The wide input range accommodates battery voltage variations, and the high efficiency extends battery life. The configurable outputs allow optimization for different load profiles.
Recomendado
FPGA Power Solutions
FPGAs require multiple voltage rails (core, I/O, auxiliary) with precise sequencing. The LTC3372MPUH#TR provides up to four configurable outputs that can be sequenced to meet FPGA power-up requirements. Its high efficiency and small footprint make it ideal for dense FPGA boards.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para LTC3372MPUH#TR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | LTC3372EUH#TR | LTC3372IUH#TR | LTC3372MPUH#PBF |
|---|---|---|---|---|
| Package | 44-pin QFN | 44-pin QFN | 44-pin QFN | 44-pin QFN |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Temperature Grade | -40°C to 125°C | 0°C to 85°C | -40°C to 85°C | -40°C to 125°C |
| Lead-Free | Yes (RoHS) | Yes | Yes | Yes |
| Input Voltage Range | 4.5V to 60V | 4.5V to 60V | 4.5V to 60V | 4.5V to 60V |
| Number of Outputs | 1 HV + 4 LV | 1 HV + 4 LV | 1 HV + 4 LV | 1 HV + 4 LV |
| Total Output Current | 8A (LV) | 8A | 8A | 8A |
| Quiescent Current | Low IQ | Low IQ | Low IQ | Low IQ |
Principais diferenciais
- Extended temperature range (-40°C to 125°C) (vs LTC3372EUH#TR)
- High-voltage controller with 60V input (vs LTC3372EUH#TR)
- Low quiescent current for battery operation (vs LTC3372EUH#TR)
Notas de projeto
For the high-current LV buck converters, use wide copper traces and multiple vias for the switch nodes and ground. Place input and output capacitors close to the IC pins to minimize parasitic inductance. The HV controller's gate drive traces should be short and direct to the external FETs to reduce ringing.
The LTC3372MPUH#TR can dissipate significant power when delivering 8A from the LV converters. Ensure adequate thermal vias under the exposed pad and a sufficient copper area for heat spreading. For high ambient temperatures, consider forced airflow or a heatsink.
Do not exceed the absolute maximum input voltage of 60V on the HV pin. Ensure the external FETs are rated for the maximum input voltage and have appropriate gate drive. The feedback resistors for each output must be placed close to the IC to avoid noise pickup.
Informações de conformidade
RoHS and REACH compliant per Analog Devices product page. Not AEC-Q100 qualified; for automotive, verify with manufacturer.
