LTC3372MPUH#TR - 60V Low IQ Buck Controller + 4-Channel 8A Configurable Buck DC/DCs | Analog Devices
N.º de pieza: LTC3372MPUH#TR ✓ Activo| Cant. | Precio unitario | 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 Descripción general
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 directas para LTC3372MPUH#TR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con LTC3372MPUH#TR (mismo factor de forma y huella) — difiere en Synchronous Rectification, Control Architecture, Package, RoHS Status, Input Voltage Range (HV Controller).
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
LTC3372EUH#TR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LTC3372IUH#TR
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
LTC3372MPUH#PBF
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$7.9 / unidad
Ver hoja de datos →LTC3372EUH#PBF
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$8.1 / unidad
Ver hoja de datos →LTC3372IUH#PBF
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$8.15 / unidad
Ver hoja de datos →LTC3372MPUH#TR Valores máximos y características eléctricas
| 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 unión de funcionamiento | -40°C to 125°C |
| Encapsulado | 44-pin QFN |
| Tipo de montaje | Surface Mount |
| Control Architecture | Current Mode |
| External FETs | All N-Channel |
| Protection Features | Overcurrent, Overtemperature |
| Estado RoHS | Compliant |
| REACH Status | Compliant |
Configuración de pines de LTC3372MPUH#TR
| Pin 1 | HVIN — High-voltage input for controller |
| Pin 2 | HVGATE — Gate drive for external N-channel FET |
| Pin 3 | HVFB — Feedback for HV controller |
| Pin 4 | LVIN1 — Input for LV buck converter 1 |
| Pin 5 | LVSW1 — Switch node for LV buck 1 |
| Pin 6 | LVFB1 — Feedback for LV buck 1 |
| Pin 7 | LVIN2 — Input for LV buck converter 2 |
| Pin 8 | LVSW2 — Switch node for LV buck 2 |
| Pin 9 | LVFB2 — Feedback for LV buck 2 |
| Pin 10 | LVIN3 — Input for LV buck converter 3 |
| Pin 11 | LVSW3 — Switch node for LV buck 3 |
| Pin 12 | LVFB3 — Feedback for LV buck 3 |
| Pin 13 | LVIN4 — Input for LV buck converter 4 |
| Pin 14 | LVSW4 — Switch node for LV buck 4 |
| Pin 15 | LVFB4 — Feedback for LV buck 4 |
| Pin 16 | GND — Ground |
| Pin 17 | EN — Enable pin |
| Pin 18 | MODE — Mode selection |
| Pin 19 | SYNC — External clock sync |
| Pin 20 | VCC — Internal supply |
Aplicaciones típicas
LTC3372MPUH#TR es adecuado para 6 aplicacións: 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
Resumen de productos recomendados
Datos de referencia de ingeniería para LTC3372MPUH#TR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Extended temperature range (-40°C to 125°C) (frente a LTC3372EUH#TR)
- High-voltage controller with 60V input (frente a LTC3372EUH#TR)
- Low quiescent current for battery operation (frente a LTC3372EUH#TR)
Notas de diseño
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.
Información de cumplimiento
RoHS and REACH compliant per Analog Devices product page. Not AEC-Q100 qualified; for automotive, verify with manufacturer.
