Herramienta de cálculo
TPS546B24A
Convertidor reductor SWIFT™ síncrono de 2.95 V a 18 V y 20 A apilable con PMBus y fijación de pasado
Hoja de datos
TPS546B24A
- Split rail support: 2.95-V to 18-V PVIN; 2.95-V to 18-V AVIN (4-VIN VDD5 for switching)
- Integrated 5.5-mΩ/1.8-mΩ MOSFETs
- Average current mode control with selectable internal compensation
- 2×, 3×, 4× stackable with current sharing up to 80 A, supporting a single address per output
- Selectable 0.5-V to 5.5-V output via pin strap or 0.25-V to 5.5-V using PMBus VOUT_COMMAND
- Extensive PMBus command set with telemetry for VOUT, IOUT and internal die temperature
- Differential remote sensing with internal FB divider for < 1% VOUT error –40°C to +150°C TJ
- AVS and margining capabilities through PMBus
- MSEL pins pin programming PMBus defaults
- 12 Selectable switching frequencies from 225 kHz to 1.5 MHz (8 pin-strap options)
- Frequency sync in/sync out
- Supports prebiased output
- Supports strongly coupled inductor
- 7-mm × 5-mm × 1.5-mm, 40-pin QFN, pitch = 0.5 mm
- Create a Custom Design Using the TPS546B24A With WEBENCH Power Designer
The TPS546B24A is a highly integrated, non-isolated DC/DC converter capable of high frequency operation and 20-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546B24A devices can be interconnected to provide up to 80 A on a single output. The device has an option to overdrive the internal 5-V LDO with an external 5-V supply via the VDD5 pin to improve efficiency and reduce power dissipation of the converter.
The TPS546B24A uses a proprietary fixed-frequency current-mode control with input feedforward and selectable internal compensation components for minimal size and stability over a wide range of output capacitances.
The PMBus interface with 1-MHz clock support gives a convenient, standardized digital interface for converter configuration as well as monitoring of key parameters including output voltage, output current, and internal die temperature. Response to fault conditions can be set to restart, latch off, or ignore, depending on system requirements. Back-channel communication between stacked devices enables all TPS546B24Aconverters powering a single output rail to share a single address to simplify system software/firmware design. Key parameters including output voltage, switching frequency, soft-start time, and overcurrent fault limits can also be configured through BOM selection without PMBus communication to support program free power-up.
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Documentación técnica
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Ver todo 12 Diseño y desarrollo
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Placa de evaluación
TPS546A24AEVM-1PH — Módulo de evaluación de reductor síncrono de 2.95 V a 18 V y 10 A
The TPS546A24AEVM-1PH is an evaluation module (EVM) for the TPS546A24A 10-A buck converter. The TPS546A24A device is a stackable synchronous buck with PMBus interface that can operate from a nominal 2.95-V to 18-V supply. The device allows programming and monitoring through the PMBus interface.
Placa de evaluación
TPS546B24AEVM — Módulo de evaluación de reductor síncrono bifásico de 40 A
The TPS546B24AEVM-2PH evaluation module (EVM) is a 40-A, two-phase buck converter with two TPS546B24A devices. The TPS546B24A device is a stackable synchronous buck with PMBus interface that can operate from a nominal 2.95-V to 18-V supply. The device allows programming and monitoring via the (...)
Placa de evaluación
TPS546B24AEVM-1PH — Módulo de evaluación de reductor síncrono de 2.95 V a 18 V y 20 A
The TPS546B24AEVM-1PH is an evaluation module (EVM) for the TPS546B24A 20-A buck converter. The TPS546B24A device is a stackable synchronous buck with PMBus interface that can operate from a nominal 2.95-V to 18-V supply. The device allows programming and monitoring through the PMBus interface.
Modelo de simulación
TPS546B24A SIMPLIS Transient and Average Model
SLUM750.ZIP (1784 KB) - SIMPLIS Model
Modelo de simulación
TPS546B24A Unencrypted PSpice Average Model Package (Rev. A)
SLUM715A.ZIP (72 KB) - PSpice Model
Herramienta de cálculo
SLURB01 — TPS546D24A TPS546B24A TPS546A24A Excel Calculator Tool and Checklist
Productos y hardware compatibles
Productos
Convertidores de CA/CC y CC/CC (FET integrado)
Diseños de referencia
PMP21814 — Diseño de referencia de convertidor buck sincrónico de 4 fases y 160 A para alimentación de procesad
This reference design uses four TPS546D24A converters with integrated MOSFETs to support a full load of 160A at a 0.9V output. The system operates at a switching frequency of 650 kHz and has a PMBus interface that can be used to configure key converter parameters, including internal compensation. (...)
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| LQFN-CLIP (RVF) | 40 | Ultra Librarian |
Pedidos y calidad
Información incluida:
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
Información incluida:
- Lugar de fabricación
- Lugar de ensamblaje
Soporte y capacitación
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