TPS546A24 vs TPS546B24ARVFR Comparison
Detailed side-by-side comparison of TPS546A24 by Texas Instruments and TPS546B24ARVFR by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
TPS546A24 - 10A 18V Stackable PMBus Buck Converter | Texas Instruments
TPS546A24 ✓ ActiveTexas Instruments
TPS546B24ARVFR - 18V, 20A Stackable Sync Buck Converter | TI
TPS546B24ARVFR ✓ ActiveSpecification Comparison
| Parameter | TPS546A24 | TPS546B24ARVFR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | DC-DC Converters | DC-DC Converters |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.92 | $5.20 |
| Topology | Synchronous Buck (Step-Down) | Synchronous Buck (Step-Down) |
| Input Voltage Range | 2.95 V to 18 V | — |
| Output Voltage Range | 0.5 V to 5.5 V (adjustable, minimum 0.5 V) | 0.6 V to 5.5 V (adjustable) |
| Continuous Output Current | 10 A | 20 A |
| Stackable | Yes, up to 4 phases (40 A total) | — |
| Switching Frequency Range | 225 kHz to 1.5 MHz | 225 kHz to 1.5 MHz (selectable via PMBus or pin-strap) |
| Pin-Strap Frequencies | 12 selectable (8 via MSEL pins) | — |
| Digital Interface | PMBus | PMBus (voltage, current, temperature telemetry; margining; sequencing) |
| Internal LDO | 5 V (with optional external overdrive via VDD5) | — |
| Internal Digital Regulator | 1.5 V (BP1V5) | — |
| Control Mode | Peak Current-Mode with Internal Compensation | Average current mode with selectable internal compensation |
| Package | 40-pin QFN (RVF) PowerLFQFN, 7 mm x 5 mm x 1.5 mm | LQFN-CLIP-40 (RVF), 7 mm x 5 mm, 0.9 mm height |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40 C to +125 C junction | — |
| Pre-Biased Output Support | Yes | — |
| Frequency Sync | Sync In / Sync Out | — |
| RoHS Status | Compliant | Compliant |
| MSL Level | 2 (per JEDEC J-STD-020) | [DATA_NEEDED: MSL moisture sensitivity level] |
| Input Voltage (PVIN/AVIN) | — | 2.95 V to 18 V |
| Stackable Configuration | — | 2x / 3x / 4x with current sharing |
| High-Side MOSFET Rds(on) | — | 5.5 mΩ |
| Low-Side MOSFET Rds(on) | — | 1.8 mΩ |
| Output Voltage Reference | — | 0.6 V ±1% |
| Operating Junction Temperature | — | -40 °C to +150 °C |