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產品規格表
TPS546A24A
- 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 40 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 TPS546A24A With WEBENCH Power Designer
The TPS546A24A is a highly integrated, non-isolated DC/DC converter capable of high frequency operation and 10-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546A24A devices can be interconnected to provide up to 40 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 TPS546A24A 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 TPS546A24Aconverters 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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檢視所有 10 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS546A24A 2.95-V to 18-V, 10-A, up to 4x Stackable, PMBus Buck Cnvtr datasheet (Rev. A) | 2020年 9月 22日 | |
| Application note | Point-of-Load Solutions for Network Interface Cards (NIC) | PDF | HTML | 2021年 9月 8日 | |
| EVM User's guide | TPS546A24A SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2021年 4月 27日 | |
| Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 2021年 4月 8日 | ||
| Certificate | TPS546A24AEVM-1PH EU Declaration of Conformity (DoC) | 2020年 7月 30日 | ||
| Technical article | 3 big benefits of small cells | PDF | HTML | 2020年 5月 26日 | |
| Application note | Minimize On-Time-Jitter and Ripple by Optimizing Compensation | 2020年 5月 11日 | ||
| Technical article | Advantages of scalability: from Peter Parker to pin-strapping | PDF | HTML | 2020年 4月 30日 | |
| Technical article | SoC power design: 3 steps to a thermally optimized power supply | PDF | HTML | 2020年 3月 9日 | |
| Application note | Powering the TPS546D24A Device Family From a Single 3.3-V Input Power Supply (Rev. A) | 2020年 3月 4日 |
設計與開發
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開發板
TPS546A24AEVM-1PH — 2.95-V 至 18-V，10-A 同步降壓評估模組
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.
開發板
TPS546B24AEVM — 40-A、2 相同步降壓評估模組
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 (...)
開發板
TPS546B24AEVM-1PH — 2.95-V 至 18-V，20-A 同步降壓評估模組
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.
開發板
TPS546D24SEVM-2PH — 具有寫入鎖定功能的 TPS546D24S 評估模組固定頻率同步降壓轉換器 2 相
TPS546D24SEVM-2PH 評估模組 (EVM) 是 2 相降壓轉換器，配備兩個提供單一 0.8 V 輸出的 TPS546D24S 裝置。TPS546D24A 裝置是具備 PMBus 介面的堆疊式同步降壓轉換器，可在額定 2.95 V 至 16 V 輸入供電範圍內運作。此裝置可經由 PMBus 介面進行編程及監控，該介面具有使用者可配置的寫入鎖定功能，以提高安全性。
計算工具
SLURB01 — TPS546D24A TPS546B24A TPS546A24A Excel Calculator Tool and Checklist
支援產品和硬體
產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| LQFN-CLIP (RVF) | 40 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點