計算工具
產品規格表
TPS54561
- High efficiency at light loads with pulse skipping Eco-mode™
- 87-mΩ high-side MOSFET
- 152-µA operating quiescent current and 2-µA shutdown current
- 100-kHz to 2.5-MHz adjustable switching frequency
- Synchronizes to external clock
- Low dropout at light loads with integrated BOOT recharge FET
- Adjustable UVLO voltage and hysteresis
- UV and OV power-good output
- Adjustable soft start and sequencing
- 0.8-V 1% internal voltage reference
- 10-pin WSON with thermal pad package
- –40°C to 150°C TJ operating range
- Create a custom design using the TPS54561 with the WEBENCH® Power Designer
The TPS54561 is a 60-V, 5-A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 65V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load supply current to 152 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor divider at the enable pin. The output voltage start up ramp is controlled by the soft start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 93% to 106% of its nominal voltage.
A wide adjustable switching-frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback and thermal shutdown protects internal and external components during an overload condition.
The TPS54561 is available in an 10-pin 4-mm × 4-mm WSON package.
技術文件
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檢視所有 6 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS54561 4.5-V to 60-V Input, 5-A, Step-Down DC-DC Converter with Soft-Start and Eco-mode™ datasheet (Rev. G) | PDF | HTML | 2021年 6月 2日 |
| Application note | Controller to Converter – Design Considerations for 24V and 48V Systems | PDF | HTML | 2024年 10月 2日 | |
| EVM User's guide | Evaluation Module for the TPS54561 Step-Down Converter | 2013年 10月 30日 | ||
| Application note | Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) | 2013年 9月 16日 | ||
| Application note | Create a Split-Rail Power Supply with a Wide Input Voltage Buck Regulator (Rev. A) | 2012年 10月 26日 | ||
| Application note | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 2012年 10月 26日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
TPS54561EVM-555 — TPS54561EVM-555 - 60V 輸入 5A 降壓 DC-DC 轉換器評估模組
The TPS54561EVM-555 is a fully assembled and tested circuit for evaluating the TPS54561 Step-Down Converter. The TPS54561EVM-555 operates from a 7.0V to 60V input (12V nominal) and provides a 5.0V output at 5.0A.
使用指南: PDF
計算工具
SWIFTINV-CALC — SWIFT™ Converter Inverting Buck/Boost Calculator
The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)
支援產品和硬體
產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
參考設計
PMP10357 — 12V@4.2A 降壓轉換器無線電參考設計
This current-mode control buck converter provides 12V @ 4.2A over a wide 14V - 36V input voltage range. It uses minimal component count and a 500KHz switching frequency to occupy approximately 1 sq-inch of board area. It achieves a peak efficiency of 95.7% at 24Vin and 2A load.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DPR) | 10 | 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