TPS5450
- Wide input voltage range: 5.5 V to 36 V
- Up to 5-A continuous (6-A peak) output current
- High efficiency greater than 90% enabled by 110-mΩ integrated MOSFET switch
- Wide output voltage range: adjustable down to 1.22 V with 1.5% initial accuracy
- Internal compensation minimizes external part count
- Fixed 500-kHz switching frequency for small filter size
- 18-µA shutdown supply current
- Improved line regulation and transient response by input voltage feedforward
- System protected by overcurrent limiting, overvoltage protection, and thermal shutdown
- –40°C to 125°C operating junction temperature range
- Available in small thermally enhanced 8-pin SOIC PowerPAD™ package
The TPS5450 is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5450 feedback loop is internally compensated.
The TPS5450 device is available in a thermally-enhanced, 8-pin SOIC PowerPAD package. TI provides evaluation modules and software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS5450 5-A, Wide Input Range, Step-Down Converter datasheet (Rev. E) | PDF | HTML | 2022年 7月 15日 |
| Circuit design | Power-supply margining circuit for SMPS using a precision DAC (Rev. A) | 2019年 9月 3日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| EVM User's guide | TPS5450EVM-254 5-A, Swift Regulator Evaluation Module | 2007年 4月 26日 | ||
| Application note | Using TPS5410/20/30/31/50 w/Aluminum/Ceramic Output Capacitors (Rev. C) | 2007年 3月 21日 |
設計與開發
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TPS5450EVM-254 — 5A 評估模組
This evaluation module is designed to demonstrate a typical printed-circuit-board application using the TPS5450 regulator (Vin 10 V - 31 V, up to 5 A). This does not reflect the full range of possible input and output voltages that may be used when designing with this part.
The switching frequency (...)
TUSB319EVM — USB Type-C DFP 埠控制器評估模組
TUSB319EVM 提供完整的參考設計，這是一種最適合 Type-C USB 充電器的 DFP 控制器，可支援高達 3A@5V VBUS 電源訊號和 VBUS 偵測。
| 封裝 | 引腳 | 下載 |
|---|---|---|
| HSOIC (DDA) | 8 | 檢視選項 |
訂購與品質
- 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
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點