現在提供此產品的更新版本
功能相同，但針腳輸出與所比較的裝置不同。
TPS54388C-Q1
- AEC-Q100-qualified for automotive
applications:
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Two 12-mΩ (typical) MOSFETs for high efficiency at 3-A loads
- 200-kHz to 2-MHz switching frequency
- 0.8 V ± 1% voltage reference over temperature (–40°C to +150°C)
- Synchronizes to external clock
- Adjustable slow start and sequencing
- UV and OV power-good output
- –40°C to +150°C operating junction temperature range
- Thermally enhanced 3-mm × 3-mm 16-pin WQFN
- Pin compatible to TPS54418
- Newer product available: TPS62813-Q1, 6-V step-down converter in 2-mm x 3-mm QFN package with wettable flanks
The TPS54388C-Q1 device is a full-featured 6-V, 3-A, synchronous step-down current-mode converter with two integrated MOSFETs.
The TPS54388C-Q1 device enables small designs by integrating the MOSFETs, implementing current-mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small 3-mm × 3-mm thermally enhanced QFN package.
The TPS54388C-Q1 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (Vref) over temperature.
The integrated 12-mΩ MOSFETs and 515-µA typical supply current maximize efficiency. Entering shutdown mode using the enable pin reduces shutdown supply current to 5.5 µA, typical.
The internal undervoltage lockout setting is at 2.45 V, but programming the threshold with a resistor network on the enable pin can increase the setting. The slow-start pin sets the output-voltage start-up ramp. An open-drain power-good signal indicates when the output is within 93% to 107% of its nominal voltage.
Frequency foldback and thermal shutdown protect the device during an overcurrent condition.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS54388C-Q1 Automotive 2.95-V to 6-V, 3-A , 2-MHz Synchronous Buck Converter datasheet (Rev. B) | PDF | HTML | 2021/6/24 | ||
| 選擇指南 | Buck Converter Quick Reference Guide (Rev. B) | 2021/4/8 | ||||
| 功能安全資訊 | TPS54388C-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | PDF | HTML | 2020/11/30 | |||
| 技術文章 | Minimize the impact of the MLCC shortage on your power application | PDF | HTML | 2019/3/29 | |||
| 技術文章 | How to power next-generation ADAS camera modules | PDF | HTML | 2018/9/11 | |||
| 技術文章 | Use a low-quiescent-current switcher for high-voltage conversion | PDF | HTML | 2018/8/28 | |||
| 技術文章 | Let’s break it down: how buck converters make your power supply more flexible | PDF | HTML | 2017/12/13 | |||
| 應用說明 | TPS57112-Q1 High Frequency (2.35 MHz) Operation | 2016/5/31 | ||||
| 應用說明 | Enable Functionality and Adjusting Under Voltage Lockout for TPS57112-Q1 Device | 2016/5/5 | ||||
| 應用說明 | Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter | 2015/12/8 |
設計與開發
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TPS54388EVM — TPS54388EVM：2.95V-6V 輸入、3A、2MHz 同步降壓 SWIFTT DCDC 轉換器評估模組
The TPS54388-Q1 DC/DC converter is designed to provide up to a 3-A output from an input voltage source of 2.95 V to 6 V. This evaluation module is designed to demonstrate the small printed-circuit-board (PCB) areas that may be achieved when designing with the TPS54388-Q1 regulator. The switching (...)
TPS54388-Q1 Unencrypted PSpice Transient Model Package (Rev. A)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTE) | 16 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。