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。
TPS62402-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with
the following results:
- Device temperature grade 1: –40°C to 125°C operating junction temperature range
- Device HBM ESD classification level H2
- Device CDM ESD classification level C4B
- High efficiency—up to 95%
- VIN Range from 2.5 V to 6 V
- 2.25-MHz Fixed-frequency operation
- Output current 400 mA and 600 mA
- Adjustable output voltage from 0.6 V to VIN
- Pin selectable output voltage supports simple dynamic voltage scaling
- EasyScale™ optional one-pin serial interface
- Power-save mode at light load currents
- 180° Out-of-phase operation
- Output-voltage accuracy in PWM mode ±1%
- Typical 32-µA quiescent current for both converters
- 100% Duty cycle for lowest dropout
The TPS6240x-Q1 family of devices are synchronous dual step-down DC-DC converters optimized for battery-powered portable applications and automotive systems. They provide two independent output voltage rails powered by rechargeable batteries or standard 3.3-V or 5-V voltage rail.
The EasyScale™ serial interface allows output-voltages
modification during operation. The fixed-output-voltage versions, TPS62402-Q1,
TPS62404-Q1, and TPS62405-Q1 support one-pin-controlled simple dynamic voltage scaling for
low-power processors.
The TPS6240x-Q1 operates at 2.25-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load-current range. For low-noise applications, one can force the devices into fixed-frequency PWM mode by pulling the MODE/DATA pin high. The shutdown mode reduces the current consumption to 1.2-µA, typical. The devices allow the use of small inductors and capacitors to achieve a small solution size.
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 | TPS6240x-Q1 2.25-MHz 400-mA and 600-mA Dual Step-Down Converter datasheet (Rev. F) | PDF | HTML | 2020/4/16 | ||
| 功能安全資訊 | TPS6240x-Q1 Pin FMA | PDF | HTML | 2021/10/13 | |||
| 類比設計期刊 | Methods of output-voltage adjustment for DC/DC converters | 2019/6/14 | ||||
| 應用說明 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||||
| 類比設計期刊 | Understanding 100% mode in low-power DC/DC converters | 2018/6/22 | ||||
| 類比設計期刊 | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 2017/10/24 | ||||
| 類比設計期刊 | Testing tips for applying external power to supply outputs without an input voltage | 2016/10/24 | ||||
| 應用說明 | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | PDF | HTML | 2015/8/17 | |||
| 類比設計期刊 | Five steps to a great PCB layout for a step-down converter | 2015/1/29 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRC) | 10 | 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。