TPS54335A
- Synchronous 128-mΩ and 84-mΩ MOSFETs for
3-A Continuous Output Current - TPS54335A: Internal 2-ms Soft-Start,
50-kHz to 1.5-MHz Adjustable Frequency - TPS54336A: Adjustable Soft-Start,
Fixed 340-kHz Frequency - Low 2-µA Shutdown, Quiescent Current
- 0.8-V Voltage Reference with ±0.8%
Accuracy - Current Mode Control
- Monotonic Startup into Pre-Biased Outputs
- Pulse Skipping for Light-Load Efficiency
- Hiccup Mode Overcurrent Protection
- Thermal Shutdown (TSD) and
Overvoltage Transition Protection - 8-Pin SO PowerPAD and 10-Pin VSON Packages
The TPS5433xA family of devices are synchronous converters with an input-voltage range of 4.5 to 28 V. These devices include an integrated low-side switching FET that eliminates the need for an external diode which reduces component count.
Efficiency is maximized through the integrated 128-mΩ and 84-mΩ MOSFETs, low IQ and pulse skipping at light loads. Using the enable pin, the shutdown supply current is reduced to 2 μA. This step-down (buck) converter provides accurate regulation for a variety of loads with a well-regulated voltage reference that is 1.5% over temperature.
Cycle-by-cycle current limiting on the high-side MOSFET protects the TPS5433xA family of devices in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. A low-side sinking current-limit turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection is triggered if the overcurrent condition continues for longer than the preset time. Thermal shutdown disables the device when the die temperature exceeds the threshold and enables the device again after the built-in thermal hiccup time.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS5433xA 4.5-V to 28-V Input, 3-A Output, Synchronous Step-Down DC-DC Converter datasheet (Rev. D) | PDF | HTML | 2016年 2月 10日 |
| Application brief | Simplify Voltage and Current Measurement in Battery Test Equipment (Rev. A) | PDF | HTML | 2022年 3月 10日 | |
| User guide | TPS54335A Step-Down Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2021年 10月 7日 | |
| Application note | How to Estimate Overshoot and Undershoot of Load Transients of a DC/DC Regulator | 2017年 12月 20日 | ||
| Application note | Using TPS54335A to Create an Inverting Power Supply (Rev. A) | 2017年 7月 19日 | ||
| Application note | Using TPS54335A to Create an Inverting Power Supply | 2017年 7月 13日 |
設計與開發
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TPS54335AEVM-010 — TPS54335A 同步降壓轉換器評估模組
The TPS54335AEVM-010 is a fully assembled and tested circuit for evaluating the TPS54335A synchronous step-down SWIFT™ converter. The EVM converts a 8-V to 28-V input voltage to a regulated 5-V output voltage that delivers up to 2 A. The TPS54335A enables small designs by integrating the (...)
TPS54335A Unencrypted PSpice Average Model Package (Rev. A)
TPS54335A Unencrypted PSpice Transient Model Package (Rev. A)
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
| VSON (DRC) | 10 | Ultra Librarian |
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
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點