TPS54334
- Two 128mΩ/84mΩ MOSFETs for 3A Continuous
Output Current - Power Good
- Low 2 µA Shutdown Quiescent Current
- 0.8 V Internal Voltage Reference with ±1.5%
Accuracy Over Temperature - Fixed-Frequency Current Mode Control
- Pulse Skipping Boosts Efficiency at Light Loads
- Overcurrent Protection for Both MOSFETs with
Hiccup Mode for Severe Fault Conditions - Thermal and Overvoltage Transient Protection
- Available in Easy-to-Use 8-Pin SOIC
PowerPAD™ and 10-Pin SON - Monotonic Start-Up into Pre-biased Outputs
The TPS54334 is a 28-V, 3-A, low quiescent supply current (IQ), synchronous monolithic buck converter with integrated MOSFETs.
The TPS54334 enables small designs by integrating the MOSFETs and implementing current mode control to reduce external component count.
Efficiency is maximized through the integrated 128mΩ/84mΩ MOSFETs, low quiescent supply current and pulse skipping at light loads. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.
The TPS54334 provides accurate regulation for a variety of loads with an accurate 1.5% voltage reference over temperature.
Cycle by cycle current limiting on the high-side fet protects the TPS54334 in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection will be triggered if the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the part when die temperature exceeds thermal shutdown temperature and enables the part again after the built-in thermal hiccup time.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS54334 4.2-V to 28-V Input Voltage, 3-A Output Current Synchronous Step-Down Voltage Converter datasheet (Rev. A) | PDF | HTML | 2016年 2月 10日 |
| User guide | TPS54334 Step-Down Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2021年 10月 8日 | |
| Application note | Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) | PDF | HTML | 2019年 4月 1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 |
設計與開發
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TPS54334EVM-722 — TPS54334EVM-722 3-A 穩壓器評估模組
The TPS54334 is a 28-V, 3-A, low quiescent supply current (IQ), synchronous monolithic buck converter with integrated MOSFETs.The TPS54334 enables small designs by integrating the MOSFETs and implementing current mode control to reduce external component count.
Efficiency is maximized through the (...)
TPS54335A Unencrypted PSpice Average Model Package (Rev. A)
| 封裝 | 引腳 | 下載 |
|---|---|---|
| HSOIC (DDA) | 8 | 檢視選項 |
| VSON (DRC) | 10 | 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