TPS40322
- Dual-Output or Two-Phase Synchronous Buck
Controller - 180° Out-of-Phase Reduces Input Ripple
- Input Voltage Range: 3 V to 20 V
- Output Voltage Range: 0.6 V to 5.6 V
- Adjustable Frequency: 100 kHz to 1 MHz
- Bidirectional SYNC Pin With 0°/180° or 90°/270°
Phase Shift - Voltage Mode Control With Input Feedforward
- Accurate Current Sharing for Two-Phase
Operation - Individual Power Good Outputs
- Individual Enable and Programmable Soft Start,
With Pre-Bias Start-Up - ±0.5%, 600-mV Reference
- Output UV/OV Protection and Input Undervoltage
Lockout - Individual Overcurrent Limit Setting
- Hiccup Overcurrent Protection
- Accurate Inductor DCR or Resistive Current
Sensing - Remote Sense for Two-Phase Applications
- Internal N-Channel FET Drivers
- Integrated Bootstrap Switches
- Available in 5-mm × 5-mm 32-Pin VQFN Package
The TPS40322 device is a dual-output, synchronous buck controller. It can also be configured as a single-output, two-phase controller. The 180° out-of-phase operation reduces the input current ripple and extends the input capacitor lifetime. Bidirectional master and slave synchronization function provides evenly distributed phase shift for a four-output system that reduces input ripple further and attenuates the system noise.
The wide input range can support 3.3-V, 5-V, and 12-V buses. The accurate reference voltage satisfies the precision voltage needed by ASICs and potentially reduces the output capacitance requirement. Separate PGOOD signals provide flexibility for system monitoring and sequencing. The two channels are independently controlled and each soft-start time is programmable. Voltage mode control is implemented to reduce noise sensitivity and also ensures low duty ratio conversion.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS40322 Dual Output or Two-Phase Synchronous Buck Controller datasheet (Rev. E) | PDF | HTML | 2016年 1月 7日 |
Application note | Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) | 2021年 4月 7日 | ||
Application note | Implementing Output Voltage Offset in the TPS40322 | PDF | HTML | 2020年 11月 23日 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
Application note | SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC | 2016年 2月 22日 | ||
User guide | Using the TPS40322EVM-074 | 2012年 4月 5日 | ||
EVM User's guide | Using the TPS40322EVM-679 | 2011年 5月 4日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS40322EVM-074 — TPS40322 雙路輸出或二相同步降壓控制器的評估模組
TPS40322EVM-679 — TPS40322 雙路輸出或二相同步降壓控制器的評估模組
PMP8962 — 12V 輸入、使用 NexFET Power Block II 的小巧雙 5V/5.5A 負載點參考設計
PMP20516 — 5V 45A 雙相同步降壓參考設計
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RHB) | 32 | 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