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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TPS40322 Dual Output or Two-Phase Synchronous Buck Controller 数据表 (Rev. E) | PDF | HTML | 2016-1-7 | ||
| 应用手册 | 多相降压设计大全（第 1 部分） (Rev. B) | PDF | HTML | 英语版 (Rev.B) | 2021-5-3 | ||
| 应用手册 | Implementing Output Voltage Offset in the TPS40322 | PDF | HTML | 2020-11-23 | |||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 应用手册 | SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC | 2016-2-22 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |
订购和质量
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