TPSM82913E
- Low output noise < 20 µVRMS(100 Hz to 100 kHz)
- Low output voltage ripple < 10 µVRMS after ferrite bead
- High PSRR of > 65 dB (up to 100 kHz)
- 2.2-MHz or 1-MHz fixed frequency peak current mode control
- Synchronizable with external clock (optional)
- Integrated loop compensation supports ferrite bead for second stage L-C filter with 30-dB attenuation (optional)
- Spread spectrum modulation (optional)
- 3.0-V to 17-V input voltage range
- 0.8-V to 5.5-V output voltage range
- 57-mΩ/20-mΩ RDSon
- Output voltage accuracy of ±1%
- Precise enable input allows
- User-defined undervoltage lockout
- Exact sequencing
- Adjustable soft start
- Power-good output
- Output discharge (optional)
- –40°C to 125°C junction temperature range
- –55°C to 125°C for -ET versions
- Create a custom design using the TPSM8291x with the WEBENCH Power Designer
The TPSM8291x devices are a family of high-efficiency, low-noise and low-ripple current mode synchronous buck power modules. The devices are ideal for noise sensitive applications that would normally use an LDO for post regulation such as high-speed ADCs, clock and jitter cleaner, serializer, de-serializer, and radar applications.
The devices operate at a fixed switching frequency of 2.2 MHz or 1 MHz and can be synchronized to an external clock.
To further reduce the output voltage ripple, the device integrates loop compensation to operate with an optional second-stage ferrite bead L-C filter. This feature allows an output voltage ripple below 10 µVRMS.
Low-frequency noise levels, similar to a low-noise LDO, are achieved by filtering the internal voltage reference with an integrated capacitor on the NR/SS pin. An external capacitor can be added to the module for additional filtering.
The optional spread spectrum modulation scheme spreads the DC/DC switching frequency over a wider span, which lowers the mixing spurs.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPSM8291x 3-V to 17-V, 2-A/3-A Low-Noise and Low-Ripple Buck Power Module with Integrated Ferrite Bead Filter Compensation datasheet (Rev. C) | PDF | HTML | 2023年 7月 18日 |
設計與開發
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TPSM82913EVM — 適用於 3-A 低雜訊與低漣波降壓模組的 TPSM82913 評估模組
採用小型 4.5-mm x 5.5-mm QFN 封裝之 TPSM8291xEVM (BSR213) 加速評估 TPSM8291x 2-A 與 3-A 針腳對針腳相容的低雜訊 (< 20 μVRMS) 與低漣波 (< 10 μVRMS) 降壓電源模組。BSR213-001 使用 3-A TPSM82913 從 3 V 到 17 V 輸入電壓輸出 1.2-V 輸出電壓。BSR213-002 使用 2-A TPSM82912 從高達 17 V 的輸入電壓輸出 3.3-V 輸出電壓。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| B0QFN (RDU) | 28 | 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