TPS65400
- Efficiency up to 95% for each switching regulator
- Switching regulator specifications:
- Input voltage range: 4.5 to 18 V
- VOUT range: 0.6 V-90%VIN
- SW1, SW2 IOUT: 4-A max
- SW3, SW4 IOUT: 2-A max
- Prebias start-up algorithm minimizes voltage dip during start-up
- Internal undervoltage lockout (UVLO), overcurrent protection (OCP), overvoltage protection (OVP), and overtemperature protection (OTP)
- AECQ-100 grade 1 option
- Thermally enhanced 7-mm × 7-mm 48-pin, 0.5-mm pitch VQFN package
- Pin accessible features:
- Adjustable VOUT with external feedback resistors
- Sequencing control through precision enable pins for each switcher
- Resistor adjustable PWM switching frequency from 275 kHz to 2.2 MHz
- Clock sync input and clock output
- Soft-start delay through external capacitor
- Current sharing between SW1 and SW2 and between SW3 and SW4 allows support of higher current needs if required
- PMBus runtime control and status
- Runtime voltage positioning through adjustment of VREF
- Enable and disable of each switcher
- Fault and status monitoring
- User-configurable PMBus/I2C options,
saved in EEPROM
- Power supply turn-on and turn-off sequencing
- Sequencing can be based on fixed time delays or PGOOD dependence
- Initial voltage positioning through VREF configuration
- PWM frequency adjustment for each switcher
- Individual PWM phase alignment for each switcher to minimize ripple and capacitor size
- Adjustable current limit on each regulator enables size and cost optimization of inductors
- Soft-start time
The TPS65400 is an integrated PMU optimized for applications requiring small form factor and high power conversion efficiency, enabling small space-constrained equipment with high ambient operating temperature without cooling. The device provides high-power efficiency at a system level by enabling a single stage conversion from an intermediate distribution bus with an optimized combination of regulators.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS65400 4.5- to 18-V Input Flexible Power Management Unit With PMBus/I2C Interface datasheet (Rev. E) | PDF | HTML | 2022/3/17 | ||
| 應用說明 | How to Calculate the Load Pole and ESR Zero When Using Hybrid Output Capacitors (Rev. A) | 2019/4/2 |
設計與開發
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TPS65400EVM-678 — TPS65400EVM 評估模組
TPS65400EVM-678 評估模組 (EVM) 是一個已完成組裝且經過測試的電路，用於評估 TPS65400。此 EVM 的最大 DC 輸出電流為 4A、4A、2A 與 2A。此 EVM 包含輸入和輸出連接器以及控制跨接器，可輕鬆評估裝置功能。它還具備 EN1、EN2 與 EN_SW 跳線，以啟用與停用降壓與電源開關。
PMP11414 — 適用於空間有限的應用的精巧型數位四路 4/4/2/2A 負載點參考設計
PMP11414 參考設計具備 TPS65400 四路 4/4/2/2A 輸出負載點，並採用小巧的 0.65" x 0.875" 解決方案尺寸 (16.5mm x 22.2mm)。TPS65400 將四個降壓穩壓器完全整合至小型 7mm x 7mm QFN 封裝中。同時具備 PMBus 功能，可靈活控制與配置。 PMP11414 展現高效率和智慧，可提供靈活的裕度與排序功能。
TIDEP0081 — 使用 66AK2L06 JESD204B 連接 ADC32RF80 的寬頻接收器參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGZ) | 48 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。