TPS54A20
- Two-phase, Synchronous Series Capacitor Buck
Converter - Automatic Current Balancing Between Phases
- 2-MHz to 5-MHz Per Phase Switching Frequency
- 14-ns Minimum On-Time
- 0.51-V to 2-V Output Voltage Range with ±0.5%
Feedback Reference Voltage - Input Overvoltage Lockout for 17-V Surge
Protection - Adjustable Current Limit with Auto Restart
(Hiccup) - Synchronizes to an External Clock
- Fixed Frequency in Steady State
- Adaptive On-Time Control
- Internal Feedback Loop Compensation
- Internal Gate Drive LDO with External Supply
Option - EN Pin Allowing for Adjustable Input UVLO
- Selectable Soft-Start Time
- Monotonic Startup with Pre-biased Output
- Output Power Good Indicator (Open Drain)
- Output Overvoltage/Undervoltage Protection
The TPS54A20 is a two-phase, synchronous series capacitor buck converter designed for small size, low voltage applications from a 12-V input rail. This topology uniquely merges a switched capacitor circuit with a two phase buck converter. Advantages include automatic current balancing between the inductors, lower switching losses which enable high frequency (HF) operation, and voltage step-down through the series capacitor. Small, low profile inductors used with the TPS54A20 significantly reduce total solution area and height. An adaptive on-time control architecture provides fast transient response and accurate voltage regulation at up to 10-MHz operating frequency. Fixed frequency operation during steady state is maintained through the use of a phase lock loop (PLL) to lock switching signals to a reference oscillator.
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TPS54A20EVM-770 — TPS54A20 同步降壓轉換器評估模組
TPS54A20EVM-770 is a 10 A synchronous dual phase converter evaluation module (EVM). The EVM generates a 1.2 V output voltage froma a nominal 12 V input. The input voltage range is 9.2 V to 14 V with a minimum start up voltage of 9.4 V. The circuit is set upfor default operation of (...)
PMP11438 — 將 12V 轉換為 1.2V (負載電流大於 6A) 的三種不同降壓轉換器電路參考設計
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN-HR (RNJ) | 20 | 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