TPS51220A
- Input Voltage Range: 4.5 V to 32 V
- Output Voltage Range: 1 V to 12 V
- Selectable Light Load Operation (Continuous / Auto Skip / Out-Of-Audio Skip)
- Programmable Droop Compensation
- Voltage Servo Adjustable Soft Start
- 200-kHz to 1-MHz Fixed-Frequency PWM
- Selectable Current/D-CAP Mode Architecture
- 180° Phase Shift Between Channels
- Resistor or Inductor DCR Current Sensing
- Adaptive Zero Crossing Circuit
- Powergood Output for Each Channel
- OCL/OVP/UVP/UVLO Protections
(OVP Disable Option) - Thermal Shutdown (Non-Latch)
- Output Discharge Function (Disable Option)
- Integrated Boot Strap MOSFET Switch
- QFN-32 (RTV/RSN) Package
- APPLICATIONS
- Notebook Computer System and I/O Bus
- Point of Load in LCD TV, MFP
The TPS51220A is a dual synchronous buck regulator controller with two LDOs. It is optimized for 5-V/3.3-V system controller, enabling designers to cost effectively complete 2-cell to 4-cell notebook system power supply. The TPS51220A supports high efficiency, fast transient response, and 99% duty cycle operation. It supports supply input voltage ranging from 4.5 V to 32 V, and output voltages from 1 V to 12 V. Two types of control schemes can be chosen depending on the application. Peak current mode supports stability operation with lower ESR capacitor and output accuracy. The D-CAP mode supports fast transient response. The high duty (99%) operation and the wide input/output voltage range supports flexible design for small mobile PCs and a wide variety of other applications. The fixed frequency can be adjusted from 200 kHz to 1 MHz by a resistor, and each channel runs 180° out-of-phase. The TPS51220A can also synchronize to the external clock, and the interleaving ratio can be adjusted by its duty. The TPS51220A is available in the 32-pin 5×5/4×4 QFN package and is specified from –40°C to 85°C.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | Fixed-Frequency 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller datasheet (Rev. E) | 2013年 1月 21日 | |
| User guide | TPS51220A Buck Controller Evaluation Module User's Guide (Rev. B) | PDF | HTML | 2022年 2月 11日 | |
| Application note | Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B) | PDF | HTML | 2021年 4月 29日 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Independent Rail Dual Buck Converter using TPS51220 | 2013年 11月 22日 |
設計與開發
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TPS51220AEVM-476 — 使用 TPS51220A 的高效能雙輸出同步降壓評估模組
TPS51220(A) Unencrypted PSpice Average Model Package (Rev. A)
TPS51220A Unencrypted PSpice Transient Model Package (Rev. B)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RSN) | 32 | Ultra Librarian |
| WQFN (RTV) | 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