TPS51220A-Q1
- Qualified for Automotive Applications
- 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)
- Latch-Up exceeds 100mA per JESD78- Class I
- Integrated Boot Strap MOSFET Switch
- QFN-32 (RTV) Package
- APPLICATIONS
- I/O Bus
- Point of Load in LCD TV, MFP
The TPS51220A-Q1 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-Q1 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-Q1 can also synchronize to the external clock, and the interleaving ratio can be adjusted by its duty. The TPS51220A-Q1 is available in the 32-pin 5×5/4×4 QFN package and is specified from –40°C to 105°C.
技術資料
| 種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | データシート | Fixed Frequency 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller データシート | 2011年 2月 21日 |
設計および開発
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TPS51220AEVM-476 — 高性能、デュアル出力、同期整流バック評価モジュール、TPS51220A 使用
TPS51220A Unencrypted PSpice Transient Model Package (Rev. B)
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| WQFN (RTV) | 32 | Ultra Librarian |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 使用原材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点