ZHCSBA4E May 2013 – August 2014 TPS7A8300
PRODUCTION DATA.
- 1 特性
- 2 應用范圍
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configurations and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 ANY-OUT Programmable Output Voltage
- 7.3.2 Adjustable Operation
- 7.3.3 ANY-OUT Operation
- 7.3.4 2-A LDO with an Internal Charge Pump
- 7.3.5 Low-Noise, 0.8-V Reference
- 7.3.6 Internal Protection Circuitry
- 7.3.7 Programmable Soft-Start
- 7.3.8 Power-Good Function
- 7.3.9 Integrated Resistance Network (ANY-OUT)
- 7.4 Device Functional Modes
- 8 Application and Implementation
- 9 Power-Supply Recommendations
- 10Layout
- 11器件和文檔支持
- 12機械封裝和可訂購信息
封裝選項
機械數據 (封裝 | 引腳)
散熱焊盤機械數據 (封裝 | 引腳)
訂購信息
1 特性
2 應用范圍
- 射頻 (RF)，IF 組件：壓控振蕩器 (VCO)，數模轉換器 (ADC)，模數轉換器 (DAC)，低壓差分信令 (LVDS)
- 無線基礎設施：串化解串器 (SerDes)，現場可編程柵極陣列 (FPGA)， DSP™
- 測試和測量
- 儀器儀表、醫療和音頻
3 說明
TPS7A8300 是一款低噪聲 (6µVRMS)，低壓降 (LDO) 穩壓器，能夠在壓降最大值只有 125mV 的情況下提供一個 2A 負載。
用戶完全可以通過印刷電路板 (PCB) 布局布線來調節 TPS7A8300 輸出電壓，而無需外部電阻器，從而減少元件總數量。 對于更高輸出電壓應用，此器件在使用外部電阻器的情況下可實現高達 5V 的輸出電壓。 借助于一個額外的偏置電壓軌，此器件支持極低輸出電壓（低至 1.1V）。
借助于極高精度（線路、負載和溫度范圍內達到 1%），遙感和可以減少涌入電流的軟啟動功能，TPS7A8300 非常適合為諸如高端微處理器和現場可編程門陣列 (FPGA) 等高電流、低電壓的器件供電。
TPS7A8300 針對高速通信應用中的加電噪聲敏感組件而設計。 極低噪聲，6-µVRMS器件輸出和高寬帶電源抑制比 (PSRR)（1MHz 時為
40dB）大大減少了高頻信號中的相位噪聲和時鐘抖動。 這些特性大大增加了計時器件、模數轉換器 (ADC) 和數模轉換器 (DAC) 的性能。
對于需要正向和負向低噪聲電源軌的應用，請考慮 TI 的TPS7A33負向高電壓、超低噪聲線性穩壓器系列產品。
器件信息(1)
| 部件號 | 封裝 | 封裝尺寸（標稱值） |
|---|---|---|
| TPS7A8300 | 超薄四方扁平無引線封裝 (VQFN) (20) | 5.00mm x 5.00mm |
| 超薄四方扁平無引線封裝 (VQFN) (20) | 3.50mm x 3.50mm |
- 如需了解所有可用封裝，請見數據表末尾的可訂購產品附錄。
4 修訂歷史記錄
Changes from D Revision (February 2013) to E Revision
- 更改了格式以滿足最新數據表標準；添加了新的部分并移動了現有部分Go
- 更改了第五個特性要點下的第一個分項 ANY-OUTGo
- 更改了第八個特性要點：將軟啟動輸出和 PG 輸出拆成了兩個單獨的特性要點Go
- 更改了說明部分中第二段的第一句。Go
- Changed RGW and RGR drawings: removed spacing between number and unit in pins 5 to 7 and 9 to 11 Go
- Changed first row of Pin Functions table: deleted spacing between number and unit in pin namesGo
- Added capacitor value to BIAS pin description in Pin Functions tableGo
- Changed 87% to 89% in the PG pin description of the Pin Functions tableGo
- Changed thermal pad description in Pin Functions tableGo
- Changed conditions statements for Absolute Maximum Ratings and Recommended Operating Conditions tables Go
- Added Recommended Operating Conditions tableGo
- Changed the Typical Characteristics section: changed all curve titles and conditions Go
- Changed title of Figure 11Go
- Added Overview section Go
- Changed second paragraph of Overview section: changed that can be groups, as follows to includingGo
- Changed functional block diagram footnoteGo
- Added Feature Description sectionGo
- Changed adjustable version to adjustable configuration in first paragraph of Adjustable Operation section Go
- Changed Figure 51: removed right-hand side diagramGo
- Added Figure 52Go
- Changed second sentence in Internal Charge Pump section Go
- Changed last sentence of UVLO sectionGo
- Changed oscillates to cycles in first paragraph of Thermal Protection sectionGo
- Changed first sentence of Programmable Soft-Start sectionGo
- Added Device Functional Modes sectionGo
- Added Application Information section Go
- Changed second paragraph of Noise sectionGo
- Added Typical Application section Go
- Added Figure 57Go
Changes from C Revision (July 2013) to D Revision
- Changed 將文檔狀態從混合狀態更改為生產數據Go
- Deleted 刪除了最后一個特性要點中第二個分項的腳注Go
- Deleted footnote from RGR package drawingGo
- Changed GND pin description in Pin Descriptions tableGo
Changes from B Revision (July 2013) to C Revision
- Deleted PG Functionality sectionGo
- Changed Power-Good sectionGo
- Changed text in Feed-Forward Capacitor subsectionGo
Changes from A Revision (June 2013) to B Revision
- 從產品預覽更改為生產數據（混合狀態）Go
Changes from * Revision (May 2013) to A Revision
- 更改了產品預覽數據表Go