TPS794
- 250-mA Low-Dropout Regulator With Enable
- Available in Fixed and Adjustable (1.2 V to
5.5 V) Versions - High PSRR (60 dB at 10 kHz)
- Ultralow Noise (32 µVrms, TPS79428)
- Fast Start-Up Time (50 µs)
- Stable With a 2.2-µF Ceramic Capacitor
- Excellent Load/Line Transient Response
- Very Low Dropout Voltage (155 mV at Full Load)
- Available in MSOP-8 and SOT223-6 Packages
- APPLICATIONS
- RF: VCOs, Receivers, ADCs
- Audio
- Bluetooth™, Wireless LAN
- Cellular and Cordless Telephones
- Handheld Organizers, PDAs
PowerPAD is a trademark of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
All trademarks are the property of their respective owners.
The TPS794xx family of low-dropout (LDO) linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow-noise, fast start-up, and excellent line and load transient responses in small outline, MSOP-8 PowerPAD™ and SOT223-6 packages. Each device in the family is stable with a small 2.2-µF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 155 mV at 250 mA). Each device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming low quiescent current (170 µA typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than µA. The TPS79428 exhibits approximately 32 µVRMS of output voltage noise at 2.8 V output with a 0.1-µF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high PSRR and low noise features as well as the fast response time.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | Ultralow-Noise, High-PSRR, Fast, RF, 250-mA Low-Dropout Linear Regulators datasheet (Rev. E) | 2006年 1月 3日 | |
| Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | 2020年 8月 18日 | |
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018年 7月 6日 | ||
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017年 8月 9日 | |
| Test report | TI Power Reference Design for Xilinx® Artix®-7 (AC701) | 2014年 5月 12日 | ||
| User guide | PMP7977 User's Guide | 2013年 9月 11日 | ||
| Application note | Using 3.3-V Signals for Spartan-3 Configuration and JTAG Ports (Rev. A) | 2004年 4月 13日 | ||
| User guide | DEM-SOT223LDO Demonstration Fixture | 2003年 10月 15日 |
設計與開發
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DEM-SOT223LDO — 採用 SOT223 (DCQ) 封裝與最大正輸出 LDO 相容的 DEM-SOT223LDO
The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs). This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.
PMP7977 — 具有 PMBus 電源管理的 Xilinx Artix 7 FPGA 參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HVSSOP (DGN) | 8 | Ultra Librarian |
| SOT-223 (DCQ) | 6 | 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
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。