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TPS790
- 50-mA Low-Dropout Regulator
- Available in 1.5-V, 1.8-V, 2.5-V, 2.8-V, 3.0-V
- Output Noise Typically 56 uVRMS (TPS79030)
- Only 17 uA Quiescent Current at 50 mA
- 1 uA Quiescent Current in Standby Mode
- Dropout Voltage Typically 57 mV at 50 mA (TPS79030)
- Over Current Limitation
- \x9640°C to 125°C Operating Junction Temperature Range
- 5-Pin SOT-23 (DBV) Package
The TPS790xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, ultralow-power operation, low-output noise, and miniaturized packaging. These regulators feature low-dropout voltages and ultralow quiescent current compared to conventional LDO regulators. An internal resistor, in conjunction with an external bypass capacitor, creates a low-pass filter to reduce the noise. The TPS79030 exhibits only 56 uVRMS of output voltage noise using 0.01 uF bypass and 10 uF output capacitors. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS790xx series devices are ideal for micropower operations, low output noise, and where board space is limited.
The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low, typically 57 mV at 50 mA of load current (TPS79030), and is directly proportional to the load current. The quiescent current is ultralow (17 uA typically) and is stable over the entire range of output load current (0 mA to 50 mA). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life.
The TPS790xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS790xx is offered in 1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | Ultralow-Power, Low-Noise 50-mA Low Dropout Linear Regulators datasheet (Rev. B) | 2001年 5月 4日 | |
Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | 2020年 8月 18日 | |
Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017年 8月 9日 | |
User guide | DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) | 2005年 6月 2日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
封裝 | 引腳 | 下載 |
---|---|---|
SOT-23 (DBV) | 5 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
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