LP2954A
- 5-V Output within 1.2% Over Temperature
(A Grade) - Adjustable 1.23-V to 29-V Output Voltage Available (LP2954IM and LP2954AIM)
- Ensured 250-mA Output Current
- Extremely Low Quiescent Current
- Low Dropout Voltage
- Reverse Battery Protection
- Extremely Tight Line and Load Regulation
- Very Low Temperature Coefficient
- Current and Thermal Limiting
- Pin Compatible with LM2940 and LM340
(5-V Version Only) - Adjustable Version Adds ERROR Flag to Warn of Output Drop and a Logic-Controlled Shutdown
The LP2954 is a 5-V micropower LDO with very low quiescent current (90 μA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light loads and 470 mV at 250-mA load current).
The quiescent current increases only slightly at dropout (120 μA typical), which prolongs battery life.
The LP2954 with a fixed 5-V output is available in three-pin TO-220 and DDPAK/TO-263 packages. The adjustable LP2954 is provided in an 8-pin, small-outline SOIC package. The adjustable version also provides a resistor network which can be pin strapped to set the output to any voltage from to 1.23 V to 29 V.
Reverse battery protection is provided for the IN pin.
The tight line and load regulation (0.04% typical), as well as very low output temperature coefficient make the LP2954 well suited for use as a low-power voltage reference.
Output accuracy is ensured at both room temperature and over the entire operating temperature range.
For all available packages, see the orderable addendum at the end of the data sheet.技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LP2954, LP2954A 5-V and Adjustable Micropower LDOs datasheet (Rev. E) | PDF | HTML | 2016年 7月 28日 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| SOIC (D) | 8 | 檢視選項 |
| TO-220 (NDE) | 3 | 檢視選項 |
| TO-263 (KTT) | 3 | 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
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。