- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：线性和低压降 (LDO) 稳压器
- 功能描述：可调节微功耗稳压器系列
- 点击这里打开及下载LP2951JAN的技术文档资料
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The LP2951 is a micropower voltage regulator with very low quiescent current (75μA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at 100mA). It is ideally suited for use in battery-powered systems. Furthermore, the quiescent current increases only slightly in dropout, prolonging battery life.
An additional feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5V, 3V, or 3.3V output (depending on the version), or programmed from 1.24V to 29V with an external pair of resistors.
Careful design of the LP2951 has minimized all contributions to the error budget. This includes a tight initial tolerance (0.5% typ.), extremely good load and line regulation (0.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.
- High Accuracy Output Voltage
- Ensured 100mA Output Current
- Extremely Low Quiescent Current
- Low Dropout Voltage
- Extremely Tight Load and Line Regulation
- Very Low Temperature Coefficient
- Use as Regulator or Reference
- Needs Minimum Capacitance for Stability
- Current and Thermal Limiting
- Stable with Low-ESR Output Capacitors (10m? to 6?)
- Error Flag Warns of Output Dropout
- Logic-Controlled Electronic Shutdown
- Output Programmable from 1.24 to 29V
All trademarks are the property of their respective owners.
- Output options
- Adjustable Output, Fixed Output
- Iout (Max) (A)
- 0.1
- Vin (Max) (V)
- 30
- Vin (Min) (V)
- 2
- Vout (Max) (V)
- 29
- Vout (Min) (V)
- 1.2
- Fixed output options (V)
- 3, 3.3, 5
- Noise (uVrms)
- 160
- Iq (Typ) (mA)
- 0.075
- Thermal resistance θJA (°C/W)
- 52
- Rating
- Military
- Load capacitance (Min) (μF)
- 1
- Regulated outputs (#)
- 1
- Features
- Enable, Power good
- Accuracy (%)
- 3
- PSRR @ 100 KHz (dB)
- 57
- Dropout voltage (Vdo) (Typ) (mV)
- 380
- Operating temperature range (C)
- -55 to 125
LP2951JAN的完整型号有：5962-3870501BPA、JL2951BPA，以下是这些产品的关键参数及官网采购报价：
5962-3870501BPA，工作温度：-55 to 125，封装：CDIP (NAB)-8，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：SNPB，TI官网5962-3870501BPA的批量USD价格：35.266（1000+）
JL2951BPA，工作温度：-55 to 125，封装：CDIP (NAB)-8，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：SNPB，TI官网JL2951BPA的批量USD价格：35.266（1000+）
5962-3870501BPA，工作温度：-55 to 125，封装：CDIP (NAB)-8，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：SNPB，TI官网5962-3870501BPA的批量USD价格：35.266（1000+）
JL2951BPA，工作温度：-55 to 125，封装：CDIP (NAB)-8，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：SNPB，TI官网JL2951BPA的批量USD价格：35.266（1000+）
