- 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：具有电源正常指示和使能功能的汽车类 100mA、30V、低压降稳压器
- 点击这里打开及下载LP2951-Q1的技术文档资料
- TI代理渠道，提供当日发货、严格的质量标准，满足您的目标价格
The LP2951-xx-Q1 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input supply-voltage range of up to 35 V. The 8-pin LP2951-xx-Q1 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951-xx-Q1 outputs a fixed 5 V and 3.3 V (depending on the version). Alternatively, by leaving the SENSE and VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235 V to 30 V.
The 8-pin LP2951-xx-Q1 also offers additional functionality that makes it particularly suitable for battery-powered applications. For example, a logic-compatible shutdown feature allows the regulator to be put in standby mode for power savings. In addition, there is a built-in supervisor reset function in which the ERROR output goes low when VOUT drops by 6% of its nominal value for whatever reasons – due to a drop in VIN, current limiting, or thermal shutdown.
The LP295x-xx-Q1 devices are designed to minimize all error contributions to the output voltage. With a tight output tolerance (0.5% at 25°C), a very low output voltage temperature coefficient (20 ppm typical), extremely good line and load regulation (0.3% and 0.4% typical), and remote sensing capability, the parts can be used as either low-power voltage references or 100-mA regulators.
- Qualified for Automotive Applications
- Wide Input Range: Up to 35 V
- Rated Output Current of 100 mA
- Low Dropout: 380 mV (Typ) at 100 mA
- Low Quiescent Current: 75 μA (Typ)
- Tight Line Regulation: 0.03% (Typ)
- Tight Load Regulation: 0.04% (Typ)
- High VO Accuracy
- 1.4% at 25°C
- 2% Over Temperature
- Can Be Used as a Regulator or Reference
- Stable With Low ESR (>12mΩ) Capacitors
- Current- and Thermal-Limiting Features
- 8-Pin Package
- Fixed Voltages: 5V/ADJ and 3.3V/ADJ
- Low-Voltage Error Signal on Falling Output
- Shutdown Capability
- Remote Sense Capability for Optimal Output Regulation and Accuracy
- Output options
- Fixed Output
- Iout (Max) (A)
- 0.1
- Vin (Max) (V)
- 30
- Vin (Min) (V)
- 2
- Vout (Max) (V)
- 29
- Vout (Min) (V)
- 3.3
- Fixed output options (V)
- 3.3, 5
- Noise (uVrms)
- 430
- Iq (Typ) (mA)
- 0.075
- Thermal resistance θJA (°C/W)
- 56
- TI functional safety category
- Functional Safety-Capable
- Rating
- Automotive
- Load capacitance (Min) (μF)
- 1
- Regulated outputs (#)
- 1
- Features
- Enable, Power good
- Accuracy (%)
- 3
- PSRR @ 100 KHz (dB)
- 54
- Dropout voltage (Vdo) (Typ) (mV)
- 380
- Operating temperature range (C)
- -40 to 125
LP2951-Q1的完整型号有：LP2951-33QDRGRQ1、LP2951-50QDRGRQ1、LP2951-50QDRQ1，以下是这些产品的关键参数及官网采购报价：
LP2951-33QDRGRQ1，工作温度：-40 to 125，封装：SON (DRG)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网LP2951-33QDRGRQ1的批量USD价格：0.238（1000+）
LP2951-50QDRGRQ1，工作温度：-40 to 125，封装：SON (DRG)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网LP2951-50QDRGRQ1的批量USD价格：0.238（1000+）
LP2951-50QDRQ1，工作温度：-40 to 125，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网LP2951-50QDRQ1的批量USD价格：0.238（1000+）
LP2951-33QDRGRQ1，工作温度：-40 to 125，封装：SON (DRG)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网LP2951-33QDRGRQ1的批量USD价格：0.238（1000+）
LP2951-50QDRGRQ1，工作温度：-40 to 125，封装：SON (DRG)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网LP2951-50QDRGRQ1的批量USD价格：0.238（1000+）
LP2951-50QDRQ1，工作温度：-40 to 125，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网LP2951-50QDRQ1的批量USD价格：0.238（1000+）
