NCV2951: Linear Voltage Regulator, LDO, Low Power, 100 mA

The LP2950 and LP2951 are micropower low dropout (LDO) linear voltage regulators that are specifically designed to maintain proper regulation with an extremely low input-to-output voltage differential. These devices feature a very low quiescent bias current of 75 µA and are capable of supplying output currents in excess of 100 mA. Internal current and thermal limiting protection is provided.The LP2951 LDO linear voltage regulator has three additional features. The first is the Errorbar Output that can be used to signal external circuitry of an out of regulation condition, or as a microprocessor power-on reset. The second feature allows the output voltage to be preset to 5.0 V, 3.3 V or 3.0 V output (depending on the version) or programmed from 1.25 V to 29 V. It consists of a pinned out resistor divider along with direct access to the Error Amplifier feedback input. The third feature is a Shutdown input that allows a logic level signal to turn-off or turn-on the regulator output. Due to the low input-to-output voltage differential and bias current specifications, these devices are ideally suited for battery powered computer, consumer, and industrial equipment where an extension ofuseful battery life is desirable. The LP2950 is available in the three pin case 29 and DPAK packages, and the LP2951 is available in the eight pin dual-in-line, SO-8 and Micro-8 surface mount packages.The 'A' suffix devices feature an initial output voltage tolerance +/-0.5%.

特性
  • Low Quiescent Bias Current of 75 mA
  • Low Input-to-Output Voltage Differential of 50 mV at 100 mA and 380 mV at 100 mA
  • 5.0 V, 3.3 V or 3.0 V +/- 0.5% Allows Use as a Regulator or Reference
  • Extremely Tight Line and Load Regulation
  • Requires Only a 1.0 mF Output Capacitor for Stability
  • Internal Current and Thermal Limiting
  • LP2951 also has Error(bar) Output Signals an Out of Regulation Condition
  • LP2951 also has Output Programmable from 1.25 V to 29 V
  • LP2951 also has Logic Level Shutdown Input
  • Pb-Free Packages are Available
应用
  • Automotive
辅助小册子 (1)
Document TitleDocument ID/SizeRevisionRevision Date
Automotive Products Selector GuideSGD516/D (1405kB)16May, 2014
封装图纸 (1)
Document TitleDocument ID/SizeRevision
SOIC-8 Narrow Body751-07 (62.6kB)AK
产品订购型号
产品状况Compliance具体说明封装MSL*容器预算价格 (1千个数量的单价)
NCV2951ACD3.3R2GActiveAEC Qualified PPAP Capable Pb-free Halide freeLinear Voltage Regulator, LDO, Low Power, 100 mA, Vout: 3.3 V; ±0.5%SOIC-8751-071Tape and Reel2500$0.4533
NCV2951ACDR2GActiveAEC Qualified PPAP Capable Pb-free Halide freeLinear Voltage Regulator, LDO, Low Power, 100 mA, Vout: 5.0 V or Adj; ±0.5%SOIC-8751-071Tape and Reel2500$0.4533
NCV2951CDR2GActiveAEC Qualified PPAP Capable Pb-free Halide freeLinear Voltage Regulator, LDO, Low Power, 100 mA, Vout: 5.0 V or Adj; ±1.0%SOIC-8751-071Tape and Reel2500$0.44
订购产品技术参数
ProductOutputPolarityVO (V)IO Typ (A)VI Max (V)VDO Typ (V)Iq Typ (mA)PSRR (dB)Noise (µVrms)
NCV2951ACD3.3R2GSinglePositiveAdjustable0.1300.350.09356
NCV2951ACDR2GSinglePositiveAdjustable0.1300.350.09356
NCV2951CDR2GSinglePositiveAdjustable0.1300.350.09356
100 mA, Low Power Low Dropout Voltage Regulator (223kB) LP2951
Automotive Products Selector Guide NUP2105
SOIC-8 Narrow Body CM1216