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Series Information for LP2951CSD - Texas Instruments


  • feature
    5-V, 3-V, and 3.3-V Output Voltage Versions Available
  • feature
    Current and Thermal Limiting
  • feature
    Ensured 100-mA Output Current
  • feature
    Extremely Low Quiescent Current
  • feature
    Extremely Tight Load and Line Regulation
  • feature
    High Accuracy Output Voltage
  • feature
    Input Voltage Range: 2.3 V to 30 V
  • feature
    LP2951-N Versions Only:
  • feature
    Low Dropout Voltage
  • feature
    Needs Minimum Capacitance for Stability
  • feature
    Stable With Low-ESR Output Capacitors (10 mu2126 to 6 u2126)
  • feature
    Use as Regulator or Reference
  • feature
    Very Low Temperature Coefficient


V REG LDO ADJ +1.24/29V SMD 2951
The LP2950-N and LP2951-N are micropower voltage regulators with very low quiescent current (75 μA typical) and very low dropout voltage (typical 40 mV at light loads and 380 mV at 100 mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the LP2950N/LP2951-N increases only slightly in dropout, prolonging battery life. Careful design of the LP2950-N/LP2951-N has minimized all contributions to the error budget. This includes a tight initial tolerance (0.5% typ.), extremely good load and line regulation (.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference. One such 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 5-V, 3-V, or 3.3-V output (depending on the version), or programmed from 1.24 V to 29 V with an external pair of resistors. The LP2950-N is available in the surface-mount TO252 package and in the popular 3-pin TO-92 package for pin-compatibility with older 5-V regulators. The 8lead LP2951-N is available in plastic, ceramic dual-inline, WSON, or metal can packages and offers additional system functions.


Output Type:
Input Voltage Min:
Input Voltage Max:
Fixed Output Voltage Nom.:
Adjustable Output Voltage Min:
Adjustable Output Voltage Max:
Output Current:
Dropout Voltage Vdo:
LDO Regulator Case Style:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 3 - 168 hours
No SVHC (27-Jun-2018)
IC Generic Number:
No. of Outputs:
Output Voltage Adjustable Range:
1.24V to 29V
Output Voltage Max:
Output Voltage Min:
Termination Type:
Surface Mount Device
Voltage Regulator Type:
LDO Adjustable Positive

Alternate Descriptions

Avnet Europe

LDO Regulator Pos 5V 0.1A 8-Pin LLP EP T/R

Avnet Europe product