LP2951: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown

Description: The LP2950 and LP2951 are micropower low dropout (...
  • 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%.
  • Features
  • Wide Input Range: Up to 30 V - Enables use with 24V rail
  • Rated Output Current of 100 mA - Sufficient power capability for MCU
  • Low Dropout 50 mV at 100 mA and 380 mV at 100 mA - Lower thermal impact than Vreg
  • Low Quiescent Current: 75 µA (Typ) - Longer battery life
  • Requires Only a 1.0 mF Output Capacitor for Stability - Small size, low cost system
  • Internal Current and Thermal Limiting - Built-in protection features
  • LP2951 also has Error(bar) Output Signals an Out of Regulation Condition - Enhanced protection capability
  • LP2951 also has Output Programmable from 1.25 V to 29 V - Flexibility for various end product applications
  • LP2951 also has Logic Level Shutdown Input - Enhanced protection capability
  • Extremely Tight Line and Load Regulation - Accurate system level design capability
  • 5.0 V, 3.3 V or 3.0 V +/- 0.5% - Allows Use as a Regulator or Reference
  • Applications
  • Automotive
  • Avionics: RADAR
  • End Products
  • AC Analog Input Module
  • Logistics Robot CPU Board
  • Optical Line Card
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    LP2951ACD-3.0G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.0 V; 0.5%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 98
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Avnet:<100
  • Digikey:>1K
  • Mouser:>1K
  • LP2951ACD-3.0R2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.0 V; 0.5%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Mouser:>1K
  • Newark:>1K
  • LP2951ACD-3.3G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.3 V; 0.5%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 98
  • LP2951ACD-3.3R2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.3 V; 0.5%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • LP2951ACDG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 5.0 or Adj.; 0.5%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 98
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Avnet:>1K
  • Digikey:>1K
  • FutureElectronics:>1K
  • Mouser:>1K
  • Newark:>1K
  • LP2951ACDM-3.0RG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.0 V; 0.5%
  • Package Type: Micro8™
  • Package Case Outline: 846A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 4000
  • LP2951ACDM-3.3RG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.3 V; 0.5%
  • Package Type: Micro8™
  • Package Case Outline: 846A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 4000
  • LP2951ACDMR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 5.0 or Adj.; 0.5%
  • Package Type: Micro8™
  • Package Case Outline: 846A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 4000
  • Inventory

  • Market Leadtime (weeks):17 to 20
  • Arrow:0
  • Digikey:>10K
  • FutureElectronics:>1K
  • Mouser:>10K
  • PandS:<1K
  • LP2951ACDR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 5.0 or Adj.; 0.5%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • Newark:>1K
  • Newark:>1K
  • PandS:>10K
  • LP2951ACN-3.0G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.0 V; 0.5%
  • Package Type: PDIP-8
  • Package Case Outline: 626-05
  • MSL: NA
  • Container Type: TUBE
  • Container Qty: 50
  • LP2951ACN-3.3G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.3 V; 0.5%
  • Package Type: PDIP-8
  • Package Case Outline: 626-05
  • MSL: NA
  • Container Type: TUBE
  • Container Qty: 50
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:<1K
  • Mouser:<1K
  • Newark:<1K
  • LP2951ACNG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 5.0 or Adj.; 0.5%
  • Package Type: PDIP-8
  • Package Case Outline: 626-05
  • MSL: NA
  • Container Type: TUBE
  • Container Qty: 50
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • Newark:<1K
  • Newark:<1K
  • LP2951CD-3.0G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.0 V; 1.0%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 98
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • LP2951CD-3.0R2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.0 V; 1.0%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • LP2951CD-3.3G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.3 V; 1.0%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 98
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • Mouser:<1K
  • Newark:>1K
  • LP2951CD-3.3R2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.3 V; 1.0%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>1K
  • Newark:>1K
  • PandS:<1K
  • LP2951CDG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 5.0 or Adj.; 1.0%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: TUBE
  • Container Qty: 98
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Avnet:>1K
  • Digikey:>1K
  • FutureElectronics:>1K
  • Mouser:>1K
  • PandS:<100
  • LP2951CDM-3.0R2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.0 V; 1.0%
  • Package Type: Micro8™
  • Package Case Outline: 846A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 4000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • LP2951CDM-3.3R2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.3 V; 1.0%
  • Package Type: Micro8™
  • Package Case Outline: 846A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 4000
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>1K
  • Mouser:>10K
  • Newark:>1K
  • PandS:>10K
  • LP2951CDMR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 5.0 or Adj.; 1.0%
  • Package Type: Micro8™
  • Package Case Outline: 846A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 4000
  • Inventory

  • Market Leadtime (weeks):8 to 12
  • Arrow:0
  • Digikey:<1K
  • FutureElectronics:>1K
  • Mouser:>1K
  • Newark:>1K
  • LP2951CDR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 5.0 or Adj.; 1.0%
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Digikey:>10K
  • Mouser:>1K
  • Newark:<100
  • LP2951CN-3.0G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.0 V; 1.0%
  • Package Type: PDIP-8
  • Package Case Outline: 626-05
  • MSL: NA
  • Container Type: TUBE
  • Container Qty: 50
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Mouser:>1K
  • LP2951CN-3.3G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 3.3 V; 1.0%
  • Package Type: PDIP-8
  • Package Case Outline: 626-05
  • MSL: NA
  • Container Type: TUBE
  • Container Qty: 50
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Avnet:<1K
  • Digikey:<1K
  • Mouser:>1K
  • LP2951CNG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Linear Voltage Regulator, LDO, 30V, 100mA Micropower Voltage Regulators with Shutdown, Vout: 5.0 or Adj.; 1.0%
  • Package Type: PDIP-8
  • Package Case Outline: 626-05
  • MSL: NA
  • Container Type: TUBE
  • Container Qty: 50
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Avnet:<1K
  • Mouser:<1K
  • Newark:<1K
  • Packages
    Specifications
  • Output: Single 
  • Polarity: Positive 
  • VO (V): 3.3  Adjustable 
  • IO Typ (A): 0.1 
  • VI Min (V): 2.3 
  • VI Max (V): 30 
  • VDO Typ (V): 0.35 
  • Iq Typ (mA): 0.093 
  • PSRR (dB): 48 
  • Noise (µVrms): 56 
  • Enable: Yes 
  • PowerGood: Yes 
  • Package Type: SOIC-8  Micro8™  PDIP-8 
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