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LP2950: LDO Regulator, 100 mA, Low Power

Datasheet: Voltage Regulator - Low Power Low, Dropout 100 mA
Rev. 31 (255kB)
Product Overview
»View Reliability Data
»View Material Composition
» Product Change Notification
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
 
  • 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
Applications
  • Automotive
Technical Documentation & Design Resources
Collateral Brochures (1) Package Drawings (2)
Data Sheets (1)  
Availability & Samples
Specifications
Case Outlines
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
LP2950ACDT-3.0G Active
Pb-free
Halide free
LP2950, Vout: 3.0 V; 0.5% DPAK-3 369C 1 260 Tube 75 $0.24
LP2950ACDT-3.3RG Active
Pb-free
Halide free
LP2950, Vout: 3.3 V; 0.5% DPAK-3 369C 1 260 Tape and Reel 2500 $0.1924
LP2950ACDT-3RKG Active
Pb-free
Halide free
LP2950, Vout: 3.0 V; 0.5% DPAK-3 369C 1 260 Tape and Reel 2500 $0.24
LP2950ACDT-5.0G Active
Pb-free
Halide free
LP2950, Vout: 5.0 V; 0.5% DPAK-3 369C 1 260 Tube 75 $0.2801
LP2950ACDT-5RKG Active
Pb-free
Halide free
LP2950, Vout: 5.0 V; 0.5% DPAK-3 369C 1 260 Tape and Reel 2500 $0.2647
LP2950ACZ-3.0G Active
Pb-free
Halide free
LP2950, Vout: 3.0 V; 0.5% TO-92 29-11 NA Bulk Bag 2000 $0.1544
LP2950ACZ-3.0RAG Active
Pb-free
Halide free
LP2950, Vout: 3.0 V; 0.5% TO-92 29-11 NA Tape and Reel 2000 $0.2667
LP2950ACZ-3.3G Active
Pb-free
Halide free
LP2950, Vout: 3.3 V; 0.5% TO-92 29-11 NA Bulk Bag 2000 $0.2667
LP2950ACZ-3.3RAG Active
Pb-free
Halide free
LP2950, Vout: 3.3 V; 0.5% TO-92 29-11 NA Tape and Reel 2000 $0.2667
LP2950ACZ-5.0G Active
Pb-free
Halide free
LP2950, Vout: 5.0 V; 0.5% TO-92 29-11 NA Bulk Bag 2000 $0.2667
LP2950ACZ-5.0RAG Active
Pb-free
Halide free
LP2950, Vout: 5.0 V; 0.5% TO-92 29-11 NA Tape and Reel 2000 $0.3333
LP2950CDT-3.0G Active
Pb-free
Halide free
LP2950, Vout: 3.0 V; 1.0% DPAK-3 369C 1 260 Tube 75 $0.3045
LP2950CDT-3.0RKG Active
Pb-free
Halide free
LP2950, Vout: 3.0 V; 1.0% DPAK-3 369C 1 260 Tape and Reel 2500 $0.24
LP2950CDT-3.3G Active
Pb-free
Halide free
LP2950, Vout: 3.3 V; 1.0% DPAK-3 369C 1 260 Tube 75 $0.2623
LP2950CDT-3.3RKG Active
Pb-free
Halide free
LP2950, Vout: 3.3 V; 1.0% DPAK-3 369C 1 260 Tape and Reel 2500 $0.2201
LP2950CDT-5.0G Active
Pb-free
Halide free
LP2950, Vout: 5.0 V; 1.0% DPAK-3 369C 1 260 Tube 75 $0.2137
LP2950CDT-5.0RKG Active
Pb-free
Halide free
LP2950, Vout: 5.0 V; 1.0% DPAK-3 369C 1 260 Tape and Reel 2500 $0.2201
LP2950CZ-3.0G Active
Pb-free
Halide free
LP2950, Vout: 3.0 V; 1.0% TO-92 29-11 NA Bulk Bag 2000 $0.2667
LP2950CZ-3.0RAG Active
Pb-free
Halide free
LP2950, Vout: 3.0 V; 1.0% TO-92 29-11 NA Tape and Reel 2000 $0.2667
LP2950CZ-3.3G Active
Pb-free
Halide free
LP2950, Vout: 3.3 V; 1.0% TO-92 29-11 NA Bulk Bag 2000 $0.2667
LP2950CZ-3.3RAG Active
Pb-free
Halide free
LP2950, Vout: 3.3 V; 1.0% TO-92 29-11 NA Tape and Reel 2000 $0.2667
LP2950CZ-5.0G Active
Pb-free
Halide free
LP2950, Vout: 5.0 V; 1.0% TO-92 29-11 NA Bulk Bag 2000 $0.2667
LP2950CZ-5.0RAG Active
Pb-free
Halide free
LP2950, Vout: 5.0 V; 1.0% TO-92 29-11 NA Tape and Reel 2000 $0.2667
LP2950CZ-5.0RPG Active
Pb-free
Halide free
LP2950, Vout: 5.0 V; 1.0% TO-92 29-11 NA Fan-Fold 2000 $0.2779
Market Leadtime (weeks) : 4 to 8
Avnet   (2020-08-19 00:00) : >1K
ON Semiconductor   (2020-09-02 00:00) : 300
Market Leadtime (weeks) : 8 to 12
FutureElectronics   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : 8 to 12
PandS   (2020-09-14 00:00) : >1K
ON Semiconductor   (2020-09-02 00:00) : 5,000
Market Leadtime (weeks) : 2 to 4
FutureElectronics   (2020-08-19 00:00) : >1K
Avnet   (2020-08-19 00:00) : >10K
ON Semiconductor   (2020-09-02 00:00) : 7,950
Market Leadtime (weeks) : 13 to 16
FutureElectronics   (2020-08-19 00:00) : >10K
PandS   (2020-09-14 00:00) : >1K
Avnet   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >10K
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 4,350
Market Leadtime (weeks) : 8 to 12
FutureElectronics   (2020-08-19 00:00) : <1K
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : 8 to 12
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : 13 to 16
FutureElectronics   (2020-08-19 00:00) : >1K
Avnet   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : 8 to 12
FutureElectronics   (2020-08-19 00:00) : >1K
Avnet   (2020-08-19 00:00) : <100
Market Leadtime (weeks) : 13 to 16
Avnet   (2020-08-19 00:00) : >10K
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
ON Semiconductor   (2020-09-02 00:00) : 4,000
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >10K

Product
Description
Pricing ($/Unit)
Compliance
Status
Output
Polarity
VO (V)
IO Typ (A)
VI Min (V)
VI Max (V)
VDO Typ (V)
Iq Typ (mA)
PSRR (dB)
Noise (µVrms)
Enable
PowerGood
Application
Package Type
LP2950ACDT-3.0G  
 $0.24 
Pb
H
 Active   
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950ACDT-3.3RG  
 $0.1924 
Pb
H
 Active   
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950ACDT-3RKG  
 $0.24 
Pb
H
 Active   
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950ACDT-5.0G  
 $0.2801 
Pb
H
 Active   
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950ACDT-5RKG  
 $0.2647 
Pb
H
 Active   
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950ACZ-3.0G  
 $0.1544 
Pb
H
 Active   
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950ACZ-3.0RAG  
 $0.2667 
Pb
H
 Active   
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950ACZ-3.3G  
 $0.2667 
Pb
H
 Active   
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950ACZ-3.3RAG  
 $0.2667 
Pb
H
 Active   
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950ACZ-5.0G  
 $0.2667 
Pb
H
 Active   
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950ACZ-5.0RAG  
 $0.3333 
Pb
H
 Active   
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950CDT-3.0G  
 $0.3045 
Pb
H
 Active   
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950CDT-3.0RKG  
 $0.24 
Pb
H
 Active   
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950CDT-3.3G  
 $0.2623 
Pb
H
 Active   
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950CDT-3.3RKG  
 $0.2201 
Pb
H
 Active   
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950CDT-5.0G  
 $0.2137 
Pb
H
 Active   
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950CDT-5.0RKG  
 $0.2201 
Pb
H
 Active   
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
DPAK-3
LP2950CZ-3.0G  
 $0.2667 
Pb
H
 Active   
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950CZ-3.0RAG  
 $0.2667 
Pb
H
 Active   
Single
Positive
3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950CZ-3.3G  
 $0.2667 
Pb
H
 Active   
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950CZ-3.3RAG  
 $0.2667 
Pb
H
 Active   
Single
Positive
3.3
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950CZ-5.0G  
 $0.2667 
Pb
H
 Active   
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950CZ-5.0RAG  
 $0.2667 
Pb
H
 Active   
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
LP2950CZ-5.0RPG  
 $0.2779 
Pb
H
 Active   
Single
Positive
5
0.1
3.1
30
0.35
0.093
48
56
No
No
Industrial
TO-92
Case Outlines
29-11    369C   
Packages
LP2950: LDO Regulator, 100 mA, Low Power
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