 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| 0.1A LOW DROPOUT VOLTAGE REGULATORS Features 3-Terminal regulators 0.1A output within 2% over temperature Very low quiescent current Low dropout voltage (300mv Type) Extermely tight load and line regulation Very low temperature coefficent Current and thermal limiting Unregulated DC input canwithstand -20V revers battery and +60V positive transients - LM2931 TO-92 Applications - High-efficiency linear regulator - Battery powerd system - Portable/Palm top/Notebook computer - Portable consumer equipment - Portable Instrumentation - Avionics - Automotive Electronics - SMPS Post-Regulator 1. Vout 2. Gnd 3. Vin 1 ORDERING INFORMATION DEVICE LM2931L-XX PKG TO-92 (XX= Output Voltage=3.3, 5.0, 8.0, 8.5 9.0 10.0, 12.0,15.0V, Adjustable=AD ) PRODUCT DESCRIPTION The LM2931 is a low power voltage regulator. This device excellent choice for use in battery powered. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life. The LM2931 features very low quiescent current (100 Typ.) and very low drop output voltage (Typ. 60 at light load and 300 at 100). This includes a tight initial tolerance of 0.5% Typ., extremely good load and line regulation of 0.05% Typ., and very low output temperature coefficient. The LM2931 fixed-voltage and andjustable regulators is offered in 3-pin TO-92 package compatible with other fixed regulator. BLOCK DIAGRAM AND TYPICAL APPLICATIONS UNREGULATED DC INPUT OUTPUT + - VOUT 100 MAX 3.3 60K GROUND - + 1.23V REFERENCE ERROR AMPLIFIER + HTC 1 0.1A LOW DROPOUT VOLTAGE REGULATORS ABSOLUTE MAXIMUM RATINGS POWER DISSIPATION Lead Temperature (Soldering, 5 seconds) Storage Temperature Range Operating Junction Temperature Range Input Supply Voltage INTERNALLY LIMITED 260 -65 to +150 -55 to +150 -20 to +30V LM2931 ELECTRICAL CHARACTERISTICS(at Tj=25, Io=100, Vin=14V, Co=100 ; unless otherwise noted) PARAMETER Output Voltage (Fixed Model) Output Voltage (Fixed Model) Input Supply Voltage Output Voltage Temperature Coefficient Line Regulation (Note 2) Load Regulation (Note 2) Dropout Voltage (Note 4) (Note 1) 13VVIN26V (Note 3) 1mAIL 100 IL =10mA IL =100 IL =100 Ground Current (Note 5) Dropout Ground Current (Note 5) Current Limit Thermal Regulation (Note 6) CL =2.2 Output Noise, 10Hz to 100kHz IL = 10 mA Shutdown Input Input Logic Voltage Shutdown Pin Input Current Low (Regulator ON) High (Regulator OFF) VS=2.4V VS=26V (Note 8) 5.0VVOUT15.0V 3.3VVOUT5.0V 2.0VVOUT3.3V 2 30 450 50 600 10 20 30 1.3 0.7 V CL =3.3 CL =33 IL =10 IL =100 VIN=V0-0.5V, IL =100 VOUT=0 50 0.1 0.1 60 300 100 0.9 8 110 160 0.05 500 350 120 Vr CONDITIONS (Note 2) -25 TJ 85 Full Operating Temperature 100IL 100,TJTJMAX MIN 0.985V0 0.980V0 0.975V0 TYP V0 V0 MAX 1.015V0 1.020V0 1.025V0 26 150 0.4 0.3 200 600 150 1.5 12 170 200 0.2 ppm/ % % %/W V UNITS Regulator Output Current Shutdown Note 1 : Output or reference voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range. Note 2 : Regulations is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. Note 3 : Line regulation is tested at 150 for IL = 1mA. For IL = 100 and TJ = 125, line regulation is guaranteed by value measured at 1V differential. Note 4 : Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. Note 5 : Ground pin current is the regulator quiescent current. The Total current drawn from the source is the sum of the ground pin current and output load current. Note 6 : Thermal Regulation is the change in output voltage at a time T after a change in power dissipation, excluding load or line regulation effects. Specifications are for a 50mA load puls (1.25W) for T = 10ms Note 7 : V REFVOUT(VIN-1V), 2.3VV IN26V, 100I L100, T JTJMAX Note 8 : Vshuntdown2V, V IN26V, Vout0V HTC 2 |
Price & Availability of LM2931L-50
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |