LP3991

PinoutSpecificationsOutput Current300 mAOutput Min1.3, 1.2, 2.8, 1.5 VoltInput Min Voltage1.65 VoltInput Max Voltage3.6 VoltDropout Voltage0.075 VoltAdjustable OutputNoQuiescent Current0.05 mAOn/Off PinYesError FlagNoRegTypeLDOTemperature Min-40 deg CTemperature Max125 deg CSpecial FeaturesLow Inp...

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LP3991 Picture
SeekIC No. : 004398925 Detail

LP3991: PinoutSpecificationsOutput Current300 mAOutput Min1.3, 1.2, 2.8, 1.5 VoltInput Min Voltage1.65 VoltInput Max Voltage3.6 VoltDropout Voltage0.075 VoltAdjustable OutputNoQuiescent Current0.05 mAOn/Off...

floor Price/Ceiling Price

Part Number:
LP3991
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/27

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Product Details

Description



Pinout




Specifications

Output Current300 mA
Output Min1.3, 1.2, 2.8, 1.5 Volt
Input Min Voltage1.65 Volt
Input Max Voltage3.6 Volt
Dropout Voltage0.075 Volt
Adjustable OutputNo
Quiescent Current0.05 mA
On/Off PinYes
Error FlagNo
RegTypeLDO
Temperature Min-40 deg C
Temperature Max125 deg C
Special FeaturesLow Input Voltage
Output Voltage1.3, 1.2, 2.8, 1.5 Volt
Output Max1.3, 1.2, 2.8, 1.5 Volt
PowerWiseYes
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Description

Operating from a minimum input voltage of 1.65V, the LP3991 regulator has been designed to provide fixed stable output voltages for load currents up to 300mA. This device is suitable where accurate, low voltages are required from low input voltage sources and is therefore suitable for post regulation of switched mode regulators. In such applications, significant improvements in performance and EMI can be realized, with little reduction in overall efficiency. The LP3991 will provide fixed outputs as low as 1.2V from a wide input range of 1.65V to 4.0V Using the enable pin, the device may be controlled to provide a shutdown state, in which negligible supply current is drawn.

The LP3991 is designed to be stable with space saving ceramic capacitors as small as 0402 case size.

Performance is specified for a -40°C to 125°C junction temperature range.

For output voltage options please contact your local NSC sales office.

Reliability Metrics


Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LP3991TL-0.8 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-1.2 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-1.3 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-1.5 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-1.55 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-1.7 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-1.8 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-2.0 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-2.5 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-2.8 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TL-3.0 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-0.8 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-1.2 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-1.3 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-1.5 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-1.55 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-1.7 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-1.8 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-2.0 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-2.5 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-2.8 CMOS7 0 16561 0 0 954000 4 270700104
LP3991TLX-3.0 CMOS7 0 16561 0 0 954000 4 270700104

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Design Tools


Title Size in Kbytes Date    
How to Solve for LDO Regulator-Enabled Glitch     View    

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Application Notes


Title Size in Kbytes Date
AN-1416: Application Note 1416 LP3991TL micro SMD Evaluation Board Information 1212 Kbytes 11-Mar-07 Download
AN-1416 (Chinese): Application Note 1416 LP3991TL micro SMD Evaluation Board Information
210 Kbytes   640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram">

If you have trouble printing or viewing PDF file(s), see Printing Problems.

More Application Notes


Title Size in Kbytes Date
AN-1342: Application Note 1342 LP3994 microSMD Evaluation Board Information 79 Kbytes 13-Oct-04 Download
AN-1377: Application Note 1377 LP3996 / LP5996 Application Board Information 514 Kbytes 3-Nov-06 Download
AN-1377 (Chinese): Application Note 1377 LP3996 / LP5996 Application Board Information
232 Kbytes   640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram">

If you have trouble printing or viewing PDF file(s), see Printing Problems.




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