Datasheets
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LT1521CS8 by:
Linear Technology

Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8

Part Details for LT1521CS8 by Linear Technology

Results Overview of LT1521CS8 by Linear Technology

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Energy and Power Systems Transportation and Logistics Renewable Energy Automotive

LT1521CS8 Information

LT1521CS8 by Linear Technology is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for LT1521CS8

Part # Distributor Description Stock Price Buy
Bristol Electronics   4007
RFQ
Bristol Electronics   Min Qty: 1 159
  • 1 $5.6000
  • 6 $3.6400
  • 15 $2.8000
  • 46 $2.6135
  • 97 $2.4265
$2.4265 / $5.6000 Buy Now
Bristol Electronics   76
RFQ
Bristol Electronics   Min Qty: 1 25
  • 1 $9.5063
  • 6 $7.1297
  • 16 $6.4168
$6.4168 / $9.5063 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+3.8V TO +20V,BIPOLAR,SOP,8PIN,PLASTIC 3204
  • 1 $5.2500
  • 880 $2.1000
  • 1,430 $1.8375
$1.8375 / $5.2500 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+3.8V TO +20V,BIPOLAR,SOP,8PIN,PLASTIC 127
  • 1 $7.5000
  • 6 $3.7500
  • 54 $3.5000
$3.5000 / $7.5000 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+3.8V TO +20V,BIPOLAR,SOP,8PIN,PLASTIC 111
  • 1 $5.2500
  • 20 $3.5000
  • 72 $3.2375
$3.2375 / $5.2500 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+3.8V TO +20V,BIPOLAR,SOP,8PIN,PLASTIC 99
  • 1 $6.3000
  • 17 $4.2000
  • 61 $3.8850
$3.8850 / $6.3000 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+3.8V TO +20V,BIPOLAR,SOP,8PIN,PLASTIC 40
  • 1 $10.3557
  • 11 $6.9038
  • 37 $6.3860
$6.3860 / $10.3557 Buy Now
Quest Components IC,VOLT REGULATOR,ADJUSTABLE,+3.8V TO +20V,BIPOLAR,SOP,8PIN,PLASTIC 20
  • 1 $12.6750
  • 5 $9.5063
$9.5063 / $12.6750 Buy Now

US Tariff Estimator: LT1521CS8 by Linear Technology

Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.

LT1521CS8
Linear Technology
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Part Details for LT1521CS8

LT1521CS8 CAD Models

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LT1521CS8 Part Data Attributes

LT1521CS8 Linear Technology
Buy Now Datasheet
Compare Parts:
LT1521CS8 Linear Technology Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8
Rohs Code No
Part Life Cycle Code Transferred
Part Package Code SOIC
Package Description 0.150 Inch, Plastic, So-8
Pin Count 8
Manufacturer Package Code S8
Reach Compliance Code Not Compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Adjustability Adjustable
Dropout Voltage1-Max 0.75 V
Dropout Voltage1-Nom 0.5 V
JESD-30 Code R-PDSO-G8
JESD-609 Code e0
Length 4.9 Mm
Line Regulation-Max (%/V) 0.034
Load Regulation-Max(%) 1.5%
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 1
Number of Terminals 8
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min
Output Current1-Max 0.3 A
Output Voltage1-Max 20 V
Output Voltage1-Min 3.8 V
Package Body Material Plastic/Epoxy
Package Code SOP
Package Equivalence Code SOP8,.25
Package Shape Rectangular
Package Style Small Outline
Peak Reflow Temperature (Cel) 235
Qualification Status Not Qualified
Regulator Type Adjustable Positive Single Output Ldo Regulator
Seated Height-Max 1.752 Mm
Surface Mount Yes
Technology Bipolar
Terminal Finish Tin/Lead (Sn/Pb)
Terminal Form Gull Wing
Terminal Pitch 1.27 Mm
Terminal Position Dual
Time@Peak Reflow Temperature-Max (s) 20
Width 3.9 Mm

Alternate Parts for LT1521CS8

This table gives cross-reference parts and alternative options found for LT1521CS8. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LT1521CS8, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
LT1521CS8#PBF Analog Devices Inc $3.9524 Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8 LT1521CS8 vs LT1521CS8#PBF
LT1521IS8#PBF Analog Devices Inc $4.2877 Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8 LT1521CS8 vs LT1521IS8#PBF
LT1521CS8#TR Analog Devices Inc Check for Price Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, PDSO8 LT1521CS8 vs LT1521CS8#TR
LT1521CS8#TRPBF Linear Technology Check for Price Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8 LT1521CS8 vs LT1521CS8#TRPBF
AS1521S Sipex Corporation Check for Price Adjustable Positive LDO Regulator, 1.24V Min, 20V Max, 0.7V Dropout, BIPolar, PDSO8 LT1521CS8 vs AS1521S
LT1521IS8#TR Analog Devices Inc Check for Price Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8 LT1521CS8 vs LT1521IS8#TR
LT1521IS8#TRPBF Analog Devices Inc Check for Price Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8 LT1521CS8 vs LT1521IS8#TRPBF
LT1521IS8#PBF Linear Technology Check for Price Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8 LT1521CS8 vs LT1521IS8#PBF
LT1521IS8#TR Linear Technology Check for Price Adjustable Positive LDO Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8 LT1521CS8 vs LT1521IS8#TR
equivalents icon

LT1521CS8 Related Parts

LT1521CS8 Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the LT1521CS8 is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent damage to the internal circuitry.

  • To ensure stability, make sure to follow the recommended layout and component placement guidelines, use a low-ESR output capacitor, and add a small ceramic capacitor (e.g., 10nF) between the Vout pin and GND to filter out high-frequency noise.

  • The LT1521CS8 can deliver a minimum output current of 1mA, but it's recommended to keep the output current above 5mA to ensure accurate regulation and to prevent the output voltage from drooping.

  • The LT1521CS8 is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. It's recommended to derate the output current and voltage according to the temperature derating curve in the datasheet.

  • The output voltage ripple of the LT1521CS8 can be calculated using the formula: ΔVout = (Iout * Rout) / (fsw * Cout), where Iout is the output current, Rout is the output resistance, fsw is the switching frequency, and Cout is the output capacitance.

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