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Power Circuits / Linear Regulator ICs / LT1521IS8-3#PBF
Datasheets
LT1521IS8-3#PBF by:
Linear Technology
Analog Devices Inc
Linear Technology
Not Found

LT1521 - 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C

Part Details for LT1521IS8-3#PBF by Linear Technology

Results Overview of LT1521IS8-3#PBF by Linear Technology

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Applications Energy and Power Systems Transportation and Logistics Renewable Energy Automotive

LT1521IS8-3#PBF Information

LT1521IS8-3#PBF 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.

Part Details for LT1521IS8-3#PBF

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LT1521IS8-3#PBF Part Data Attributes

Parametric Data
LT1521IS8-3#PBF Linear Technology
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LT1521IS8-3#PBF Linear Technology LT1521 - 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C
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Rohs Code Yes
Part Life Cycle Code Transferred
Ihs Manufacturer LINEAR TECHNOLOGY CORP
Part Package Code SOIC
Package Description 0.150 INCH, PLASTIC, SO-8
Pin Count 8
Manufacturer Package Code S8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Adjustability FIXED
Dropout Voltage1-Max 0.75 V
Dropout Voltage1-Nom 0.5 V
Input Voltage Absolute-Max 20 V
Input Voltage-Max 20 V
Input Voltage-Min 4 V
JESD-30 Code R-PDSO-G8
JESD-609 Code e3
Length 4.9 mm
Line Regulation-Max 0.02%
Load Regulation-Max 0.055%
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 -40 °C
Output Current1-Max 0.3 A
Output Voltage1-Max 3.1 V
Output Voltage1-Min 2.9 V
Output Voltage1-Nom 3 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) 260
Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Seated Height-Max 1.75 mm
Surface Mount YES
Technology BIPOLAR
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Voltage Tolerance-Max 3.3%
Width 3.9 mm

Alternate Parts for LT1521IS8-3#PBF

This table gives cross-reference parts and alternative options found for LT1521IS8-3#PBF. 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 LT1521IS8-3#PBF, 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
LT1521IS8-3 Linear Technology Check for Price LT1521 - 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C LT1521IS8-3#PBF vs LT1521IS8-3
LT1521CS8-3#PBF Analog Devices Inc Check for Price 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown LT1521IS8-3#PBF vs LT1521CS8-3#PBF
Part Number Manufacturer Composite Price Description Compare
LT1521CMS8-5#PBF Linear Technology Check for Price LT1521 - 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown; Package: MSOP; Pins: 8; Temperature Range: 0°C to 70°C LT1521IS8-3#PBF vs LT1521CMS8-5#PBF
LT1587CT-3.3#PBF Linear Technology Check for Price LT1587 - 7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed; Package: TO-220; Pins: 3; Temperature Range: 0°C to 70°C LT1521IS8-3#PBF vs LT1587CT-3.3#PBF
LT1117IST-5#TRPBF Linear Technology Check for Price LT1117 - 800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V,3.3V, 5V; Package: SOT; Pins: 3; Temperature Range: -40°C to 85°C LT1521IS8-3#PBF vs LT1117IST-5#TRPBF
LT1585CT-1.5 Linear Technology Check for Price LT1585-1.5 - Fixed 1.5V, 4.6A and 5A Low Dropout, Fast Response GTL+ Regulators; Package: TO-220; Pins: 3; Temperature Range: 0°C to 70°C LT1521IS8-3#PBF vs LT1585CT-1.5
LT1086CM-3.3#TR Linear Technology Check for Price LT1086 - 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V; Package: DD PAK; Pins: 3; Temperature Range: 0°C to 70°C LT1521IS8-3#PBF vs LT1086CM-3.3#TR
LT1086CM-3.3 Linear Technology Check for Price LT1086 - 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V; Package: DD PAK; Pins: 3; Temperature Range: 0°C to 70°C LT1521IS8-3#PBF vs LT1086CM-3.3
LT1762EMS8-3.3#PBF Linear Technology Check for Price LT1762 - 150mA, Low Noise, LDO Micropower Regulators; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C LT1521IS8-3#PBF vs LT1762EMS8-3.3#PBF
LT1585CT-1.5#PBF Linear Technology Check for Price LT1585-1.5 - Fixed 1.5V, 4.6A and 5A Low Dropout, Fast Response GTL+ Regulators; Package: TO-220; Pins: 3; Temperature Range: 0°C to 70°C LT1521IS8-3#PBF vs LT1585CT-1.5#PBF
LT1086CT-12 Linear Technology Check for Price LT1086 - 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V; Package: TO-220; Pins: 3; Temperature Range: 0°C to 70°C LT1521IS8-3#PBF vs LT1086CT-12
LT1762EMS8-3.3#TRPBF Linear Technology Check for Price LT1762 - 150mA, Low Noise, LDO Micropower Regulators; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C LT1521IS8-3#PBF vs LT1762EMS8-3.3#TRPBF

LT1521IS8-3#PBF Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the LT1521IS8-3#PBF is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent damage to the device.

  • To ensure the stability of the output voltage, make sure to follow the recommended layout and component selection guidelines in the datasheet, and also consider the output capacitor's ESR and ESL values, as well as the input capacitor's value and type.

  • The LT1521IS8-3#PBF is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. It's recommended to derate the output current and voltage according to the temperature derating curves in the datasheet.

  • The output voltage ripple and noise can be calculated using the equations and graphs provided in the datasheet. Additionally, consider the switching frequency, output capacitor value, and input voltage ripple when calculating the output voltage ripple and noise.

  • The recommended PCB layout for the LT1521IS8-3#PBF involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the traces between the device and the capacitors. A 4-layer PCB with a dedicated power plane is also recommended.