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LT1521IS8-3 The LT1521IS8-3 is a low dropout linear voltage regulator from LT, capable of supplying 300mA with a low 0.5V dropout voltage. It features micropower quiescent current and shutdown functionality.
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LT1521IS8-3

Available from 1 distributors
Mfr Name: LT
LT
The LT1521IS8-3 is a low dropout linear voltage regulator from LT, capable of supplying 300mA with a low 0.5V dropout voltage. It features micropower quiescent current and shutdown functionality.
✓ Total Stock: 4,754 pcs

LT1521IS8-3 Available from 1 distributor

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✓ Non-Authorised
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Optech Co.,Limited ✓
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4,754 pcs
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4754 pcs On Request 1 On Request On Request 17+ On Request On Request
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LT1521IS8-3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Industrial Grade
Input Voltage
Lead Spacing
Lead Style
Mounting Type
Output Current
Output Voltage
SVHC Present
Storage Temperature
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LT1521IS8-3 Description

Short technical summary and product information.

The LT1521IS8-3 is a low dropout linear voltage regulator designed for battery-powered systems. It can supply up to 300mA of output current with a typical dropout voltage of 0.5V. The device operates with a low quiescent current of 12mA during normal operation and reduces this to 6mA in shutdown mode, making it ideal for power-sensitive applications.

 

Key features include controlled quiescent current even in dropout, reverse battery protection, and the ability to operate with small output capacitors (stable with 1.5µF). This enhances manufacturability by allowing the use of small ceramic capacitors. The LT1521IS8-3 has a fixed 3.3V output voltage and is available in an 8-lead SOIC package (S8).

 

This regulator is suitable for various applications including low current regulation, battery-powered systems, and as a post-regulator for switching supplies. Its ability to handle negative input voltages without reverse current flow also makes it useful for backup power situations.

LT1521IS8-3 Quick Information

Product Type: Low Dropout Regulator
Series: LT1521
Canonical Name: LT1521IS8-3 Low Dropout Regulator
Subcategory: Low Dropout (LDO)

LT1521IS8-3 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LT1521IS8-3 Features

  • 300mA output current capability.
  • Low 0.5V dropout voltage.
  • Micropower quiescent current.
  • Shutdown mode for power saving.
  • Reverse battery protection included.

LT1521IS8-3 Applications

  • Ideal for battery-powered systems.
  • Suitable for low current regulation.
  • Used as post-regulator for switchers.
  • Useful in backup power situations.

LT1521IS8-3 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LT1521IS8-3?

The LT1521IS8-3 has a fixed output voltage of 3.3V.

What is the maximum output current of the LT1521IS8-3?

The typical output current is 300mA.

What is the dropout voltage of the LT1521IS8-3?

The typical dropout voltage is 0.5V.

What package is the LT1521IS8-3 available in?

The LT1521IS8-3 is available in an 8-Lead Plastic SO (S8) surface mount package.

Does the LT1521IS8-3 include reverse battery protection?

Yes, the LT1521IS8-3 includes reverse battery protection.

What is the quiescent current of the LT1521IS8-3 during operation?

The typical operating quiescent current is 12mA.

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