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LT1121IST-5#TRPBF The LT1121IST-5#TRPBF is a micropower low dropout linear voltage regulator from Analog Devices. It provides a 5V fixed output and can supply up to 150mA of current.
Mfr Part #:

LT1121IST-5#TRPBF

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The LT1121IST-5#TRPBF is a micropower low dropout linear voltage regulator from Analog Devices. It provides a 5V fixed output and can supply up to 150mA of current.
✓ Total Stock: 32 pcs
$ Price Range: $0.28

LT1121IST-5#TRPBF Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Speed Components Ltd ✓
Non-Authorised Inventory information
32 pcs
On Request
32 pcs On Request 1 On Request On Request 2315 On Request On Request
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LT1121IST-5#TRPBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Current
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Type
Output Voltage
PSRR
Protection Features
Supplier Device Package
Voltage
Voltage Dropout (Max)
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LT1121IST-5#TRPBF Description

Short technical summary and product information.

The LT1121IST-5#TRPBF is a micropower low dropout regulator with shutdown capability, designed for battery-powered systems. It features a low quiescent current of 30µA in operation and 16µA in shutdown, making it ideal for power-sensitive applications.

 

This regulator offers a 0.4V dropout voltage and can supply up to 150mA of output current. It is stable with a small 0.33µF output capacitor, enhancing manufacturability. The device also includes reverse battery protection and no reverse current flow when the input is low.

 

Available in a SOT-223-3 surface mount package, the LT1121IST-5#TRPBF is suitable for various low-power applications including low current regulation, battery-powered systems, and as a post regulator for switching supplies.

LT1121IST-5#TRPBF Quick Information

Product Type: Linear Voltage Regulator
Canonical Name: LT1121IST-5 Linear Micropower Low Dropout Regulator with Shutdown, 5V Output
Subcategory: Linear

LT1121IST-5#TRPBF Compliance

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

LT1121IST-5#TRPBF Estimated Pricing

Qty Low High
1+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

LT1121IST-5#TRPBF Features

  • Micropower low dropout regulator with shutdown.
  • 150mA output current capability.
  • Low 0.4V dropout voltage.
  • Stable with 0.33µF output capacitor.
  • Reverse battery protection included.

LT1121IST-5#TRPBF Applications

  • Ideal for battery-powered systems.
  • Suitable for low current regulation.
  • Used as post regulator for switching supplies.
  • Designed for portable electronic devices.

LT1121IST-5#TRPBF FAQs

5 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LT1121IST-5#TRPBF?

The LT1121IST-5#TRPBF has a fixed 5V output voltage.

What is the maximum output current for the LT1121IST-5#TRPBF?

The LT1121IST-5#TRPBF can supply a maximum output current of 150mA.

What is the dropout voltage of the LT1121IST-5#TRPBF?

The dropout voltage for the LT1121IST-5#TRPBF is typically 0.4V, and a maximum of 0.7V at 150mA.

What is the operating temperature range for this regulator?

The LT1121IST-5#TRPBF operates within a temperature range of -40°C to 125°C.

What package is the LT1121IST-5#TRPBF supplied in?

This device is available in SOT-223-3 and TO-261-4, TO-261AA packages.

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