LM1117MPX-33NOPB The On Semiconductor LM1117MPX-33NOPB is a fixed 3.3V linear voltage regulator capable of supplying up to 800mA. It is housed in a space-saving SOT-223 package.
Mfr Part #:

LM1117MPX-33NOPB

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor LM1117MPX-33NOPB is a fixed 3.3V linear voltage regulator capable of supplying up to 800mA. It is housed in a space-saving SOT-223 package.
✓ Total Stock: 35,100 pcs
$ Price Range: $0.40

LM1117MPX-33NOPB Available from 3 distributors

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✓ Non-Authorised
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20,000 pcs
20000 pcs On Request 1 On Request On Request On Request On Request On Request
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15,000 pcs
15000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
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100 pcs
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LM1117MPX-33NOPB Specifications Quick View

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

LM1117MPX-33NOPB Description

Short technical summary and product information.

The LM1117MPX-33NOPB from On Semiconductor is a high-performance linear voltage regulator designed for applications requiring a stable 3.3V output. It can deliver a continuous output current of up to 800mA, making it suitable for a wide range of power management needs.

 

Key electrical characteristics include a low dropout voltage of 1.2V at 800mA, ensuring efficient operation even under demanding load conditions. The regulator also features built-in over-current and over-temperature protection mechanisms to safeguard the device and the connected circuitry. Its line regulation is a maximum of 0.2%, and load regulation is a maximum of 0.4%, ensuring stable output voltage.

 

This device operates within an ambient temperature range of 0°C to 125°C. It is supplied in a compact SOT-223 surface-mount package, which is ideal for designs where space is a constraint. The SOT-223 package offers good thermal performance for its size.

 

Typical applications for the LM1117MPX-33NOPB include post-regulation for switching DC-DC converters, high-efficiency linear regulators, battery chargers, and portable instrumentation. Its fixed output voltage and robust protection features make it a reliable choice for various electronic designs.

LM1117MPX-33NOPB Quick Information

Product Type: Linear Voltage Regulator
Series: LM1117
Canonical Name: LM1117MPX-33NOPB Linear Voltage Regulator, 3.3V Output, 800mA
Subcategory: Linear

LM1117MPX-33NOPB Compliance

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

LM1117MPX-33NOPB Estimated Pricing

Qty Low High
1+ $0.40 $0.40

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

LM1117MPX-33NOPB Features

  • Fixed 3.3V positive linear regulator.
  • 800mA maximum output current.
  • Low 1.2V dropout voltage at 800mA.
  • Over-current and over-temperature protection.
  • Compact SOT-223 surface-mount package.

LM1117MPX-33NOPB Applications

  • Post regulator for switching converters.
  • High efficiency linear regulators.
  • Battery chargers and portable devices.
  • Active SCSI termination regulation.

LM1117MPX-33NOPB FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LM1117MPX-33NOPB?

The output voltage is fixed at 3.3V.

What is the maximum output current?

The maximum output current is 800mA.

What is the dropout voltage?

The typical dropout voltage is 1.2V at 800mA output current.

What is the operating temperature range?

The operating ambient temperature range is -40°C to +125°C.

What package is the LM1117MPX-33NOPB available in?

It is available in a surface-mount SOT-223 package (also referenced as TO-261-4, TO-261AA).

What protection features does this regulator include?

It includes over-current and over-temperature protection.

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