LM9076S-3.3 Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LM9076S-3.3 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.3V output applications with 150mA current capacity in a TO-263 (DDPAK-5) surface mount package. This device provides regulated power supply functionality with integrated over-temperature protection and reset control features.

The LM9076S-3.3 is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this regulator.

Substiute Parts

LM9076S-3.3

Texas InstrumentsIn Stock: 1041LM9076S-3.3 Datasheet

Current PartRFQ

LM9076S-3.3/NOPB

Texas InstrumentsIn Stock: 1336LM9076S-3.3/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM9076S-3.3 are identified based on strict electrical and mechanical parameter matching within the power management IC category. The substitution criteria are:

• Output voltage configuration: Positive fixed 3.3V
• Output current rating: 150mA minimum
• Input voltage tolerance: 40V maximum
• Voltage dropout specification: 0.25V @ 150mA maximum
• Package compatibility: TO-263 (DDPAK-5) surface mount
• Control and protection features: Reset and over-temperature protection
• Operating temperature range: -40°C ~ 125°C

Parts meeting all these parameters are classified as direct substitutes. Variations in product status, RoHS compliance, or packaging format (tube vs. bulk) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The LM9076S-3.3/NOPB is a direct electrical and mechanical substitute for the LM9076S-3.3. Both parts share identical electrical specifications, output configuration, current ratings, and package format.

The primary distinction is product status and regulatory compliance. The LM9076S-3.3/NOPB maintains active product status with Texas Instruments and carries ROHS3 compliance certification, whereas the original LM9076S-3.3 is obsolete and RoHS non-compliant. For new designs or applications requiring regulatory compliance documentation, the LM9076S-3.3/NOPB is the appropriate selection. For legacy system maintenance where the original part is specified, the LM9076S-3.3/NOPB provides functional equivalence with improved compliance posture.

Frequently Asked Questions (FAQ)

Q: Can LM9076S-3.3/NOPB be used as a direct replacement for LM9076S-3.3?

A: Yes. Both parts are electrically and mechanically identical. They share the same output voltage (3.3V), current rating (150mA), voltage dropout (0.25V @ 150mA), operating temperature range (-40°C ~ 125°C), and TO-263 (DDPAK-5) package format. The /NOPB variant is the active production equivalent.

Q: What does the /NOPB designation indicate?

A: The /NOPB suffix indicates "No Lead (Pb)" and signifies RoHS3 compliance. This designation reflects the removal of lead from the solder plating and confirms adherence to RoHS directives.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the TO-263 (DDPAK-5) surface mount package with identical pinout and mechanical dimensions. PCB layout and footprint compatibility are maintained.

Q: Why is the original LM9076S-3.3 marked as obsolete?

A: Product obsolescence reflects Texas Instruments' transition to active production of the RoHS3-compliant LM9076S-3.3/NOPB variant. The electrical functionality remains unchanged; the obsolescence status indicates manufacturing discontinuation of the non-compliant version.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The LM9076S-3.3/NOPB provides complete functional equivalence for applications currently using the LM9076S-3.3. No circuit modifications, PCB redesign, or firmware changes are required for substitution.