LP2953IM/NOPB Equivalent & Substitute Parts

Part Overview

The LP2953IM/NOPB is a linear voltage regulator IC from Texas Instruments designed for positive adjustable (fixed) output applications. This Surface Mount device delivers 250mA output current in a 16-SOIC package and is classified as Active product status. The device is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). Finding equivalent and substitute parts is necessary for supply chain continuity, design flexibility, and procurement optimization when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

LP2953IM/NOPB

Texas InstrumentsIn Stock: 1025LP2953IM/NOPB Datasheet

Current PartRFQ

LP2952IM/NOPB

National SemiconductorIn Stock: 2234LP2952IM/NOPB Datasheet

Parametric EquivalentRFQ

LP2953AIM/NOPB

Texas InstrumentsIn Stock: 1349LP2953AIM/NOPB Datasheet

Parametric EquivalentRFQ

LP2953IM

National SemiconductorIn Stock: 2279LP2953IM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2953IM/NOPB are identified based on strict parametric equivalence. The following electrical and mechanical parameters must match for direct substitution:

• Output Configuration: Positive
• Output Type: Adjustable (Fixed)
• Number of Regulators: 1
• Voltage - Input (Max): 30V
• Voltage - Output (Min/Fixed): 1.23V (5V)
• Voltage - Output (Max): 29V
• Voltage Dropout (Max): 0.8V @ 250mA
• Current - Output: 250mA
• Current - Quiescent (Iq): 170 µA
• Current - Supply (Max): 33 mA
• Control Features: Enable
• Protection Features: Over Current, Over Temperature, Reverse Polarity
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount

All identified substitute parts meet these criteria and are classified as Active products.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are parametrically equivalent to the LP2953IM/NOPB and share identical electrical and mechanical specifications. Selection among these parts should be based on compliance requirements and product status:

LP2953AIM/NOPB is the preferred substitute when ROHS3 compliance and REACH Unaffected status are required, as it maintains full compliance alignment with the main part.

LP2952IM/NOPB from National Semiconductor is a parametric equivalent with Active product status. Compliance certifications are not specified for this part.

LP2953IM from National Semiconductor is a parametric equivalent with Active product status but carries RoHS non-compliant status and REACH Affected designation. This part is suitable only for applications where RoHS3 compliance is not mandated.

All substitute parts are Surface Mount devices in 16-SOIC packaging and are suitable for direct PCB layout compatibility with the LP2953IM/NOPB.

Frequently Asked Questions (FAQ)

Q: Can LP2952IM/NOPB be used as a direct replacement for LP2953IM/NOPB?

A: Yes. LP2952IM/NOPB is a parametric equivalent with identical electrical specifications, output current rating (250mA), voltage ranges, dropout characteristics, and 16-SOIC package. Both devices are Active products and suitable for direct substitution in circuit designs.

Q: What is the difference between LP2953IM/NOPB and LP2953AIM/NOPB?

A: Both parts are from Texas Instruments with identical electrical and mechanical parameters. The primary difference is compliance certification: LP2953AIM/NOPB is ROHS3 compliant and REACH Unaffected, while LP2953IM/NOPB carries the same certifications. Both are suitable for direct substitution.

Q: Is LP2953IM from National Semiconductor compatible with LP2953IM/NOPB?

A: LP2953IM is parametrically equivalent with identical electrical specifications and 16-SOIC packaging. However, it is RoHS non-compliant and REACH Affected. Use this part only in applications where RoHS3 compliance is not required.

Q: Are all substitute parts in the same package?

A: Yes. All substitute parts use the 16-SOIC (0.154", 3.90mm Width) Surface Mount package, ensuring PCB layout and footprint compatibility with the LP2953IM/NOPB.

Q: What protection features are included in these regulators?

A: All listed parts include Over Current, Over Temperature, and Reverse Polarity protection features with Enable control capability.

Q: What is the operating temperature range for these parts?

A: All substitute parts operate across the temperature range of -40°C to 125°C, matching the LP2953IM/NOPB specification.