LP5912-3.3DRVT Equivalent & Substitute Parts

Part Overview

The LP5912-3.3DRVT is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.3V output applications. This Surface Mount device delivers 500mA output current in a compact 6-WSON (2x2) package with integrated protection features including over-temperature, reverse polarity, and short-circuit protection. The part is currently in Active product status with 23,870 units in stock. Substitute parts are identified when identical electrical and mechanical parameters are maintained across different packaging configurations, automotive qualifications, or product lifecycle stages.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	3.3V
Output Current	500mA
Input Voltage (Max)	6.5V
Voltage Dropout (Max)	0.18V @ 500mA
Quiescent Current	55 µA
Operating Temperature Range	-40°C ~ 125°C (TJ)
Package Type	6-WDFN Exposed Pad
Control Features	Enable, Power Good, Soft Start
Protection Features	Over Temperature, Reverse Polarity, Short Circuit
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LP5912-3.3DRVT is determined by matching the following critical parameters: output voltage (3.3V fixed), output current capability (500mA), input voltage maximum (6.5V), voltage dropout specification (0.18V @ 500mA), quiescent current (55 µA), operating temperature range (-40°C ~ 125°C), package type (6-WDFN Exposed Pad), control features (Enable, Power Good, Soft Start), and protection features (Over Temperature, Reverse Polarity, Short Circuit). Substitute parts may differ in packaging format (Cut Tape vs. Tape & Reel), automotive qualification status, or product lifecycle stage while maintaining identical electrical performance and mechanical compatibility.

Parameter Comparison

Parameter	LP5912-3.3DRVT	LP5912-3.3DRVR	LP5912Q3.3DRVRQ1	LP5912Q3.3DRVTQ1
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Output Voltage	3.3V	3.3V	3.3V	3.3V
Output Current	500mA	500mA	500mA	500mA
Input Voltage (Max)	6.5V	6.5V	6.5V	6.5V
Voltage Dropout (Max)	0.18V @ 500mA	0.18V @ 500mA	0.18V @ 500mA	0.18V @ 500mA
Quiescent Current	55 µA	55 µA	55 µA	55 µA
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package Type	6-WDFN Exposed Pad	6-WDFN Exposed Pad	6-WDFN Exposed Pad	6-WDFN Exposed Pad
Control Features	Enable, Power Good, Soft Start	Enable, Power Good, Soft Start	Enable, Power Good, Soft Start	Enable, Power Good, Soft Start
Protection Features	Over Temperature, Reverse Polarity, Short Circuit	Over Temperature, Reverse Polarity, Short Circuit	Over Temperature, Reverse Polarity, Short Circuit	Over Temperature, Reverse Polarity, Short Circuit
Packaging Format	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Product Status	Active	Active	Active	Last Time Buy
Automotive Grade	Standard	Standard	AEC-Q100	AEC-Q100
Inventory (Pcs)	23,870	40,821	17,100	2,150
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

LP5912-3.3DRVR is the primary parametric equivalent with identical electrical specifications and standard industrial grade qualification. This part is available in higher inventory (40,821 units) and maintains Active product status, making it suitable for general industrial applications requiring 3.3V regulation at 500mA.

LP5912Q3.3DRVRQ1 is the automotive-qualified equivalent with AEC-Q100 certification. This variant is specified for automotive applications where functional safety and quality assurance standards are mandatory. The part maintains identical electrical performance while meeting automotive industry qualification requirements.

LP5912Q3.3DRVTQ1 is an automotive-qualified variant with AEC-Q100 certification supplied in Tape & Reel format. This part is designated Last Time Buy status with limited inventory (2,150 units), indicating end-of-life phase. Selection of this part should be avoided for new designs unless existing supply chain commitments require it.

Frequently Asked Questions (FAQ)

Q: Can LP5912-3.3DRVR be used as a direct replacement for LP5912-3.3DRVT?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, output voltage (3.3V), output current (500mA), voltage dropout (0.18V @ 500mA), and package type (6-WDFN Exposed Pad). The difference is packaging format: LP5912-3.3DRVT is supplied in Cut Tape & Digi-Reel format, while LP5912-3.3DRVR is also available in Cut Tape & Digi-Reel format. Both are suitable for direct PCB substitution.

Q: What is the difference between standard and automotive-qualified versions?

A: The LP5912Q3.3DRVRQ1 and LP5912Q3.3DRVTQ1 variants include AEC-Q100 automotive qualification, indicating compliance with automotive industry reliability and quality standards. These parts are required for automotive applications. Standard versions (LP5912-3.3DRVT and LP5912-3.3DRVR) lack this certification and are suitable for industrial and consumer applications.

Q: Why is LP5912Q3.3DRVTQ1 marked as Last Time Buy?

A: Last Time Buy status indicates the part is in end-of-life phase. Texas Instruments has announced discontinuation, and current inventory (2,150 units) represents the final available stock. New designs should specify LP5912Q3.3DRVRQ1 (automotive-qualified) or LP5912-3.3DRVR (standard industrial) instead.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, ensuring environmental and regulatory compatibility across all variants.

Q: Can packaging format be changed between Cut Tape and Tape & Reel?

A: Yes. Packaging format differences (Cut Tape & Digi-Reel vs. Tape & Reel) do not affect electrical performance or PCB compatibility. Selection depends on assembly process requirements and inventory management preferences. The physical component and electrical characteristics remain identical.

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