LP5912-1.8DRVT Equivalent & Substitute Parts

Part Overview

The LP5912-1.8DRVT is a linear voltage regulator IC from Texas Instruments designed for positive fixed 1.8V output applications with 500mA current capacity in a 6-WSON (2x2) surface mount package. This device integrates enable, power good, and soft start control features with comprehensive protection including over temperature, reverse polarity, and short circuit safeguards. The part is currently in Last Time Buy status, making identification of equivalent and substitute parts essential for design continuity and procurement planning.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	1.8V
Output Current	500mA
Input Voltage (Max)	6.5V
Dropout Voltage (Max)	0.25V @ 500mA
Quiescent Current	55 µA
PSRR	80dB ~ 40dB (100Hz ~ 100kHz)
Control Features	Enable, Power Good, Soft Start
Protection Features	Over Temperature, Reverse Polarity, Short Circuit
Operating Temperature Range	-40°C ~ 125°C (TJ)
Package	6-WSON (2x2)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the LP5912-1.8DRVT is determined by electrical and mechanical parameter equivalence across the LP5912 series. All identified substitute parts maintain identical output voltage (1.8V), output current (500mA), input voltage rating (6.5V maximum), dropout voltage specification (0.25V @ 500mA), quiescent current (55 µA), PSRR characteristics, control features, protection features, operating temperature range, and package configuration (6-WSON 2x2). Substitutes are grouped based on product status and automotive qualification level. The key parameters enabling substitution are: fixed 1.8V output, 500mA current capacity, 6-WSON package, and identical control and protection feature sets.

Parameter Comparison

Parameter	LP5912-1.8DRVT	LP5912-1.8DRVR	LP5912Q1.8DRVRQ1	LP5912Q1.8DRVTQ1
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Output Voltage	1.8V	1.8V	1.8V	1.8V
Output Current	500mA	500mA	500mA	500mA
Input Voltage (Max)	6.5V	6.5V	6.5V	6.5V
Dropout Voltage (Max)	0.25V @ 500mA	0.25V @ 500mA	0.25V @ 500mA	0.25V @ 500mA
Quiescent Current	55 µA	55 µA	55 µA	55 µA
PSRR	80dB ~ 40dB (100Hz ~ 100kHz)	80dB ~ 40dB (100Hz ~ 100kHz)	80dB ~ 40dB (100Hz ~ 100kHz)	80dB ~ 40dB (100Hz ~ 100kHz)
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
Operating Temperature	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)
Package	6-WSON (2x2)	6-WSON (2x2)	6-WSON (2x2)	6-WSON (2x2)
Product Status	Last Time Buy	Active	Active	Last Time Buy
Automotive Grade	Standard	Standard	AEC-Q100	AEC-Q100
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For applications currently using LP5912-1.8DRVT, LP5912-1.8DRVR is the primary substitute due to its Active product status and identical electrical and mechanical specifications. This part provides continuity without design modification and maintains full ROHS3 compliance.

For automotive applications requiring AEC-Q100 qualification, LP5912Q1.8DRVRQ1 is the appropriate selection. This part carries Active status and meets automotive-grade requirements while maintaining all electrical parameters and package specifications of the original design.

LP5912Q1.8DRVTQ1 is an automotive-qualified alternative with AEC-Q100 certification and identical electrical specifications. However, this part shares Last Time Buy status with the original LP5912-1.8DRVT, limiting its suitability for long-term procurement strategies.

All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can LP5912-1.8DRVR be used as a direct replacement for LP5912-1.8DRVT?

A: Yes. Both parts share identical electrical specifications including 1.8V fixed output, 500mA current capacity, 0.25V dropout voltage, 55 µA quiescent current, and identical control and protection features. The 6-WSON (2x2) package is identical. The primary difference is product status: LP5912-1.8DRVR is Active while LP5912-1.8DRVT is Last Time Buy.

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

A: The LP5912Q1.8DRVRQ1 and LP5912Q1.8DRVTQ1 variants include AEC-Q100 automotive qualification and are designated for automotive applications. All electrical and mechanical parameters remain identical to standard versions. Selection depends on application requirements and automotive compliance mandates.

Q: Are all substitute parts pin-compatible?

A: Yes. All parts use the 6-WSON (2x2) package with identical pinout and exposed pad configuration, enabling direct PCB-level substitution without layout modification.

Q: Which substitute should be selected for new designs?

A: LP5912-1.8DRVR is recommended for standard applications due to Active product status. For automotive applications, LP5912Q1.8DRVRQ1 provides AEC-Q100 qualification with Active status.

Q: Do all parts meet the same compliance standards?

A: Yes. All parts are ROHS3 compliant, MSL Level 1 (Unlimited), and REACH Unaffected. Regulatory compliance is maintained across all substitutes.

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