LP38692SD-5.0 Linear Voltage Regulator IC Equivalent & Substitute Parts

Part Overview

The LP38692SD-5.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output applications with 1A current capacity in a 6-WSON (3x3) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The LP38692 series provides regulated 5V output with integrated over-temperature protection suitable for low-power embedded systems and industrial applications requiring stable voltage regulation.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Voltage (Fixed)	5V
Output Current	1A
Input Voltage (Max)	10V
Voltage Dropout (Max)	0.8V @ 1A
Quiescent Current	55 µA
PSRR	55dB (120Hz)
Operating Temperature Range	-40°C to 125°C
Package Type	6-WDFN Exposed Pad / 6-WSON (3x3)
Mounting Type	Surface Mount
Protection Features	Over Temperature

Substitute Part Grouping Explanation

Substitution for the LP38692SD-5.0 is based on strict electrical and mechanical parameter matching across the LP38692 and LP38690 series. All substitute parts maintain identical specifications for output voltage (5V fixed), output current (1A), input voltage maximum (10V), voltage dropout (0.8V @ 1A), quiescent current (55 µA), PSRR (55dB at 120Hz), operating temperature range (-40°C to 125°C), and package configuration (6-WSON 3x3). The key differentiators among substitute parts are product status (active vs. obsolete), RoHS compliance level, and packaging format (Tape & Reel vs. Cut Tape). All parts share the same functional performance characteristics and pinout compatibility.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	PSRR	Operating Temp	Package	Product Status	RoHS Status
LP38692SD-5.0	Texas Instruments	5V	1A	10V	0.8V @ 1A	55 µA	55dB (120Hz)	-40°C to 125°C	6-WSON (3x3)	Obsolete	Non-compliant
LP38690SD-5.0/NOPB	Texas Instruments	5V	1A	10V	0.8V @ 1A	55 µA	55dB (120Hz)	-40°C to 125°C	6-WSON (3x3)	Active	ROHS3 Compliant
LP38690SDX-5.0/NOPB	Texas Instruments	5V	1A	10V	0.8V @ 1A	55 µA	55dB (120Hz)	-40°C to 125°C	6-WSON (3x3)	Active	ROHS3 Compliant
LP38692SD-5.0/NOPB	Texas Instruments	5V	1A	10V	0.8V @ 1A	55 µA	55dB (120Hz)	-40°C to 125°C	6-WSON (3x3)	Active	ROHS3 Compliant
LP38692SDX-5.0/NOPB	Texas Instruments	5V	1A	10V	0.8V @ 1A	55 µA	55dB (120Hz)	-40°C to 125°C	6-WSON (3x3)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For new designs and procurement, LP38692SD-5.0/NOPB is the primary recommended substitute. This part maintains identical electrical performance to the obsolete LP38692SD-5.0 while offering active product status and ROHS3 compliance. The /NOPB suffix indicates lead-free manufacturing, meeting modern environmental and regulatory requirements.

LP38690SD-5.0/NOPB and LP38690SDX-5.0/NOPB provide functionally equivalent alternatives from the LP38690 series with active status and ROHS3 compliance. These parts are suitable for applications where the LP38692 variant is unavailable.

LP38692SDX-5.0/NOPB offers the same electrical specifications with active product status and ROHS3 compliance, providing an additional sourcing option within the LP38692 family.

All substitute parts are pin-compatible and electrically interchangeable with the original LP38692SD-5.0, requiring no circuit modifications for direct replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: Can LP38690SD-5.0/NOPB directly replace LP38692SD-5.0 in existing designs?

A: Yes. Both parts share identical electrical specifications including 5V fixed output, 1A output current, 0.8V maximum dropout voltage, 55 µA quiescent current, and 55dB PSRR. The 6-WSON (3x3) package pinout is compatible, allowing direct substitution without circuit modifications.

Q: What is the difference between LP38692 and LP38690 series parts?

A: The LP38692 and LP38690 series are functionally equivalent linear voltage regulators with identical electrical performance parameters. Both deliver 5V fixed output at 1A with matching dropout voltage, quiescent current, and PSRR specifications. Selection between series is based on product availability and compliance status rather than performance differences.

Q: Why is the original LP38692SD-5.0 marked as obsolete?

A: The LP38692SD-5.0 is classified as obsolete due to its RoHS non-compliant status. Modern manufacturing and regulatory requirements favor ROHS3-compliant alternatives such as LP38692SD-5.0/NOPB, LP38690SD-5.0/NOPB, and LP38690SDX-5.0/NOPB, which offer equivalent performance with current compliance certifications.

Q: What does the /NOPB suffix indicate?

A: The /NOPB suffix denotes lead-free (Pb-free) manufacturing and packaging, indicating compliance with RoHS directives and modern environmental standards. This is standard for active production parts from Texas Instruments.

Q: Are there packaging differences between substitute parts?

A: Substitute parts are available in Tape & Reel (TR) and Cut Tape (CT) packaging formats. All maintain the same 6-WSON (3x3) component package. Packaging selection depends on procurement volume and assembly line requirements rather than electrical performance.

Q: What is the moisture sensitivity level for these parts?

A: All parts in this group carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message