LM2832YMY Buck Switching Regulator IC Equivalent & Substitute Parts

Part Overview

The LM2832YMY is a buck switching regulator IC manufactured by Texas Instruments, designed for positive adjustable output applications. This device functions as a step-down converter with a single adjustable output delivering up to 2A of current. The main part number LM2832YMY is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement. The substitute part LM2832YMY/NOPB maintains identical electrical and mechanical specifications while offering active product status and improved compliance certifications.

Key Parameters

Parameter	Value
Function	Step-Down (Buck)
Output Configuration	Positive
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	3V
Voltage - Input (Max)	5.5V
Voltage - Output (Min/Fixed)	0.6V
Voltage - Output (Max)	4.5V
Current - Output	2A
Frequency - Switching	550kHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

The LM2832YMY/NOPB qualifies as a direct substitute based on the following criteria:

All electrical parameters are identical: input voltage range (3V to 5.5V), adjustable output voltage range (0.6V to 4.5V), output current (2A), switching frequency (550kHz), and operating temperature range (-40°C to 125°C).

The mechanical specifications are identical: both parts use the 8-TSSOP, 8-MSOP package with 0.118" width and exposed pad configuration, and both are surface mount devices.

The primary distinction is packaging format and product status. The LM2832YMY/NOPB is supplied in Tape & Reel (TR) format with active product status, whereas the main part number LM2832YMY has obsolete status. The /NOPB suffix indicates lead-free (Pb-free) termination and RoHS3 compliance.

Parameter Comparison

Parameter	LM2832YMY	LM2832YMY/NOPB
Manufacturer	Texas Instruments	Texas Instruments
Category	Power Management (PMIC)	Power Management (PMIC)
Function	Step-Down	Step-Down
Output Configuration	Positive	Positive
Output Type	Adjustable	Adjustable
Number of Outputs	1	1
Voltage - Input (Min)	3V	3V
Voltage - Input (Max)	5.5V	5.5V
Voltage - Output (Min/Fixed)	0.6V	0.6V
Voltage - Output (Max)	4.5V	4.5V
Current - Output	2A	2A
Frequency - Switching	550kHz	550kHz
Synchronous Rectifier	No	No
Operating Temperature	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
Packaging Format	Bulk	Tape & Reel (TR)
RoHS Status	RoHS non-compliant	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8542.39.0001	8542.39.0001

Engineering Selection Recommendations

The LM2832YMY/NOPB is the direct substitute for the obsolete LM2832YMY. Both parts share identical electrical performance and mechanical specifications, ensuring functional equivalence in circuit applications.

The LM2832YMY/NOPB offers two significant advantages: active product status ensures continued availability and manufacturing support from Texas Instruments, and RoHS3 compliance satisfies modern regulatory requirements for electronic components in many markets and applications.

The packaging format difference (Tape & Reel versus bulk) affects procurement and assembly processes but does not impact electrical or mechanical compatibility. Selection between these formats depends on production volume and assembly line requirements.

Frequently Asked Questions (FAQ)

Q: Can LM2832YMY/NOPB be used as a direct replacement for LM2832YMY?

A: Yes. Both parts are electrically and mechanically identical. The LM2832YMY/NOPB maintains the same input voltage range (3V to 5.5V), adjustable output voltage range (0.6V to 4.5V), output current (2A), switching frequency (550kHz), and operating temperature range (-40°C to 125°C). The package type, pin configuration, and exposed pad design are identical.

Q: What is the difference between LM2832YMY and LM2832YMY/NOPB?

A: The primary differences are product status, RoHS compliance, and packaging format. LM2832YMY is obsolete with RoHS non-compliant status, while LM2832YMY/NOPB is active with RoHS3 compliance. LM2832YMY/NOPB is supplied in Tape & Reel format, whereas LM2832YMY is supplied in bulk format. The /NOPB suffix indicates lead-free termination.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts deliver identical electrical performance across all specified parameters: switching frequency, output current capability, voltage regulation range, and operating temperature specifications are the same.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Tape & Reel packaging is a procurement and assembly format only. It does not affect the electrical or mechanical characteristics of the component itself. The actual device remains identical.

Q: Is the 8-TSSOP package compatible with existing PCB designs?

A: Yes. Both parts use the same 8-TSSOP, 8-MSOP package with 0.118" width and exposed pad. PCB footprints, land patterns, and assembly processes remain unchanged.

Q: What does the /NOPB designation mean?

A: The /NOPB suffix indicates lead-free (Pb-free) termination and RoHS3 compliance. This means the component meets modern environmental and regulatory standards for hazardous substance restrictions.

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