LM5030SD Equivalent & Substitute Parts

Part Overview

The LM5030SD is a DC-DC controller IC from Texas Instruments designed for multi-topology power management applications. It functions as a transistor driver for step-up/step-down conversion with support for full-bridge, half-bridge, and push-pull topologies. The device operates across a wide supply voltage range of 14V to 90V and includes integrated frequency control and soft start features.

The LM5030SD is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems utilizing this controller.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Type	Transistor Driver
Function	Step-Up/Step-Down
Output Configuration	Positive, Isolation Capable
Topology	Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs	2
Output Phases	1
Voltage - Supply (Vcc/Vdd)	14V ~ 90V
Frequency - Switching	200kHz, 600kHz
Duty Cycle (Max)	50%
Synchronous Rectifier	No
Clock Sync	No
Control Features	Frequency Control, Soft Start
Operating Temperature	-40°C ~ 105°C (TA)
Mounting Type	Surface Mount
Package / Case	10-WDFN Exposed Pad
Supplier Device Package	10-WSON (4x4)
Base Product Number	LM5030
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the LM5030SD is determined by strict equivalence across the following critical parameters:

Output type and function (transistor driver for step-up/step-down conversion)
Supported topologies (full-bridge, half-bridge, push-pull)
Output configuration (positive, isolation capable)
Number of outputs and output phases (2 outputs, 1 phase)
Supply voltage range (14V ~ 90V)
Switching frequency options (200kHz, 600kHz)
Maximum duty cycle (50%)
Control features (frequency control, soft start)
Operating temperature range (-40°C ~ 105°C)
Package type (10-WDFN exposed pad / 10-WSON 4x4)
Moisture sensitivity level (MSL 1)

The LM5030SD/NOPB is identified as a parametric equivalent based on complete alignment with all electrical and mechanical specifications. The primary distinction is product status and packaging configuration.

Parameter Comparison

Parameter	LM5030SD	LM5030SD/NOPB
Manufacturer	Texas Instruments	Texas Instruments
Category	Power Management (PMIC)	Power Management (PMIC)
Output Type	Transistor Driver	Transistor Driver
Function	Step-Up/Step-Down	Step-Up/Step-Down
Output Configuration	Positive, Isolation Capable	Positive, Isolation Capable
Topology	Full-Bridge, Half-Bridge, Push-Pull	Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs	2	2
Output Phases	1	1
Voltage - Supply (Vcc/Vdd)	14V ~ 90V	14V ~ 90V
Frequency - Switching	200kHz, 600kHz	200kHz, 600kHz
Duty Cycle (Max)	50%	50%
Synchronous Rectifier	No	No
Clock Sync	No	No
Control Features	Frequency Control, Soft Start	Frequency Control, Soft Start
Operating Temperature	-40°C ~ 105°C (TA)	-40°C ~ 105°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	10-WDFN Exposed Pad	10-WDFN Exposed Pad
Supplier Device Package	10-WSON (4x4)	10-WSON (4x4)
Base Product Number	LM5030	LM5030
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active
Packaging Configuration	Bulk	Tape & Reel (TR)
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The LM5030SD/NOPB is the direct substitute for the obsolete LM5030SD. Both parts share identical electrical specifications and package geometry, ensuring functional and mechanical compatibility in existing designs.

The LM5030SD/NOPB offers the following advantages:

Active product status ensures ongoing availability and manufacturer support
ROHS3 compliance satisfies environmental and regulatory requirements for new production
Tape & Reel packaging is standard for automated assembly processes
Identical electrical performance across all operating parameters

Selection of the LM5030SD/NOPB is appropriate for all applications currently using the LM5030SD, with no design modifications required.

Frequently Asked Questions (FAQ)

Q: Are the LM5030SD and LM5030SD/NOPB electrically identical?

A: Yes. Both parts are manufactured by Texas Instruments and share identical electrical specifications, including supply voltage range (14V ~ 90V), switching frequency options (200kHz, 600kHz), output configuration, topology support, and control features.

Q: What is the difference between LM5030SD and LM5030SD/NOPB?

A: The primary differences are product status, packaging configuration, and RoHS compliance. The LM5030SD is obsolete and supplied in bulk packaging with RoHS non-compliant status. The LM5030SD/NOPB is active, supplied in Tape & Reel packaging, and ROHS3 compliant.

Q: Can I use LM5030SD/NOPB as a direct replacement in existing designs?

A: Yes. The LM5030SD/NOPB is a direct substitute. No design modifications are required. The package type (10-WSON 4x4) and pin configuration are identical, ensuring drop-in compatibility.

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

A: No. Packaging configuration does not affect electrical performance or functionality. Tape & Reel packaging is a supply format optimized for automated assembly processes and does not alter the component's electrical characteristics.

Q: Is the LM5030SD/NOPB suitable for new designs?

A: Yes. The LM5030SD/NOPB is an active product with full manufacturer support. It is appropriate for both new designs and replacement of obsolete LM5030SD units in existing applications.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the part meets the Restriction of Hazardous Substances Directive 3, restricting the use of specific hazardous materials in electrical and electronic equipment. This is a regulatory requirement for many markets and applications.

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