LM5035AMH/NOPB Equivalent & Substitute Parts

Part Overview

The LM5035AMH/NOPB is a half-bridge regulator controller IC manufactured by Texas Instruments, designed for positive, isolation-capable step-up/step-down DC-DC conversion applications. This device operates as a transistor driver with integrated frequency control, ramp, and soft start features across a wide supply voltage range of 13V to 105V.

The LM5035AMH/NOPB is classified as obsolete, which necessitates identification of equivalent substitute components for ongoing design support and production continuity. Substitute parts maintain identical electrical and mechanical specifications while offering improved product status or availability.

Substiute Parts

LM5035AMH/NOPB

Texas InstrumentsIn Stock: 1146LM5035AMH/NOPB Datasheet

Current PartRFQ

LM5035CMH/NOPB

Texas InstrumentsIn Stock: 1315LM5035CMH/NOPB Datasheet

Parametric EquivalentRFQ

LM5035MH/NOPB

Texas InstrumentsIn Stock: 923LM5035MH/NOPB Datasheet

Parametric EquivalentRFQ

LM5039MH/NOPB

Texas InstrumentsIn Stock: 2806LM5039MH/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM5035AMH/NOPB are qualified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following criteria:

Electrical Equivalence Requirements:

• Identical output type (Transistor Driver)
• Identical function (Step-Up/Step-Down)
• Identical output configuration (Positive, Isolation Capable)
• Identical topology (Half-Bridge)
• Identical number of outputs and phases (1 output, 1 phase)
• Identical supply voltage range (13V ~ 105V)
• Identical switching frequency options (200kHz, 500kHz)
• Identical control features (Frequency Control, Ramp, Soft Start)
• Identical synchronous rectifier and clock sync capabilities

Mechanical Equivalence Requirements:

• Identical package type (20-PowerTSSOP)
• Identical physical dimensions (0.173", 4.40mm Width)
• Identical supplier device package (20-HTSSOP)
• Surface mount mounting type

Compliance Equivalence Requirements:

• ROHS3 Compliant
• REACH Unaffected
• MSL 1 (Unlimited)

All substitute parts listed below meet these criteria and are direct functional replacements for the LM5035AMH/NOPB.

Parameter Comparison

Engineering Selection Recommendations

The LM5035AMH/NOPB is classified as obsolete. Direct substitutes LM5035CMH/NOPB, LM5035MH/NOPB, and LM5039MH/NOPB are all classified as Last Time Buy, indicating limited future availability.

All substitute parts maintain full electrical and mechanical equivalence to the LM5035AMH/NOPB and are ROHS3 compliant with REACH unaffected status. Selection among the three substitute options should be based on current inventory availability and procurement lead times, as all parts are functionally identical for half-bridge DC-DC controller applications.

Frequently Asked Questions (FAQ)

Q: Can LM5035CMH/NOPB, LM5035MH/NOPB, and LM5039MH/NOPB be used interchangeably with LM5035AMH/NOPB?

A: Yes. All substitute parts are parametrically equivalent across electrical specifications, output configuration, topology, control features, operating temperature range, and package type. Direct pin-for-pin replacement is supported in 20-HTSSOP surface mount applications.

Q: Are there differences in packaging between the main part and substitutes?

A: The LM5035AMH/NOPB is supplied without specified packaging. Substitute parts LM5035CMH/NOPB, LM5035MH/NOPB, and LM5039MH/NOPB are supplied in Tube packaging. All parts use identical 20-PowerTSSOP (0.173", 4.40mm Width) physical package format.

Q: What is the difference between LM5035 and LM5039 base product numbers?

A: Both LM5035 and LM5039 base product numbers are qualified as substitutes and maintain identical electrical and mechanical specifications for half-bridge DC-DC controller applications. Selection between these base numbers should be determined by procurement availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LM5035CMH/NOPB, LM5035MH/NOPB, and LM5039MH/NOPB are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH unaffected status.

Q: What supply voltage range do these parts support?

A: All parts, including the main LM5035AMH/NOPB and all substitutes, support a supply voltage range of 13V to 105V, enabling operation across wide input voltage applications.

Q: Do these parts support synchronous rectification and clock synchronization?

A: Yes. All parts include integrated synchronous rectifier capability and clock sync functionality for optimized efficiency in half-bridge topologies.