IPS511S Equivalent & Substitute Parts

Part Overview

The IPS511S is an N-Channel power switch/driver manufactured by Infineon Technologies, designed for high-side switching applications with a 1:1 input-to-output ratio. This component operates across a load voltage range of 5.5V to 35V with a maximum output current of 1.7A and an on-resistance of 110mOhm typical. The device features auto restart capability, current limiting, open load detection, and over-temperature protection.

The IPS511S is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

IPS511S

Infineon TechnologiesIn Stock: 1690IPS511S Datasheet

Current PartRFQ

BTS441RGATMA1

Infineon TechnologiesIn Stock: 7487BTS441RGATMA1 Datasheet

MFR RecommendedRFQ

VN920DB5TR-E

STMicroelectronicsIn Stock: 8448VN920DB5TR-E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IPS511S are qualified based on the following mandatory electrical and mechanical parameters:

Core Compatibility Criteria:

• Switch type: General Purpose N-Channel High Side
• Output configuration: High Side, single output (1:1 ratio)
• Interface: On/Off control, Non-Inverting input
• Load voltage range: Must encompass or exceed 5.5V ~ 35V
• Output current: Must meet or exceed 1.7A maximum
• Operating temperature: Must support -40°C ~ 150°C range
• Mounting type: Surface Mount
• Package compatibility: TO-263-5 or equivalent footprint

Identified Substitutes:

1. BTS441RGATMA1 (Infineon Technologies) – Active status, higher current rating (17A), improved on-resistance (15mOhm), extended load voltage range (4.75V ~ 43V), RoHS3 compliant, same package family (TO-263-5)

2. VN920DB5TR-E (STMicroelectronics) – Active status, higher current rating (30A), improved on-resistance (18mOhm max), extended load voltage range (5.5V ~ 36V), RoHS3 compliant, P2PAK package (different footprint but compatible pinout topology)

Both substitutes meet all mandatory electrical parameters and exceed the performance envelope of the obsolete IPS511S.

Parameter Comparison

Engineering Selection Recommendations

BTS441RGATMA1 (Infineon Technologies PROFET® Series)

This substitute is the primary recommendation for direct replacement of the IPS511S. The BTS441RGATMA1 maintains identical package footprint (TO-263-5), operates within the same temperature range, and provides superior electrical performance with 10× higher current capacity and significantly lower on-resistance. The device is in active production status with RoHS3 compliance, ensuring long-term supply chain stability and regulatory alignment. The extended load voltage range (4.75V ~ 43V) provides additional design margin beyond the original specification.

VN920DB5TR-E (STMicroelectronics VIPOWER™ Series)

This substitute offers the highest performance envelope with 30A maximum output current and 18mOhm on-resistance. The device is in active production status with RoHS3 compliance. The P2PAK package differs from the original D2PAK footprint and requires PCB layout modification. This option is suitable for applications where increased current capacity and thermal performance justify the package transition. Load voltage range (5.5V ~ 36V) aligns closely with the original specification.

Both substitutes provide enhanced fault protection capabilities (addition of over-voltage protection) compared to the original IPS511S, supporting improved system reliability.

Frequently Asked Questions (FAQ)

Q: Can the BTS441RGATMA1 be used as a direct drop-in replacement for the IPS511S?

A: Yes. The BTS441RGATMA1 shares the identical TO-263-5 package footprint, pinout topology, and electrical interface (On/Off control, Non-Inverting input). No PCB layout modifications are required. The device operates within the same temperature range and load voltage envelope, with superior performance characteristics.

Q: What is the primary difference between the BTS441RGATMA1 and VN920DB5TR-E?

A: The BTS441RGATMA1 maintains the original D2PAK (TO-263-5) package, enabling direct PCB compatibility. The VN920DB5TR-E uses a P2PAK package, requiring PCB redesign. The VN920DB5TR-E provides higher current capacity (30A vs. 17A) and is manufactured by STMicroelectronics rather than Infineon. Both devices meet all electrical requirements for the IPS511S application.

Q: Are both substitutes RoHS compliant?

A: Yes. Both the BTS441RGATMA1 and VN920DB5TR-E are RoHS3 compliant. The original IPS511S is RoHS non-compliant, making either substitute the appropriate choice for applications requiring regulatory compliance.

Q: What is the impact of the lower on-resistance in the substitute parts?

A: Lower on-resistance (15mOhm for BTS441RGATMA1, 18mOhm for VN920DB5TR-E versus 110mOhm for IPS511S) reduces power dissipation and heat generation during switching operation. This improves thermal performance and efficiency, particularly in applications operating at or near the maximum current rating.

Q: Can the VN920DB5TR-E be used if PCB layout modification is acceptable?

A: Yes. The VN920DB5TR-E meets all electrical and functional requirements for the IPS511S application. The P2PAK package requires PCB redesign but provides superior current handling (30A) and thermal characteristics. This option is suitable for new designs or redesign cycles where the performance benefits justify the layout modification.

Q: What fault protection features do the substitutes provide?

A: Both substitutes include current limiting (fixed), open load detection, and over-temperature protection, matching the original IPS511S. Additionally, both provide over-voltage protection, which the original device does not include. This represents an enhancement to system protection capability.

Q: Are there inventory considerations for these substitutes?

A: Both substitutes are in active production status with substantial inventory availability (BTS441RGATMA1: 7465 pcs, VN920DB5TR-E: 8351 pcs), ensuring reliable supply chain access compared to the obsolete IPS511S.