MAX5048BAUT-T Equivalent & Substitute Parts

Part Overview

The MAX5048BAUT-T is a low-side gate driver IC manufactured by Analog Devices Inc./Maxim Integrated, designed for driving N-channel MOSFETs in power management applications. This device features inverting and non-inverting input configurations with a single-channel architecture in a SOT-23-6 surface mount package.

The MAX5048BAUT-T 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 applications utilizing this gate driver topology.

Key Parameters

Parameter	Value
Driven Configuration	Low-Side
Channel Type	Single
Gate Type	N-Channel MOSFET
Voltage - Supply	4V ~ 12.6V
Logic Voltage - VIL, VIH	0.8V, 2.4V
Current - Peak Output (Source, Sink)	1.3A, 7.6A
Input Type	Inverting, Non-Inverting
Rise / Fall Time (Typ)	82ns, 12.5ns
Operating Temperature	-40°C ~ 150°C (TJ)
Package / Case	SOT-23-6
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MAX5048BAUT-T are identified based on functional equivalence within the following critical parameters:

Driven Configuration: Low-side gate driver topology
Channel Architecture: Single-channel N-channel MOSFET driver
Input Configuration: Inverting and non-inverting input support
Supply Voltage Range: Compatibility with 4V to 12.6V operation
Logic Voltage Thresholds: VIL and VIH levels suitable for standard logic interfacing
Peak Output Current: Source and sink current capabilities meeting or exceeding 1.3A and 7.6A respectively
Operating Temperature Range: Support for -40°C to 150°C junction temperature
Surface Mount Packaging: SOT-23-6 or equivalent form factor
Compliance Standards: ROHS3 compliance and MSL Level 1 rating

Substitutes are categorized as direct equivalents (identical part number variants) and manufacturer-recommended alternatives (functionally equivalent from different manufacturers).

Parameter Comparison

Parameter	MAX5048BAUT-T	MAX5048BAUT+T	LM5112SD/NOPB
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Texas Instruments
Product Status	Obsolete	Active	Active
Driven Configuration	Low-Side	Low-Side	Low-Side
Channel Type	Single	Single	Single
Gate Type	N-Channel MOSFET	N-Channel MOSFET	N-Channel MOSFET
Voltage - Supply	4V ~ 12.6V	4V ~ 12.6V	4.6V ~ 14V
Logic Voltage - VIL, VIH	0.8V, 2.4V	0.8V, 2.4V	0.8V, 2.3V
Current - Peak Output (Source, Sink)	1.3A, 7.6A	1.3A, 7.6A	3A, 7A
Input Type	Inverting, Non-Inverting	Inverting, Non-Inverting	Inverting, Non-Inverting
Rise / Fall Time (Typ)	82ns, 12.5ns	82ns, 12.5ns	14ns, 12ns
Operating Temperature	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 125°C (TJ)
Package / Case	SOT-23-6	SOT-23-6	6-WDFN Exposed Pad
Supplier Device Package	SOT-6	SOT-6	6-WSON (3x3)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

MAX5048BAUT+T is the direct equivalent substitute for the obsolete MAX5048BAUT-T. This part maintains identical electrical specifications, operating parameters, and package configuration while offering active product status and significantly higher inventory availability (35,300 units versus 858 units). Selection of MAX5048BAUT+T eliminates obsolescence risk and provides supply chain continuity without design modification.

LM5112SD/NOPB is a manufacturer-recommended alternative from Texas Instruments suitable for applications where package form factor change is acceptable. This device provides enhanced performance characteristics including faster rise/fall times (14ns/12ns versus 82ns/12.5ns), higher source current capability (3A versus 1.3A), and extended supply voltage range (4.6V ~ 14V versus 4V ~ 12.6V). The LM5112SD/NOPB operates within a reduced temperature range (-40°C ~ 125°C versus -40°C ~ 150°C) and utilizes a 6-WSON package instead of SOT-23-6, requiring PCB layout modification. Both devices maintain ROHS3 compliance and MSL Level 1 rating.

Frequently Asked Questions (FAQ)

Q: Can MAX5048BAUT+T be used as a direct replacement for MAX5048BAUT-T without PCB modification?

A: Yes. MAX5048BAUT+T is electrically and mechanically identical to MAX5048BAUT-T, utilizing the same SOT-23-6 package and pin configuration. No design changes are required.

Q: What are the key differences between MAX5048BAUT-T and LM5112SD/NOPB?

A: The primary differences are package form factor (SOT-23-6 versus 6-WSON), rise/fall time performance (82ns/12.5ns versus 14ns/12ns), source current capability (1.3A versus 3A), supply voltage range (4V~12.6V versus 4.6V~14V), and maximum operating temperature (150°C versus 125°C). LM5112SD/NOPB requires PCB layout redesign due to package change.

Q: Is LM5112SD/NOPB suitable for applications requiring 150°C junction temperature operation?

A: No. LM5112SD/NOPB maximum operating temperature is 125°C (TJ). Applications requiring 150°C operation must use MAX5048BAUT+T.

Q: Are all three parts ROHS3 compliant?

A: Yes. MAX5048BAUT-T, MAX5048BAUT+T, and LM5112SD/NOPB are all ROHS3 compliant with MSL Level 1 rating.

Q: Which substitute part should be selected for new designs?

A: MAX5048BAUT+T is recommended for designs requiring identical form factor and performance. LM5112SD/NOPB is suitable for new designs where package change is acceptable and enhanced performance characteristics provide system benefits.

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