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LMS36353QRNLRQ1 is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BUCK 3.3V 3.5A 22VQFN. Review the specifications below when checking this part for your BOM.
Voltage Regulators - DC DC Switching Regulators specifications for LMS36353QRNLRQ1
- Description：IC REG BUCK 3.3V 3.5A 22VQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：3.9V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：3.5A
- Frequency - Switching：250kHz ~ 500kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：22-PowerVFQFN
- Supplier Device Package：22-VQFN-HR (5x4)
- Grade：Automotive
- Qualification：AEC-Q100
Voltage Regulators - DC DC Switching Regulators datasheet and documents for LMS36353QRNLRQ1
Voltage Regulators - DC DC Switching Regulators Overview
The LMS36353QRNLRQ1 is a synchronous step-down DC-DC converter from the LMS3635-Q1 family, manufactured by Texas Instruments. It provides a fixed 3.3 V output with a maximum current capability of 3.5 A. The device operates within an input voltage range of 3.9 V to 36 V and utilizes a fixed switching frequency of 400 kHz. It features a low quiescent current of 7.5 uA and supports operation temperatures from -40°C to +150°C. Packaged in a 22-pin VQFN-HR (5x4 mm) format, it holds AEC-Q100 qualification for automotive applications.
Voltage Regulators - DC DC Switching Regulators Feature Summary
- Integrated synchronous rectification for high efficiency
- Fixed 400-kHz switching frequency for compact external component sizing
- Extended junction temperature range up to 150°C
- Automotive-grade reliability via AEC-Q100 certification
Voltage Regulators - DC DC Switching Regulators Applications
- Automotive infotainment systems
- Instrumentation clusters
- Body control modules
- Telematics units
Voltage Regulators - DC DC Switching Regulators Procurement Notes
Verify the suffix 'RQ1' indicates tape-and-reel packaging configuration distinct from other variants. Confirm the specific output voltage matches the design requirement, as this part number corresponds to the fixed 3.3 V version within the LMS3635-Q1 series. Ensure compatibility with the 22-VQFN-HR footprint during PCB layout review.
Voltage Regulators - DC DC Switching Regulators Selection Notes
Select this component when a fixed 3.3 V rail is required at up to 3.5 A in automotive environments. Compare against adjustable variants like LMS3635MQRNLRQ1 if voltage flexibility is needed. Consider the LMS3655-Q1 series if higher current capacity exceeding 3.5 A is necessary for the application load.
Voltage Regulators - DC DC Switching Regulators Part Context
This part belongs to the LMS3635-Q1 family, which shares the same package and pinout with the LMS3655-Q1 family but offers lower current ratings. It serves as a direct replacement for older generations like the LM436xx series in space-constrained automotive designs requiring robust thermal performance.
Voltage Regulators - DC DC Switching Regulators Replacement Considerations
LMS36353QRNLTQ1 is the cut-tape equivalent. LMS3635MQRNLRQ1 is the adjustable output alternative. LMS36553QRNLRQ1 is the 5.5-A current upgrade option.
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