LMS3635-Q1 & LMS3655/-Q1 Step-Down Converters

Texas Instruments LMS3635-Q1 and LMS3655/LMS3655-Q1 36V Synchronous Buck Step-Down Converters are optimized for high-performance applications, providing an output voltage of 3.3V, 5V, or an adjustable output of 1V to 15V. Seamless transition between PWM and PFM modes, along with a low quiescent current, ensures high efficiency and superior transient responses at all loads. Advanced high-speed circuitry allows the LMS3655-Q1 to regulate an input of 24V to an output of 3.3V at a fixed frequency of 400kHz while also enabling a continuous load current of 5.5A. An innovative frequency foldback architecture allows this device to regulate a 3.3V output from an input voltage of only 3.5V. The input voltage can range up to 36V, with transient tolerance up to 42V, easing input surge protection design. The LMS3635-Q1 and LMS3655-Q1 devices are AEC-Q100 qualified for automotive applications.

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Package/Case
Topology
Output Voltage
Output Current
Number of Outputs
Quiescent Current
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Series
Packaging
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d A A 595-LMS3655NQRNLRQ1
Datasheet
204In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT VQFN-HR-22 Buck 3.3 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d A A 595-LMS3655AQRNLRQ1
Datasheet
280In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT VQFN-HR-22 Buck 3.3 V to 6 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 3.5A /5.5A 36V Sync h 400kHz A 595-LMS36 A 595-LMS36555QRNLRQ1
Datasheet
150In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT VQFN-HR-22 Buck 5 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 5.5A 36V Synchronou s 400kHz Step-Down A A 595-LMS3655AMRNLR
Datasheet
739In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT VQFN-HR-22 Buck 3.3 V to 6 V 5.5 A 1 Output 32 uA 400 kHz - 40 C + 125 C LMS3655 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 5.5A 36VSynchr400kHz Step-Down Converter A 595-LMS3655MMRNLT
Datasheet
2,751In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT VQFN-HR-22 Buck 3.3 V to 6 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 125 C LMS3655 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 5.5A 36VSynchr400kHz Step-Down Converter A 595-LMS3655MMRNLR
Datasheet
450In Stock
250Expected 04/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT VQFN-HR-22 Buck 3.3 V to 6 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 125 C LMS3655 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 3.5A /5.5A 36V Sync h 400kHz A 595-LMS36 A 595-LMS3655MQRNLRQ1
Datasheet
262In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT VQFN-HR-22 Buck 3.3 V to 6 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d A A 595-LMS3655LQRNLRQ1
Datasheet
66In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT VQFN-HR-22 Buck 5 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d A A 595-LMS36553QRNLTQ1
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 3,000
Mult.: 3,000
: 3,000

SMD/SMT VQFN-HR-22 Buck 3.3 V 5.5 A 1 Output 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d A A 595-LMS36553QRNLRQ1
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 250
Mult.: 250
: 250

SMD/SMT VQFN-HR-22 Buck 3.3 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel
Texas Instruments Switching Voltage Regulators 3.5A /5.5A 36V Sync h 400kHz A 595-LMS36 A 595-LMS36555QRNLTQ1
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 3,000
Mult.: 3,000
: 3,000

SMD/SMT VQFN-HR-22 Buck 5 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel
Texas Instruments Switching Voltage Regulators 5.5A 36V Synchronou s 400kHz Step-Down A A 595-LMS3655AMRNLT
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 3,000
Mult.: 3,000
: 3,000

SMD/SMT VQFN-HR-22 Buck 3.3 V to 6 V 5.5 A 1 Output 400 kHz - 40 C + 125 C LMS3655 Reel
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d A A 595-LMS3655AQRNLTQ1
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 3,000
Mult.: 3,000
: 3,000

SMD/SMT VQFN-HR-22 Buck 3.3 V to 6 V 5.5 A 1 Output 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d A A 595-LMS3655LQRNLTQ1
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 3,000
Mult.: 3,000
: 3,000

SMD/SMT VQFN-HR-22 Buck 5 V 5.5 A 1 Output 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel
Texas Instruments Switching Voltage Regulators 3.5A /5.5A 36V Sync h 400kHz A 595-LMS36 A 595-LMS3655MQRNLTQ1
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 3,000
Mult.: 3,000
: 3,000

SMD/SMT VQFN-HR-22 Buck 3.3 V to 6 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 3,000
Mult.: 3,000
: 3,000

SMD/SMT VQFN-HR-22 Buck Adjustable 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 125 C LMS3655 Reel
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d A A 595-LMS3655NQRNLTQ1
Datasheet
Non-Stocked Lead-Time 9 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT VQFN-HR-22 Buck 3.3 V 5.5 A 1 Output 400 kHz - 40 C + 150 C AEC-Q100 LMS3655 Reel, Cut Tape, MouseReel
Texas Instruments Switching Voltage Regulators 5.5-A 36-V synchron ous 400-kHz step-d
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 3,000
Mult.: 3,000
: 3,000

SMD/SMT VQFN-HR-22 Buck 3.3 V 5.5 A 1 Output 7.5 uA 400 kHz - 40 C + 125 C LMS3655 Reel