Voltage Regulators - Switching Regulators

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LM5165/LM5165-Q1 Synchronous Buck Converters

Texas Instruments LM5165/LM5165-Q1 Synchronous Buck Converters are compact, easy-to-use, 3V to 65V ultra-low I_Q synchronous buck converters with high efficiency over wide input voltage and load current ranges. With integrated high-side and low-side power MOSFETs, up to 150mA of output current can be delivered at fixed output voltages of 3.3V, 5V, or an adjustable output. The Texas Instruments LM5165/LM5165-Q1 converters are designed to simplify implementation while providing options to optimize the performance of the target application. Pulse Frequency Modulation (PFM) mode is selected for optimal light-load efficiency or Constant On-Time (COT) control for nearly constant operating frequency. Both control schemes do not require loop compensation, providing excellent line and load transient response and short PWM on time for large step-down conversion ratios. The LM5165-Q1 devices are AEC-Q100 qualified for automotive applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	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
Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165XDRCR LM5165XDRCT Texas Instruments 1: $5.412 7.194In Stock	Mfr. Part # LM5165XDRCT Mouser Part # 595-LM5165XDRCT	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165XDRCR Learn More about Texas Instruments ti lm5165 converter	Datasheet	7.194In Stock	Cut Tape $5.412 $4.113 $3.794 $3.441 Reel $2.848 View $2.780 $2.734 $2.711 $2.563 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-EP-10	Buck	5 V	150 mA	1 Output	10.5 uA	600 kHz	- 40 C	+ 150 C		LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165XQD A 595-LM5165XQDRCRQ1 LM5165XQDRCTQ1 Texas Instruments 1: $5.981 8.511In Stock	Mfr. Part # LM5165XQDRCTQ1 Mouser Part # 595-LM5165XQDRCTQ1	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165XQD A 595-LM5165XQDRCRQ1 Learn More about Texas Instruments ti lm5165 converter	Datasheet	8.511In Stock	Cut Tape $5.981 $4.557 $4.204 $3.805 Reel $3.122 View $3.110 $3.099 $3.087 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-EP-10	Buck	5 V	150 mA	1 Output	10.5 uA	600 kHz	- 40 C	+ 150 C	AEC-Q100	LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu LM5165QDGSRQ1 Texas Instruments 1: $5.309 2.218In Stock	Mfr. Part # LM5165QDGSRQ1 Mouser Part # 595-LM5165QDGSRQ1	Texas Instruments	Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu Learn More about Texas Instruments ti lm5165 converter	Datasheet	2.218In Stock	Cut Tape $5.309 $3.999 $3.680 $3.315 View Reel $2.860 $3.156 $3.133 $2.939 $2.860 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	VSSOP-10							- 40 C	+ 150 C		LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165YDRCT LM5165YDRCR Texas Instruments 1: $4.614 2.338In Stock	Mfr. Part # LM5165YDRCR Mouser Part # 595-LM5165YDRCR	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165YDRCT Learn More about Texas Instruments ti lm5165 converter	Datasheet	2.338In Stock	Cut Tape $4.614 $3.498 $3.213 $2.905 View Reel $2.484 $2.757 $2.734 $2.643 $2.484 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3.000	SMD/SMT	VSON-EP-10	Buck	3.3 V	150 mA	1 Output	10.5 uA	600 kHz	- 40 C	+ 150 C		LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165QDR A 595-LM5165QDRCRQ1 LM5165QDRCTQ1 Texas Instruments 1: $6.209 491In Stock	Mfr. Part # LM5165QDRCTQ1 Mouser Part # 595-LM5165QDRCTQ1	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165QDR A 595-LM5165QDRCRQ1 Learn More about Texas Instruments ti lm5165 converter	Datasheet	491In Stock	Cut Tape $6.209 $4.739 $4.363 $3.965 Reel $3.760 View $3.612 $3.543 $3.498 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-EP-10	Buck	Adjustable	150 mA	1 Output	10.5 uA	600 kHz	- 40 C	+ 150 C	AEC-Q100	LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165XQD A 595-LM5165XQDRCTQ1 LM5165XQDRCRQ1 Texas Instruments 1: $5.286 903In Stock	Mfr. Part # LM5165XQDRCRQ1 Mouser Part # 595-LM5165XQDRCRQ1	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165XQD A 595-LM5165XQDRCTQ1 Learn More about Texas Instruments ti lm5165 converter	Datasheet	903In Stock	Cut Tape $5.286 $4.489 $3.315 Reel $2.939 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	SMD/SMT	VSON-EP-10	Buck	5 V	150 mA	1 Output		600 kHz	- 40 C	+ 150 C	AEC-Q100	LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165DRCR LM5165DRCT Texas Instruments 1: $5.491 6In Stock 4.750Expected 5/31/2027	Mfr. Part # LM5165DRCT Mouser Part # 595-LM5165DRCT	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165DRCR Learn More about Texas Instruments ti lm5165 converter	Datasheet	6In Stock 4.750Expected 5/31/2027	Cut Tape $5.491 $4.147 $3.817 $3.452 Reel $3.281 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-EP-10	Buck	Adjustable	150 mA	1 Output	10.5 uA	600 kHz	- 40 C	+ 150 C		LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165XDRCT LM5165XDRCR Texas Instruments 1: $4.614 3.492In Stock	Mfr. Part # LM5165XDRCR Mouser Part # 595-LM5165XDRCR	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165XDRCT Learn More about Texas Instruments ti lm5165 converter	Datasheet	3.492In Stock	Cut Tape $4.614 $3.498 $3.213 $2.905 View Reel $2.495 $2.757 $2.734 $2.643 $2.495 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	SMD/SMT	VSON-EP-10	Buck	5 V	150 mA	1 Output	10.5 uA	600 kHz	- 40 C	+ 150 C		LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165YDRCR LM5165YDRCT Texas Instruments 1: $5.560 298In Stock	Mfr. Part # LM5165YDRCT Mouser Part # 595-LM5165YDRCT	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165YDRCR Learn More about Texas Instruments ti lm5165 converter	Datasheet	298In Stock	Cut Tape $5.560 $4.227 $3.896 $3.543 Reel $3.395 View $3.270 $3.144 $2.905 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-EP-10	Buck	3.3 V	150 mA	1 Output	10.5 uA	600 kHz	- 40 C	+ 150 C		LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu A 595-LM5165YQDGSRQ1 LM5165YQDGSTQ1 Texas Instruments 1: $5.913 273In Stock	Mfr. Part # LM5165YQDGSTQ1 Mouser Part # 595-LM5165YQDGSTQ1	Texas Instruments	Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu A 595-LM5165YQDGSRQ1 Learn More about Texas Instruments ti lm5165 converter	Datasheet	273In Stock	Cut Tape $5.913 $4.512 $4.158 $3.908 Reel $3.714 View $3.372 $3.315 $3.281 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSSOP-10	Buck	3.3 V	150 mA	1 Output	10.5 uA	50 kHz to 600 kHz	- 40 C	+ 150 C	AEC-Q100	LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165YQD A 595-LM5165YQDRCRQ1 LM5165YQDRCTQ1 Texas Instruments 1: $6.209 439In Stock	Mfr. Part # LM5165YQDRCTQ1 Mouser Part # 595-LM5165YQDRCTQ1	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165YQD A 595-LM5165YQDRCRQ1 Learn More about Texas Instruments ti lm5165 converter	Datasheet	439In Stock	Cut Tape $6.209 $4.739 $4.363 $3.965 Reel $3.760 View $3.612 $3.543 $3.498 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VSON-EP-10	Buck	3.3 V	150 mA	1 Output	10.5 uA	600 kHz	- 40 C	+ 150 C	AEC-Q100	LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165DRCT LM5165DRCR Texas Instruments 1: $4.181 9.000Expected 5/31/2027	Mfr. Part # LM5165DRCR Mouser Part # 595-LM5165DRCR	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165DRCT Learn More about Texas Instruments ti lm5165 converter	Datasheet	9.000Expected 5/31/2027	Cut Tape $4.181 $3.247 $2.917 $2.905 View Reel $2.506 $2.757 $2.734 $2.506 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	SMD/SMT	VSON-EP-10	Buck	1.23 V to 65 V	150 mA	1 Output	10.5 uA	50 kHz to 600 kHz	- 40 C	+ 150 C		LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165QDR A 595-LM5165QDRCTQ1 LM5165QDRCRQ1 Texas Instruments 1: $5.480 6.000Expected 5/31/2027	Mfr. Part # LM5165QDRCRQ1 Mouser Part # 595-LM5165QDRCRQ1	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165QDR A 595-LM5165QDRCTQ1 Learn More about Texas Instruments ti lm5165 converter	Datasheet	6.000Expected 5/31/2027	Cut Tape $5.480 $4.170 $3.839 $3.475 View Reel $3.087 $3.304 $3.293 $3.110 $3.087 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	SMD/SMT	VSON-EP-10	Buck	Adjustable	150 mA	1 Output	10.5 uA	600 kHz	- 40 C	+ 150 C	AEC-Q100	LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu LM5165XQDGSRQ1 Texas Instruments 1: $5.206 2.498Expected 6/14/2027	Mfr. Part # LM5165XQDGSRQ1 Mouser Part # 595-LM5165XQDGSRQ1	Texas Instruments	Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu Learn More about Texas Instruments ti lm5165 converter	Datasheet	2.498Expected 6/14/2027	Cut Tape $5.206 $3.953 $3.634 $3.293 $3.133 Reel $2.860 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	VSSOP-10	Buck	5 V	150 mA	1 Output	10.5 uA	200 kHz to 2.2 MHz	- 40 C	+ 125 C		LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu A 595-LM5165YQDGSTQ1 LM5165YQDGSRQ1 Texas Instruments 1: $5.457 5.000Expected 12/18/2026	Mfr. Part # LM5165YQDGSRQ1 Mouser Part # 595-LM5165YQDGSRQ1	Texas Instruments	Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu A 595-LM5165YQDGSTQ1 Learn More about Texas Instruments ti lm5165 converter	Datasheet	5.000Expected 12/18/2026	Cut Tape $5.457 $4.136 $3.805 $3.441 View Reel $2.848 $3.270 $3.258 $3.076 $2.848 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	VSSOP-10	Buck	3.3 V	150 mA	1 Output	10.5 uA	50 kHz to 600 kHz	- 40 C	+ 150 C	AEC-Q100	LM5165	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165YQD A 595-LM5165YQDRCTQ1 LM5165YQDRCRQ1 Texas Instruments 3.000: $3.349 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # LM5165YQDRCRQ1 Mouser Part # 595-LM5165YQDRCRQ1	Texas Instruments	Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165YQD A 595-LM5165YQDRCTQ1 Learn More about Texas Instruments ti lm5165 converter	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel $3.349	Min.: 3.000 Mult.: 3.000 : 3.000	SMD/SMT	VSON-EP-10	Buck	3.3 V	150 mA	1 Output		600 kHz	- 40 C	+ 150 C	AEC-Q100	LM5165	Reel

LM5165/LM5165-Q1 Synchronous Buck Converters

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LM5165/LM5165-Q1 Synchronous Buck Converters

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