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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Part #

Switching Voltage Regulators 3V-65V 150mA Automo tive A 595-LM5165QDR A 595-LM5165QDRCTQ1

LM5165QDRCRQ1
Texas Instruments
1: S/18.22
16,528In Stock

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

Datasheet

16,528In Stock

Cut Tape

S/18.22

S/13.86

S/12.77

S/11.56

View

Reel

S/9.96

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 3V-65V 150mA Automo tive A 595-LM5165XQD A 595-LM5165XQDRCRQ1

LM5165XQDRCTQ1
Texas Instruments
1: S/20.44
8,884In 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

Datasheet

8,884In Stock

Cut Tape

S/20.44

S/15.57

S/14.36

S/13.00

Reel

S/11.76

View

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 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165XDRCR

LM5165XDRCT
Texas Instruments
1: S/18.49
7,893In 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

Datasheet

7,893In Stock

Cut Tape

S/18.49

S/14.05

S/12.96

S/11.76

Reel

S/10.78

View

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 Automotive 3V-65V 15 0mA Synchronous Bu

LM5165XQDGSRQ1
Texas Instruments
1: S/17.79
2,269In Stock

Mfr. Part #
LM5165XQDGSRQ1

Mouser Part #
595-LM5165XQDGSRQ1

Texas Instruments

Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu

Learn More

Datasheet

2,269In Stock

Cut Tape

S/17.79

S/13.51

S/12.42

S/11.25

View

Reel

S/9.61

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 3V-65V 150mA Sync B uck Converter A 595- A 595-LM5165DRCR

LM5165DRCT
Texas Instruments
1: S/18.49
3,654In Stock

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

Datasheet

3,654In Stock

Cut Tape

S/18.49

S/14.05

S/12.96

S/11.76

Reel

S/10.78

View

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 Automotive 3V-65V 15 0mA Synchronous Bu A 595-LM5165YQDGSRQ1

LM5165YQDGSTQ1
Texas Instruments
1: S/19.89
404In 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

Datasheet

404In Stock

Cut Tape

S/19.89

S/15.18

S/13.97

S/12.69

Reel

S/10.78

Quote

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 Sync B uck Converter A 595- A 595-LM5165DRCT

LM5165DRCR
Texas Instruments
1: S/14.32
8,071In Stock

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

Datasheet

8,071In Stock

Cut Tape

S/14.32

S/11.09

S/9.96

S/9.93

S/9.50

Reel

S/8.02

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 Automotive 3V-65V 15 0mA Synchronous Bu

LM5165QDGSRQ1
Texas Instruments
1: S/17.52
2,250In Stock

Mfr. Part #
LM5165QDGSRQ1

Mouser Part #
595-LM5165QDGSRQ1

Texas Instruments

Switching Voltage Regulators Automotive 3V-65V 15 0mA Synchronous Bu

Learn More

Datasheet

2,250In Stock

Cut Tape

S/17.52

S/14.91

Reel

S/10.20

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 Automo tive A 595-LM5165QDR A 595-LM5165QDRCRQ1

LM5165QDRCTQ1
Texas Instruments
1: S/20.44
900In 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

Datasheet

900In Stock

Cut Tape

S/20.44

S/15.57

S/14.36

S/13.00

Reel

S/12.34

View

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 Sync B uck Converter A 595- A 595-LM5165XDRCT

LM5165XDRCR
Texas Instruments
1: S/15.76
881In Stock
3,000Expected 12/28/2026

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

Datasheet

881In Stock

3,000Expected 12/28/2026

Cut Tape

S/15.76

S/11.95

S/10.98

S/9.93

View

Reel

S/8.52

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 Automo tive A 595-LM5165XQD A 595-LM5165XQDRCTQ1

LM5165XQDRCRQ1
Texas Instruments
1: S/18.65
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

Datasheet

903In Stock

Cut Tape

S/18.65

S/14.05

S/12.92

S/11.68

S/11.09

Reel

S/9.38

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-LM5165YDRCT

LM5165YDRCR
Texas Instruments
1: S/15.76
2,084In 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

Datasheet

2,084In Stock

Cut Tape

S/15.76

S/11.95

S/10.98

S/9.93

View

Reel

S/8.52

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-LM5165YQD A 595-LM5165YQDRCRQ1

LM5165YQDRCTQ1
Texas Instruments
1: S/20.44
500In 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

Datasheet

500In Stock

Cut Tape

S/20.44

S/15.57

S/14.36

S/13.00

Reel

S/12.34

View

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-LM5165YDRCR

LM5165YDRCT
Texas Instruments
1: S/18.49
461In 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

Datasheet

461In Stock

Cut Tape

S/18.49

S/14.05

S/12.96

S/11.76

Reel

S/11.13

View

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-LM5165YQDGSTQ1

LM5165YQDGSRQ1
Texas Instruments
1: S/17.79
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

Datasheet

5,000Expected 12/18/2026

Cut Tape

S/17.79

S/13.51

S/12.42

S/11.25

View

Reel

S/9.73

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: S/11.02
Non-Stocked Lead-Time 9 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

Datasheet

Non-Stocked Lead-Time 9 Weeks

Reel

S/11.02

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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