Specification	LM5165QDGSRQ1

Current - Output	150 mA
Frequency - Switching [Max]	600 kHz
Frequency - Switching [Min]	50 kHz
Function	Step-Down
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	10-MSOP, 10-TFSOP
Package / Case [x]	3 mm
Package / Case [x]	0.118 in
Qualification	AEC-Q100
Supplier Device Package	10-VSSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	65 V
Voltage - Input (Min) [Min]	3 V
Voltage - Output (Max) [Max]	65 V
Voltage - Output (Min/Fixed)	1.23 V

LM5165-Q1 Series

Automotive, 3V-65V, 150mA Synchronous Buck Converter With Ultra-Low IQ

Part	Frequency - Switching [Max]	Qualification	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Grade	Supplier Device Package	Output Configuration	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)	Mounting Type	Topology	Voltage - Input (Max) [Max]	Output Type	Voltage - Input (Min) [Min]	Number of Outputs	Function	Output Type	Package / Case [x]	Package / Case [x]	Frequency - Switching	Supplied Contents	Regulator Topology	Board Type	Utilized IC / Part	Main Purpose	Outputs and Type	Outputs and Type	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Output	Frequency - Switching [Min]
Texas Instruments LM5165QDRCTQ1	600 kHz	AEC-Q100	10-VFDFN Exposed Pad	150 °C	-40 °C	150 mA	Automotive	10-VSON (3x3)	Positive	65 V	1.223 V	Surface Mount	Buck	65 V	Adjustable	3 V	1	Step-Down
Texas Instruments LM5165YQDGSTQ1	600 kHz	AEC-Q100	10-MSOP 10-TFSOP	150 °C	-40 °C	150 mA	Automotive	10-VSSOP	Positive		3.3 V	Surface Mount	Buck	65 V		3 V	1	Step-Down	1.81 mOhm	3 mm	0.118 in
Texas Instruments LM5165EVM-HD-P50A						25 mA																100 kHz	Board(s)	Buck	Fully Populated	LM5165	DC/DC Step Down	Non-Isolated	1	65 V	3 V	5 V
Texas Instruments LM5165EVM-HD-C50X						150 mA																240 kHz	Board(s)	Buck	Fully Populated	LM5165	DC/DC Step Down	Non-Isolated	1	65 V	3 V	5 V
Texas Instruments LM5165XDRCR	600 kHz		10-VFDFN Exposed Pad	150 °C	-40 °C	150 mA		10-VSON (3x3)	Positive		5 V	Surface Mount	Buck	65 V		3 V	1	Step-Down	1.81 mOhm
Texas Instruments LM5165QDGSRQ1	600 kHz	AEC-Q100	10-MSOP 10-TFSOP	150 °C	-40 °C	150 mA	Automotive	10-VSSOP	Positive	65 V	1.23 V	Surface Mount	Buck	65 V	Adjustable	3 V	1	Step-Down		3 mm	0.118 in												50 kHz
Texas Instruments LM5165YDRCR	600 kHz	AEC-Q100	10-VFDFN Exposed Pad	150 °C	-40 °C	150 mA	Automotive	10-VSON (3x3)	Positive		3.3 V	Surface Mount	Buck	65 V		3 V	1	Step-Down	1.81 mOhm
Texas Instruments LM5165XQDGSRQ1	600 kHz	AEC-Q100	10-MSOP 10-TFSOP	150 °C	-40 °C	150 mA	Automotive	10-VSSOP	Positive		5 V	Surface Mount	Buck	65 V		3 V	1	Step-Down	1.81 mOhm	3 mm	0.118 in												50 kHz
Texas Instruments LM5165XQDRCTQ1	600 kHz	AEC-Q100	10-VFDFN Exposed Pad	150 °C	-40 °C	150 mA	Automotive	10-VSON (3x3)	Positive		5 V	Surface Mount	Buck	65 V		3 V	1	Step-Down	1.81 mOhm
Texas Instruments LM5165YQDRCRQ1	600 kHz	AEC-Q100	10-VFDFN Exposed Pad	150 °C	-40 °C	150 mA	Automotive	10-VSON (3x3)	Positive		3.3 V	Surface Mount	Buck	65 V		3 V	1	Step-Down	1.81 mOhm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.98
		10	$ 3.57
		25	$ 3.38
		100	$ 2.93
		250	$ 2.78
		500	$ 2.49
		1000	$ 2.10
	Digi-Reel®	1	$ 3.98
		10	$ 3.57
		25	$ 3.38
		100	$ 2.93
		250	$ 2.78
		500	$ 2.49
		1000	$ 2.10
	Tape & Reel (TR)	2500	$ 2.00
		5000	$ 1.92
Texas Instruments	SMALL T&R	1	$ 2.85
		100	$ 2.50
		250	$ 1.75
		1000	$ 1.41

Description

General part information

LM5165-Q1 Series

The LM5165 device is a compact, easy-to-use, 3-V to 65-V, ultra-low IQsynchronous buck converter with high efficiency over wide input voltage and load current ranges. With integrated high-side and low-side power MOSFETs, up to 150-mA of output current can be delivered at fixed output voltages of 3.3 V or 5 V or at an adjustable output. The converter is designed to simplify implementation while providing options to optimize the performance for 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 while providing excellent line and load transient response and short PWM on-time for large step-down conversion ratios.

The high-side P-channel MOSFET can operate at 100% duty cycle for lowest dropout voltage and does not require a bootstrap capacitor for gate drive. Also, the current limit setpoint is adjustable to optimize inductor selection for a particular output current requirement. Selectable and adjustable start-up timing options include minimum delay (no soft start), internally fixed (900 µs), and externally programmable soft start using a capacitor. An open-drain PGOOD indicator can be used for sequencing, fault reporting, and output voltage monitoring. The LM5165 buck converter is available in a 10-pin, 3-mm × 3-mm, thermally- enhanced VSON-10 package with 0.5-mm pin pitch. The LM5165 and LM5165X is also available in the VSSOP-10 package.