LM5165XQDRCRQ1

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Texas Instruments

AUTOMOTIVE, 3V-65V, 150MA SYNCHRONOUS BUCK CONVERTER WITH ULTRA-LOW IQ

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LM5165XQDRCRQ1

Active

Texas Instruments

AUTOMOTIVE, 3V-65V, 150MA SYNCHRONOUS BUCK CONVERTER WITH ULTRA-LOW IQ

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM5165 Series

The LM5165-Q1 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-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in 10-pin VSON and VSSOP packages with 0.5-mm pin pitch.

Technical Specifications

Parameters and characteristics for this part

Specification	LM5165XQDRCRQ1

Current - Output	150 mA
Frequency - Switching (Max)	600 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	Fixed
Package / Case	10-VFDFN Exposed Pad
Package Length	3 mm
Package Name	10-VSON
Package Width	3 mm
Qualification	AEC-Q100
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	65 V
Voltage - Input (Min)	3 V
Voltage - Output (Min/Fixed)	5 V

LM5165 Series

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

Part	Output Type	Frequency - Switching (Max)	Voltage - Input (Min)	Topology	Output Configuration	Number of Outputs	Voltage - Output (Min/Fixed)	Synchronous Rectifier	Function	Mounting Type	Package / Case	Grade	Voltage - Input (Max)	Operating Temperature (Min)	Operating Temperature (Max)	Current - Output	Package Width	Package Name	Package Length	Qualification	Voltage - Output (Max)	Supplied Contents	Total Output Count	Non-Isolated Output Count	Board Type	Voltage - Output	Main Purpose	Contents	Regulator Topology	Frequency - Switching	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Utilized IC / Part	Frequency - Switching (Min)
Texas Instruments LM5165YQDRCTQ1	Fixed	600 kHz	3 V	Buck	Positive	1	3.3 V	Yes	Step-Down	Surface Mount	10-VFDFN Exposed Pad	Automotive	65 V	-40 °C	150 °C	150 mA	3 mm	10-VSON	3 mm	AEC-Q100
Texas Instruments LM5165YDRCT	Fixed	600 kHz	3 V	Buck	Positive	1	3.3 V	Yes	Step-Down	Surface Mount	10-VFDFN Exposed Pad		65 V	-40 °C	150 °C	150 mA	3 mm	10-VSON	3 mm
Texas Instruments LM5165QDRCTQ1	Adjustable	600 kHz	3 V	Buck	Positive	1	1.223 V	Yes	Step-Down	Surface Mount	10-VFDFN Exposed Pad	Automotive	65 V	-40 °C	150 °C	150 mA	3 mm	10-VSON	3 mm	AEC-Q100	65 V
Texas Instruments LM5165YQDGSTQ1	Fixed	600 kHz	3 V	Buck	Positive	1	3.3 V	Yes	Step-Down	Surface Mount		Automotive	65 V	-40 °C	150 °C	150 mA	3 mm	10-MSOP 10-TFSOP 10-VSSOP	0.118 in	AEC-Q100
Texas Instruments LM5165EVM-HD-P50A	Non-Isolated															25 mA						Board(s)	1	1 count	Fully Populated	5 VDC	DC/DC Step Down	Board	Buck	100 kHz	65 V	3 V	LM5165
Texas Instruments LM5165EVM-HD-C50X	Non-Isolated															150 mA						Board(s)	1	1 count	Fully Populated	5 VDC	DC/DC Step Down	Board	Buck	240 kHz	65 V	3 V	LM5165
Texas Instruments LM5165XDRCR	Fixed	600 kHz	3 V	Buck	Positive	1	5 V	Yes	Step-Down	Surface Mount	10-VFDFN Exposed Pad		65 V	-40 °C	150 °C	150 mA	3 mm	10-VSON	3 mm
Texas Instruments LM5165QDGSRQ1	Adjustable	600 kHz	3 V	Buck	Positive	1	1.23 V	Yes	Step-Down	Surface Mount		Automotive	65 V	-40 °C	150 °C	150 mA	3 mm	10-MSOP 10-TFSOP 10-VSSOP	0.118 in	AEC-Q100	65 V													50 kHz
Texas Instruments LM5165DRCR	Adjustable	600 kHz	3 V	Buck	Positive	1	1.223 V	Yes	Step-Down	Surface Mount	10-VFDFN Exposed Pad		65 V	-40 °C	150 °C	150 mA	3 mm	10-VSON	3 mm		65 V
Texas Instruments LM5165YDRCR	Fixed	600 kHz	3 V	Buck	Positive	1	3.3 V	Yes	Step-Down	Surface Mount	10-VFDFN Exposed Pad	Automotive	65 V	-40 °C	150 °C	150 mA	3 mm	10-VSON	3 mm	AEC-Q100