LM5155QDSSTQ1

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Texas Instruments

2.2-MHZ WIDE VIN, 1.5-A MOSFET DRIVER, NON-SYNCHRONOUS BOOST CONTROLLER, AEC-Q100 QUALIFIED

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LM5155QDSSTQ1

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Texas Instruments

2.2-MHZ WIDE VIN, 1.5-A MOSFET DRIVER, NON-SYNCHRONOUS BOOST CONTROLLER, AEC-Q100 QUALIFIED

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM5155 Series

The LM5155x-Q1 (LM5155-Q1 and LM51551-Q1) is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.

The LM5155x-Q1 can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.

The LM5155x-Q1 (LM5155-Q1 and LM51551-Q1) is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.

Technical Specifications

Parameters and characteristics for this part

Specification	LM5155QDSSTQ1

Clock Sync	Yes
Control Features	Soft Start
Duty Cycle (Max)	93 %
Frequency - Switching (Max)	2.2 MHz
Frequency - Switching (Min)	100 kHz
Function	Step-Up, Step-Up/Step-Down
Grade	Automotive
Mounting Type	Wettable Flank, Surface Mount
Number of Outputs	1
Operating Temperature (Max)	150 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	12-WFDFN Exposed Pad
Package Length	3 mm
Package Name	12-WSON
Package Width	2 mm
Qualification	AEC-Q100
Synchronous Rectifier	No
Topology	SEPIC, Flyback, Boost
Voltage - Supply (Vcc/Vdd) Maximum	45 V
Voltage - Supply (Vcc/Vdd) Minimum	2.97 V

LM5155 Series

2.2-MHz wide VIN, 1.5-A MOSFET driver, non-synchronous boost controller, AEC-Q100 qualified

Part	Board Type	Supplied Contents	Total Output Count	Output Type	Non-Isolated Output Count	Contents	Regulator Topology	Voltage - Input (Minimum)	Voltage - Input (Maximum)	Current - Output	Frequency - Switching	Main Purpose	Voltage - Output	Utilized IC / Part	Package / Case	Output Configuration	Topology	Output Phases	Synchronous Rectifier	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Control Features	Frequency - Switching (Min)	Frequency - Switching (Max)	Clock Sync	Number of Outputs	Mounting Type	Function	Package Name	Package Width	Package Length	Operating Temperature (Max)	Operating Temperature (Min)	Duty Cycle (Max)	Qualification	Grade
Texas Instruments LM5155EVM-SEPIC	Fully Populated	Board(s)	1	Non-Isolated	1 count	Board	Boost SEPIC	6 V	18 V	2 A	2.2 MHz	DC/DC Step Up	12 V	LM5155-Q1
Texas Instruments LM5155DSST				Transistor Driver											12-WFDFN Exposed Pad	Positive	Boost Flyback SEPIC	1	No	45 V	2.97 V	Soft Start	100 kHz	2.2 MHz	Yes	1	Surface Mount	Step-Up Step-Up/Step-Down	12-WSON	2 mm	3 mm	125 °C	-40 °C	96 %
Texas Instruments LM5155QDSSRQ1				Transistor Driver											12-WFDFN Exposed Pad	Positive	Boost Flyback SEPIC	1	No	45 V	2.97 V	Soft Start	100 kHz	2.2 MHz	Yes	1	Surface Mount Wettable Flank	Step-Up Step-Up/Step-Down	12-WSON	2 mm	3 mm	150 °C	-40 °C	93 %	AEC-Q100	Automotive
Texas Instruments LM5155DSSR				Transistor Driver											12-WFDFN Exposed Pad	Positive	Boost Flyback SEPIC	1	No	45 V	2.97 V	Soft Start	100 kHz	2.2 MHz	Yes	1	Surface Mount	Step-Up Step-Up/Step-Down	12-WSON	2 mm	3 mm	125 °C	-40 °C	93 %
Texas Instruments LM5155QDSSTQ1				Transistor Driver											12-WFDFN Exposed Pad	Positive	Boost Flyback SEPIC	1	No	45 V	2.97 V	Soft Start	100 kHz	2.2 MHz	Yes	1	Surface Mount Wettable Flank	Step-Up Step-Up/Step-Down	12-WSON	2 mm	3 mm	150 °C	-40 °C	93 %	AEC-Q100	Automotive
Texas Instruments LM5155EVM-BST	Fully Populated	Board(s)	1	Non-Isolated	1 count	Board	Boost	6 V	18 V	2 A	440 kHz	DC/DC Step Up	24 V	LM5155